That's a great idea, I can't believe I didn't think about that, oh wait a second actually I did that's what that little T is for on the intake tube, I actually think I forgot to put it on, but yeah I'm pretty confident this thing's going to make some serious boost and Power
You will never make boost with giant turbo on that tiny engine, there is not enough exhaust pressure to make boost. You need a teeeny weeny turbo like an IHI RHB31. then if it stays together maybe 15hp. but you will need a bigger carb like Carter #30 Carb. put a shock absorber on your scale.....
If you going to use that big of a turbo it should be a compound turbo setup. However that's going to a crazy build and you'll definitely want a thicker shield to stand behind
You did an amazing job and put a tremendous amount of effort into this video from setting up the dyno to installing the turbo. Great job! Keep making videos--we enjoy them! Best regards, Project Farm
Now do an electric motor comparison at 3 HP rating. You will find that the electric motor will increase in horsepower as you load it down beyond its nameplate rating. Something combustion engines are not capable of. Don't use compressor duty electric motors as they are already peak rated. Use a real 3 HP electric motor. A good one that is not too pricey is Leeson 120341, 3 HP wood working motor. You will need 220 volt supply.
Forget the turbo, just attach a leafblower to it, that turbo is almost as big as the engine, it was probably restricting airflow rather than improving it. Though i do love the spool noises
i've seen videos on that two guys putting two leaf blowers on there car. the leaf blower wasn't producing any boost that's because the engine itself has ability to suck same amount of air that leaf blower was producing hence it was doing no effect, but might be another thing for this engine which is shown in video.
I agree. An oversized turbo like that will result in a loss of feed air pressure. That single turbo might work with 4 or more of those motors tied together and breathing through it.
Although you can't use a leafblower in that setup. The fuel air mixture will detonate due to the slipring spark. It would explode the leafblower. Now, using an air compressor and pressurizing the fuel system would probably do the trick. Would probably destroy the bearings and explode the motor at about 9HP.
That’s an ingenious dyno. I was thinking, how could he possible know what pressure the master cylinder correlates to what torque it would generate. But your brake is mounted to the torque gauge showing you the rotational force placed directly on it. Maybe you should explain that a little better in the beginning. But awesome either way.
Warped Perception, I loved the video. It shows a lot of thought. The home made dyno was the bomb. Point of trivia. I have a machine shop guru neighbor, who builds 3.5 Briggs, and 6.5 Honda single cylinder engines, for professional go cart racing. He's getting, the last I heard him say, 32 horses out of a 3.5 Briggs, and over 60, out of the Honda clones. 14.5 compression, big titanium valves, Mikuni carbs, wide overlay cams, and Methanol, with trick exhausts; fly weight aluminum flywheels. The Briggs are balanced and turning over ten thousand RPM's. The Hondas are balanced, and turning 12,000, to 14,000 RPM's. They make 100 mph go karts, if you have the nads to stay in them. I understand what you are doing, and why. It's fun, and something to learn. But, if you want to turn that little one lunger on, there is nothing like big tuned carbs, and compression, with breathing ability. Five thousand RPM's is just the beginning of making horsepower. As my uncle said fifty years ago, "If you want more horses, you gotta feed more oats."
Lol, that's a great story thanks, I can totally believe it. As for more horses from more oats that makes sense. My goal here in this series is to focus on variables outside of the engine design, pretty much I don't really want to modify the engine much but modify the variables if that makes sense. My original goal was to get the thing to blow up so I can move on with the engines that I'm featuring right behind this one, but this little Briggs is not cooperating so I'm just upping the ante as I go. Hopefully it blows in the next episode. Thanks for the story and thanks for the feedback that was awesome.
Exactly, and I'm all in, on what you're doing. Two different goals, with different means. Those engines start with $$$. When you asked for bets, on horses produced, in the beginning, I said '75 horses,,,,, no,,,95' haha. I thought it would be exotically wild!
Those Briggs & Stratton flat-head utility 4-strokes are legendarily solid engines. They haven't really changed much since the 70s and for good reason, it's damn-near impossible to destroy them under normal/heavy usage.
I was thinking the same thing. The turbo is too massive for that exhaust to spin up since there's only 1 cylinder pushing it. If this were 2 cylinders, it 'might' spool it up fast enough. Maybe go down 1/3 in size of the turbo. Hopefully after reading these comments he'll make the suggested changes and review the performance :)
@@korishan yes sir, my figured why not try it out, what I thought was super cool was looking at the high-speed footage during the last take, even though the turbo is spooling up you can see the individual exhaust pulses.
@@WarpedYT. I like your idea of getting injectors. I met a guy that had two turbos in series with each other. If you do find a smaller turbo maybe use both? I mean, why not... right?
Well This is a 27 mm turbo, the smallest that I can find online is a 25 mm. Keep in mind that this is the primary turbocharger of the sequential setup on the SL 65. If you have ever heard a SL65 Idle, you will notice that you can hear the turbo whine in the exhaust even when the engine is at 600 RPM. This little turbo is basically producing boost at idle when on it's original application, then at about 2, 000 RPM the transition occurs into the bigger turbo which I believe is a 55 mm, I'll have to measure it but yeah, for me 2mm isn't anything a little more fuel and timing can't make up for. And for the record I actually went to buy that little turbo, but I thought it was way cooler to take a turbo from a car and modify it to fit this engine.
@@WarpedYT I think your down pipe is too restrictive because it's on a cone chapel and produces unnecessary pressure just for the burnt gas to get put.
Yeah, I've heard that one too but, I don't know I might make a note of that and include that in the episode where I'm supposed to put oxygen and acetylene into a running engine...lbvs. I may still do that one day, just for fun. And I have to film that it with high-speed cameras.
Man... you ROCK. Simple talking, no arrogance at all and you have a great knowledge. There are those how can TEACH. Teaching is easy. But you, my friend, are way beyond teaching. Teach is basically follow steps. You do it with passion, natural speaking, we can feel that you do what you LOVE to do. And when we do something we love... its not about money, its not about showing off, its all about let your soul be free and captivate others. Just watch one or 2 videos and anyone will fall in love and subcribe. DO WITH PASSION. And I know you do. Thanks man, wish you all the best.
Thank you very much, it took me a while to get the format together but all your saying is true. I do infact love what I do and I'm very good at it indeed. Thanks for the feedback and thanks for watching, I'm glad you enjoyed the epiosdes.
I'm not sure the Turbo IS too big but I can gaurantee you the carb is too small to make max power the engine will produce. they are a horrible ancient design anyway. I used to Modify these engines and go from a 12mm carb to a 24 or 27 Mikuni and that made a HUGE difference with no other mods than a decent exhaust that wasn't made for a 5 HP flow rate. If the turbo is boosting it it probably wasting energy creating a vaccum as it were through that little carb. Remember, the carb is designed to flow enough for the engine rating, 3.5 or 5hp. It becomes a restriction when you are trying to get double/ 3times or more through it. Most basic thing of hot rodding was bigger carb and exhaust. Mikuni Carbs are good because you can change the jet sizes easily and they are readily available. If you don't know what you are looking at it can be bit of a challenge but black smoke is Rich, back firing is lean and read the plugs after a run till you get a nice tan colour and ajust accordingly till you get there. Until you get enough air and fuel in there, the thing will never really get up on the boost curve and make it's full power.
He's in a workshop for goodness sake, just hook up the air compressor to the carb and squirt in compressed air, why waste hp on such a small engine to drive a turbo blade on the exhaust.
I agree, it will need allot more fuel when it starts to come on boost, I would love to see you try adapt a bigger carb and get it to suit the turbo. Great videos, looking forward to more like this.
Plus the carb is not designed to work under boost. Clearly it isn't making any real boost or he would be pushing the fuel out of the carb back in to the fuel tank.
That's a lot of useful information actually. I saw that in the turbo version the intake of the compressor wheel is smaller when the carburator mounts on. I know it's not the easiest thing to make it larger, but it would be interesting to see if it could make any difference. Maybe a larger carburator. I really loved the video :)
Thanks, and making this episode I took into account the fact that not many people know what horsepower actually is. yeah this turbo is actually pretty small, it's the primary turbo charger from the sequential setup on the SL 65. It's a 27 mm compressor wheel. That would be interesting for sure, I'm probably going to make it fuel injected.
It's actually not, it's the primary turbo charger from the SL65, it's 27 mm. it's a baby, but for the next episode I will probably redesign this set up a bit, and also Mount the smaller turbo charger that I have.
I don’t know much here but I would think that turbo is WAY too large for a 3hp NA motor. If you had a boost gauge on it, I would bet it’s not building any boost pressure. Get a hold of the smallest turbo you can find affordable and try again. ...pretty please with a cherry on top. Very entertaining video!
Normally you would be correct, however in this case keep in mind I'm running nitromethane, if you add more fuel than turbo will spool, and also be red like a cherry on top, seriously. but in the next episode I'm going to compare this turbo setup to a proper smaller turbo setup and see which one makes more power, I'm personally curious to see what's going to happen.
Warped Perception ...any chance of adding a boost/vacuum PSI gauge for both setups? Like this one... www.ebay.com/p/2-1-2-Oil-Filled-Vacuum-Pressure-Gauge-Stainless-Steel-Case-Brass-1-4-NPT-Lower-Mount-Connection/18009805941?iid=112570901268&chn=ps&ul_ref=https%253A%252F%252Frover.ebay.com%252Frover%252F1%252F711-117182-37290-0%252F2%253Fmpre%253Dhttps%25253A%25252F%25252Fwww.ebay.com%25252Fp%25252F2-1-2-Oil-Filled-Vacuum-Pressure-Gauge-Stainless-Steel-Case-Brass-1-4-NPT-Lower-Mount-Connection%25252F18009805941%25253Fiid%25253D112570901268%252526chn%25253Dps%2526itemid%253D112570901268%2526targetid%253D474173449909%2526device%253Dm%2526adtype%253Dpla%2526googleloc%253D9033589%2526poi%253D%2526campaignid%253D1481359801%2526adgroupid%253D56517111999%2526rlsatarget%253Dpla-474173449909%2526abcId%253D1139296%2526merchantid%253D6512264%2526pt%253D%2526gclid%253DEAIaIQobChMIl5qgqOvr3QIVx2t-Ch0ttADhEAkYEyABEgI28PD_BwE%2526srcrot%253D711-117182-37290-0%2526rvr_id%253D1691169562493%2526rvr_ts%253D3d1c53c51660ac84c2e50491ffeb92e6
This is great! My Dad works in R&D at Briggs and I'm going to share this with him. He will be interested to see! You are super talented and also for doing this neat compilation, thanks!
Love how simple your dyno setup was! One suggestion I have to reduce the oscillation that sometimes happened while braking, add some extra weight that doesn't stop it from pulling on the scale, yet also resists quick movements
Megasquirt injector setup with some feedback relayed through an arduino, and a smaller turbo from an engine smaller than 2L. (Might have to import a turbo from Europe intended for some small displacement 3-cylinder car.) And put an O2 on it to try and setup for a closed-loop run. That'd also be fun, as you could try to come up with a table for advance and fuel amount and timing. (Eke every last thing out of it like a modern car engine.) Ridiculous? Yeah. But definitely interesting and opportunities to learn some stuff. --- Edit --- Did a little bit of Google searching. Ford has a 1L Ecoboost as an option on some Fiesta models in the U.S. (surprised they had them here), so that's where to look for the appropriately small turbo.
The turbo is too big. If you find a really small turbo you could probably get an increase in power and it would also help a lot of you used something like an air compressor to spool it up. But definitely give this another try - I love these videos
Well it's a 27 mm Turbo, the smallest turbo that I know of is 25 mm, so I figured it was pretty close, I mean it started spooling, so that means it will be able to make boost. I thought the fact that I pulled it off of a car and put it on this little engine was funny in itself.
@@WarpedYT Yeah that's a pretty small turbo and the fact this is even happening is already some Frankenstein-esque shenanigans. This is kinda dumb but what if you got two engines for one turbo? Now that would be crazy 😂
@@jrdn.lauren the only possible way for two to work on this small engine is if he got a smaller one to spool up the bigger one and we'll honesty I doubt 3.5 HP is enough to do that
What a great video. Just the right balance of backyard buffoonery and actual science. And you also got straight to it without waffling on for 5 min. Quality. Subbed.
That dyno is brilliant! Super cool to see you do this! Im thinking maybe try replacing the spring scale with kitchen scale and have the brake push down to it so maybe the bouncing around stops.
Thank you, well I figured out that the bouncing around was actually coming from the variable resistance of the grain from the Machining of the disk. Once it's broke in it's fine now. Nice and smooth
Put smaller turbo check ebay for the smallest turbo available. Feed it with at least two bar of oil pressure with proper drain. Use an electric oil pump or something...
Just sayin just because a turbo spools doesn't necessarily mean it's making usable boost. It can "make boost", but it may not be beneficial over an n/a setup
not a new motor? doesn't exotic fuel REALLY pollute the oil? that is why many Karters change oil at the end of each days run.... each race? $3/qt oil vs $150 (claim price without $120 billet flywheel) for motors that get "claimed" in 1-3 races. that wud upset me as I wud HAVE TO port the head and that is like 2-3 hours work, springs, ...
Hello, I'm Brazilian and I'm really enjoying your work, continue this series, we here in Brazil, motor lovers are very satisfied with these fantastic experiences. Hugs.
I made 112cc engine to reach 12HP and 18nm of torque with no turbo at all. Turbo is not very effective on really small engines, try to upgrade the ignition, camshaft and raise the compression ratio to the point it requires avgas to run.
Myself run 100cc moped race bike with around 12-14hp...full n.a mod.. big valve, big cam, 12:1cr and runs on pump gas 97ron (95 octane??)... Competing in 3 and 4hours kapcai endurance (moped endurance race)
@@AmirPomen I'm focusing more on the low rpm torque since I mostly use my moped in traffic and offroad. I won a tug of war competition with 150cc stock bike and once the passenger almost fell to the back during hard acceleration and push me forward when letting go off the gas (engine brake). And people don't see it coming since it's just restored to it's original body, no weight reduction or visual mods. Also, I'm using a brand new stock exhaust, so it will roar on the carburettor intake on full throttle while not getting caught by the police during traffic checkpoints.
I thought about that too, but I think would stall/surge because the engine would never have enough flow throughput for it and would almost immediately cause detonation. A smaller turbo would be best, maybe like a MPS or small 4cyc turbo diesel turbo, the newer the better because it would be more efficient providing a better chance to spin up from an engine this small. Additionally that expansion chamber weirdness he has, leading down to a small pipe again that's on the back of the turbo wouldn't be doing it any favours with spool.
We used a leaf blower to supercharge a HF 6.5hp on Methanol mix, and got a little over 14hp. Not that great when figure in the cost of running the gas blower too, but we had fun. We did have to use a dump gate due to the volume of air. Love your videos, Smiles.
With turbos always tune to the rich side without loosing HP and the mix will be right where it needs to be. This should work just fine as the testing is done in a small RPM range.
@Dave Micolichek Ram jets only run at high air speed so you would need to run really fast. Kidding a side given enough time a A/F ratio sensor is never needed on a ICE but its much quicker to do so. I would not waste the money on a A/F sensor for a turbo small engine that has a narrow rpm range. Should be easy to tune by eye and ear.
You are one smart dude, creative and innovative. My guess is go electronic on this turbo set up and find a way to get more velocity from the exhaust to spool the turbo. Keep going on this really cool.
Very intelligent guy indeed. I would have to say, a fuel injector, some sort of electric pump and a small fuel pressure regulator. Then of course as you mentioned some type of DFI unit to max the project. A tiny intercooler certainly would not hurt! Lol Great job Sir! A genius indeed!
Likely blowing out the spark. Not enough energy once you go into positive pressure. They make stronger coils for those engines and I think you will get what you are looking for. With nitro (as I mentioned before) the equation is simple, enough fuel till the engine chokes and enough spark to light dirt. Once you add boost, you need more sparky. Love the build!!! :-D BTW draw through is perfectly fine for nitro like this. You need loads of fuel so you almost don't even need a carb lol. Just a hose in front of the turbo inlet and a flap in front of the inlet to limit the airflow. Nitro is a funny animal, and I do mean animal.
I have made a few very high-compression engines work well even with stock ignition/coils and aged wires, just by reducing the spark gap. I ran a high-compression Super Gas bike for three years to good result just by reducing gaps from .028" down to .024"! Nitro doesn't like to stay mixed within the air stream, so may really limit how much fuel that can be fed in. You need a LOT(!) of liquid volume per unit air volume when running nitro. The upstream carb might be a problem because of this, and yes it is restricting the intake air by a lot. Any slight improvement in air flow rate will show about double the expected improvement, since the added exhaust energy will further help the turbo along, so improving the carb (or improving the exhaust flow from the ehxaust valve to the turbo) may show a disproportionate improvement in power. Two-strokes also work this way because their exhaust system supercharges the engine from the exhaust side. And another poster here was RIGHT ON about the intake manifold needing an elastic reservoir to allow pressurized air/fuel to build up unrestricted while the intake valve is closed! Adding a large "boost bottle" tee'd into the intake is needed here but becomes an explosion hazard that must be passively contained with a "blower blanket" strapped on. Anyway, the apparent "shortcomings" of this experiment are actually an educational feature of this video that makes people think and discuss what it takes to actually achieve actual benefits in the real world. An exhaust O2 sensor might not work on a setup like this because there will always be a ton of O2 in this engine's exhaust when running nitro and ESPECIALLY with a turbo added on. Excellent video.
Hahaha so, When the transparent head broke at first attempt and your reaction of ooohhhh, the video cut to an advert, FOR O'RILEY'S hahahaha Perfect. I paused to share that, let me resume this great video!!! Thanks WP!!
Shoulda used a smaller turbo. Will definitely make more power. Basically its like rob dahm putting a ship turbo in his rx7 is what you did with the turbo from the car
Wet vs dry boost; probably a very valid idea! As far as US production cars are concerned in the modern era, Studebaker used a carb box on their blown Golden Hawk in 1957, then starting in 1963, they used a special sealed AFB carb on their R2 engine, and reverted to the carb box with the higher boosted R3 and R5 engines. The latter ran over 200 MPH at Bonneville in 1964, all with a 5 liter engine. Pretty impressive for a stock bodied car at the time! They used basically box stock Paxton/McCulloch blowers. The R2 would make about 8 pounds of boost in bone stock condition, although some claimed more...but with all new parts I'm assuming. In a completely different situation, the 2 stroke Detroit Diesels all were supercharged, but later models offered turbos. In my own case, a Turbo 6V92 engine was speced at 350 HP at 1950 RPM. When the boost reached about 12 pounds, you could feel the difference. That was 552 cubic inches.
For real, in the past I've watched all sorts of videos on TH-cam oh, and I would buy the products just to find out that they suck, and the TH-camr just did it for the money, that made it suck twice as bad.
To put a full sized turbo made for a car engine on a basically a lawn mower engine, and hope it produces significant boost, that a lot to hope for. Come on, man!? I do understand you don't want to go and buy a new turbo specific for this but still. At least get a smaller car turbo if you can.
Indeed, he did say that. :) But spooling up means bollocks if you can't get enough exhaust pressure and turbine's rpms for the compressor to produce boost.
Well actually look it up. This is a 27 mm turbo, the smallest that I can find online is a 25 mm. Keep in mind that this is the primary turbocharger of the sequential setup on the SL 65. If you have ever heard a SL65 Idle, you will notice that you can hear the turbo whine in the exhaust even when the engine is at 600 RPM. This little turbo is basically producing boost at idle when on it's original application, then at about 2, 000 RPM the transition occurs into the bigger turbo which I believe is a 55 mm, I'll have to measure it but yeah, for me 2mm isn't anything a little more fuel and timing can't make up for. And for the record I actually went to buy that little turbo, but I thought it was way cooler to take a turbo from a car and modify it to fit this engine.
I stand corrected! Thank you for your input. I dare to ask, why then didn't it created significant boost?? Not enough engine RPM range?? Nevermind, I honestly wouldn't know.
That was a LOT of work, ingenious fabrication, and excellent use of video equipment. Pure enjoyment! Love the SLOMO! I wish I could do stuff like that!
Wow man! What an amazing job you did there! The extremes that you go to show stuff in your videos is amazing and really appreciated!! Thanks for sharing all these amazing videos. I do appreciate them in many levels!
Really enjoy these videos however I think your measurement of horsepower is flawed. You are measureing horsepower at the peak observed torque. Engines almost never make peak horsepower at the rpm that peak torque is made. My diesel for instance makes peak torque (425lbft) at 1800rpm whereas peak horsepower is made at around 4200rpm where it is making significantly less torque. If one were to use your measurement method on this engine by snapshotting peak torque and calculating there you would only see 145hp. About half of the cars rated horsepower. I think to get better data points you need to devise a damping mechanism for your spring scale based dynamometer (look into cheap ebay motorcycle steering dampers) and try to get accurate torque measurements in something like 250-500rpm increments and plot the torque/calculater horsepower on a graph. This will give you a much better idea of any increase or decrease in performance. Again, love these vids and keep it up. Just trying to help you out.
Yes, engines make peak torque at a lower RPM than peak horse power. The lines on the dyno graph cross at ,I think, I'm a little rusty, 5252 rpm. Due to how the maths works with how they are calculated. As I say, I'm a little rusty.
This engine will only rev to where he is measuring. If it would make X hp at 6000rpm, it would have gone there and he could have measured it. From what I saw the motor made more tq down low, but he measured where max RPM was. I could swear I saw some TQ numbers in the mid 20's on the vid at lower RPM which would have put this engine about 5hp and 8lb ft. Right in line with what it should do. These type of engines always make more tq than hp. I don't know if he removed the governor, but I certainly hope so. If not, that's what's holding him back as it tends to limit these engines to about 4000rpm max with an operational rpm of about 3600. It's actually acting very much like it does still have the gov on there.
You, Sir, are phenomenal. Your skill of hand, dedication, and teaching is a joy to watch. I could lose days watching your videos. I am an engineer and you in a school would have them queuing out of the door. Thank you.
Spencer Clements as a service tech at a lawnmower place I've seen plenty of blown up Briggs. A few in a row that went out on Friday and came back Monday.
@@John-nd7il. Anything can blow, I've popped many many briggs racing karts as a kid. On the other hand, briggs hold up crazy good against the shitboxes you get today
I have a smaller turbo, and I'm planning on mounting it, but first I need to get this turbo to make boost, one way or another, I know it will almost for sure.
@@WarpedYT maybe trying some nitrous oxide to get the turbo to spool up my buddy used to use a little sneak a peek shot on his junior dragster maybe that will help
@@WarpedYT Turn it into a centrifugal super charger? Take the exhaust housing off and find a brushless motor that will produce enough RPM. Then youre force feeding it boost rather than hoping for the exhaust gas to have enough pressure.
awesome vid n thumbs up to that effort.....u need more hp? Step 1 : return this turbo 2. lets start with the engine itself without the turbo 3. if gasoline gives u 3.1hp, then within technical limits u should get 9.3hp just changing the fuel to CH3NO2 4. CH3NO2 has stoich ratio of 1.7:1 which mean it needs 8 times more fuel pumped in per stroke than gasoline, which also means that if u have the cfm of the carb constant u need to atleast replace the main jet with a much larger jet. 5. we should all be more than happy if u get 8-9hp out of this setup. if u need more we can look in2 the compression ratio the engine is running. 6. shaving off the cylinder head will increase the CR n maybe 10BHP !
I would like to mention I do believe that the horsepower was less on the Turbo System because the impeller was too heavy and actually became a slight restriction to the exhaust. I don't know if that's true but it's just a thought one thing that I had thought about is using a high volume of air discharged from something like a compressed air tank into the system that would give you a very cheap turbocharged but it would be very finite I don't know if that would be something that could be engineered to give it a forced induction
Yes you are correct, up to the point where the turbo spools and starts capturing heat energy it's just a restriction, but as soon as it gets up into its operating range the efficiency skyrockets. I'm not going to pretend that I didn't know that but I wanted to end episode there, that gives everybody a chance to put in their own opinions before the next episode. But yeah you hit it right on the money. Also with the compressed air I'm not sure, that might be something I can try out in the future but I know for sure it's going to have to be matched with the correct amount of fuel I was just going to start running lean almost immediately.
@@WarpedYT yes I know you are correct about the the fuel mixture going lean. It's cool to see these things on TH-cam I will subscribe to your page my father raised me in the shop we have had much fun with building high-speed Volkswagen Beetles dirt bikes and even motorcycles
@@Etownstomp09 do you know why ethanol is doing this? Compared to gasoline the ethanol has a lower boiling point so it's going back into the engine by the PCV and not staying in the oil for a long time. So it's causing less dilution normally.
You’re awesome man! Yes people gonna comment that too many user errors and this and that of course won’t work but I see the video as just a dude having fun and not editing out stuff only to make you look perfect. Life isn’t meant to be so serious. Id love to kick it in your workshop, have a couple beers and create crazy random projects lol
Have you considered twin-spark? Because the combustion chamber is odd shaped on a side valve engine, it might benefit from another spark plug to ignite the flame front more evenly thus giving a sharper kick - if it is possible to fit another one on the cylinder head.
Try funnelling the exhaust down to about half the square area and aim it directly at the turbine. Make the nozzle go past the connecting flange so the velocity doesnt slow down before it hits the vanes. Its like comparing a leaf blower to an air nozzle with 100 psi. They put out about the same amount of cfm but the leaf blower could never spool up a turbo like an air nozzle could. Look up how steam turbines are built, specifically the nozzles. Keep it up. Great fun to watch and you're doing a great job. Thanks.
Great work actually going out and trying to turbo a little 3hp. Most people just scoff at the idea and say it won't build boost. If you really want to build usable horsepower, however, you will need a smaller turbo. You are limited to your exhaust pressure by bore/stroke and rpm. The suggested IHI RHB31 suggested by Cape Cod CNC just might do the trick if you concentrate on keeping the exhaust temps and hot side of the turbo as hot as possible and keep the exhaust velocity as high as possible. You want the exhaust to keep a high velocity until just before the wheel and as hot as possible to take advantage of the rapid expansion of gases to aid in spooling up the turbo. The heat will do as much or more to spin the wheel than the exhaust pressure will with that small engine and modest rpm range. If your really stuck on using that turbo you could run it very rich to where you are blowing raw fuel into the exhaust and then lean it out and hammer it. You need the fuel in the exhaust to ignite until its cherry red. The heat might be enough to actually spool the turbo enough to gain some horsepower. Its not ideal, but its very effective.
I like the " Can't lose" attitude. I like all the other creativity. Cut your grass with that engine, on a self propelled, next door to me........., I will flatten your "hard rubber", lawn mower tires. LOL ! I played with lawn mower engines in my teen years (Mid 1960s), that's 50+ years ago, (i'm 68). What the hell..., They're cutin down trees with top fuel Chain Saws. Lets get to work on some serious Lawn Care equipment. QUIT SLAKIN OFFF ! What about some Nitrous-Oxide (?), get us a Track Star to cut the grass... (a Black Guy) , "JERRY RICE" ! Touch down....... = 11.9 Horse power .
Man, this series of videos was A-FREAKIN-MA-ZING! I've been watching some of your videos, specially those about see thru engines, and this was THE best! Comparing between methacrylate header, stock header, nitro, nitro+turbo... I'd like to see even more! Maybe a smaller turbo would make better BHP? Anyways, keep the good work, cheers! I just subscribed to your channel, don't wanna miss any videos like that :)
Made me laugh seeing the choice being so comparatively big, simply because it's just great to see somebody do something that nobody else would attempt. Love these videos, your ideas of adding an injection setup etc sounds great man, gotta be done, it's your duty to engineering and the internet!
@@dylanzrim1011 No. You cannot. That motor would have to turn in excess of 12-15,000 rpm to get anywhere near the gas flow of the engine that the turbo was designed for. It was designed for the exhaust flow and pulses of at least a 4cyl motor. For a 500cc single cylinder engine to have anywhere near the same exhaust properties as a 2000cc 4cyl, the single cylinder engine would have to be turning approximately 4x faster.
Daniel Beard it's from a compound set up yes? Meaning it is a low rev turbo. He's not looking to make 30lb of boost. That motor could probably only take 5lb at most if lucky. I'll admit it would still be a bit laggy
@Dave Micolichek Yes mostly because the Briggs had half the power. On top end a Tecumseh 3 horse would out run a Briggs 5 horse. I ran a 3 horse Tec with a cam, shaved head, 104 octane fuel, no governor with cranked timing on a stock rod never a problem.
@Dave Micolichek Reply went up in smoke so one more time. Engine was all stock parts less a cigar muffler. The head was shaved, bumped ignition timing and no governor. The Tecumseh engines made better power do to adjustable ignition timing and better carburation. I ran my 3 hp Tec wound tight but never with out a good load on it. I would guess the lack of load is what killed the ones you saw back in the day.
![BOWKYLION - วิงวอน (ex-change) [Official MV]](http://i.ytimg.com/vi/cLdnZWDaO-w/mqdefault.jpg)
Add a boost gauge to see if you are actually making positive intake pressure.
That's a great idea, I can't believe I didn't think about that, oh wait a second actually I did that's what that little T is for on the intake tube, I actually think I forgot to put it on, but yeah I'm pretty confident this thing's going to make some serious boost and Power
You will never make boost with giant turbo on that tiny engine, there is not enough exhaust pressure to make boost. You need a teeeny weeny turbo like an IHI RHB31. then if it stays together maybe 15hp. but you will need a bigger carb like Carter #30 Carb. put a shock absorber on your scale.....
never say never, Ill take that as a challenge! ...lol
@@WarpedYT give it hell! put a boost gauge on to see what's happening. those little turbos are cheap on ebay and so are the carbs
My thoughts exactly. The turbo is too big for the engine and it can’t spool up properly. Put a tiny turbo on it and see what happens!
yep get a ihi tiny turd blow that be fun ;} efi speedinuo megasquirt ?
If you going to use that big of a turbo it should be a compound turbo setup. However that's going to a crazy build and you'll definitely want a thicker shield to stand behind
You did an amazing job and put a tremendous amount of effort into this video from setting up the dyno to installing the turbo. Great job! Keep making videos--we enjoy them! Best regards, Project Farm
Thank you brother, I actually used your "in the carburetor" shot in one of my past episodes !!, It was definitely inspiring and I had to try it.
To simulate a little experiment for us guys who have Jdm cars and run that kind of stuff for racing drifting etc
Cayden Brown Are you from Iowa?
no.
Now do an electric motor comparison at 3 HP rating. You will find that the electric motor will increase in horsepower as you load it down beyond its nameplate rating. Something combustion engines are not capable of. Don't use compressor duty electric motors as they are already peak rated. Use a real 3 HP electric motor. A good one that is not too pricey is Leeson 120341, 3 HP wood working motor. You will need 220 volt supply.
Next up time: Nitro Turbo, EFI and a 500 shot of nitrous
Thanks so much for doing this. I can appreciate the amount of time and effort you put into this project.
Forget the turbo, just attach a leafblower to it, that turbo is almost as big as the engine, it was probably restricting airflow rather than improving it. Though i do love the spool noises
i've seen videos on that two guys putting two leaf blowers on there car. the leaf blower wasn't producing any boost that's because the engine itself has ability to suck same amount of air that leaf blower was producing hence it was doing no effect, but might be another thing for this engine which is shown in video.
a leaf blower would have to work as a blow through, which would complicate the setup massively. probs best to persevere with the turbo.
Mighty Car Mods did that with a Daihatsu Chirade and it made a few more hp.
I agree. An oversized turbo like that will result in a loss of feed air pressure. That single turbo might work with 4 or more of those motors tied together and breathing through it.
Although you can't use a leafblower in that setup. The fuel air mixture will detonate due to the slipring spark. It would explode the leafblower.
Now, using an air compressor and pressurizing the fuel system would probably do the trick. Would probably destroy the bearings and explode the motor at about 9HP.
Cool how adding the nitromethane instantly makes that puny little engine sound like a dragster.
Nitro +advance timing=instant HP
I love this series man. It's a damn shame Briggs and Stratton went under recently. Damn good engine.
That’s an ingenious dyno.
I was thinking, how could he possible know what pressure the master cylinder correlates to what torque it would generate. But your brake is mounted to the torque gauge showing you the rotational force placed directly on it.
Maybe you should explain that a little better in the beginning. But awesome either way.
Warped Perception, I loved the video. It shows a lot of thought. The home made dyno was the bomb.
Point of trivia.
I have a machine shop guru neighbor, who builds 3.5 Briggs, and 6.5 Honda single cylinder engines, for professional go cart racing. He's getting, the last I heard him say, 32 horses out of a 3.5 Briggs, and over 60, out of the Honda clones. 14.5 compression, big titanium valves, Mikuni carbs, wide overlay cams, and Methanol, with trick exhausts; fly weight aluminum flywheels. The Briggs are balanced and turning over ten thousand RPM's. The Hondas are balanced, and turning 12,000, to 14,000 RPM's. They make 100 mph go karts, if you have the nads to stay in them.
I understand what you are doing, and why. It's fun, and something to learn. But, if you want to turn that little one lunger on, there is nothing like big tuned carbs, and compression, with breathing ability. Five thousand RPM's is just the beginning of making horsepower.
As my uncle said fifty years ago, "If you want more horses, you gotta feed more oats."
Lol, that's a great story thanks, I can totally believe it. As for more horses from more oats that makes sense. My goal here in this series is to focus on variables outside of the engine design, pretty much I don't really want to modify the engine much but modify the variables if that makes sense. My original goal was to get the thing to blow up so I can move on with the engines that I'm featuring right behind this one, but this little Briggs is not cooperating so I'm just upping the ante as I go. Hopefully it blows in the next episode. Thanks for the story and thanks for the feedback that was awesome.
Exactly, and I'm all in, on what you're doing. Two different goals, with different means. Those engines start with $$$. When you asked for bets, on horses produced, in the beginning, I said '75 horses,,,,, no,,,95' haha. I thought it would be exotically wild!
Those Briggs & Stratton flat-head utility 4-strokes are legendarily solid engines. They haven't really changed much since the 70s and for good reason, it's damn-near impossible to destroy them under normal/heavy usage.
Mash Rien except for the fact that they’re made in China now. Kind of a bummer
Turbo is too big I reckon, fit a wideband o2 sensor on it to help get the tune right 👍
I was thinking the same thing. The turbo is too massive for that exhaust to spin up since there's only 1 cylinder pushing it. If this were 2 cylinders, it 'might' spool it up fast enough.
Maybe go down 1/3 in size of the turbo. Hopefully after reading these comments he'll make the suggested changes and review the performance :)
@@korishan yes sir, my figured why not try it out, what I thought was super cool was looking at the high-speed footage during the last take, even though the turbo is spooling up you can see the individual exhaust pulses.
@@WarpedYT. I like your idea of getting injectors. I met a guy that had two turbos in series with each other. If you do find a smaller turbo maybe use both? I mean, why not... right?
Well This is a 27 mm turbo, the smallest that I can find online is a 25 mm. Keep in mind that this is the primary turbocharger of the sequential setup on the SL 65. If you have ever heard a SL65 Idle, you will notice that you can hear the turbo whine in the exhaust even when the engine is at 600 RPM. This little turbo is basically producing boost at idle when on it's original application, then at about 2, 000 RPM the transition occurs into the bigger turbo which I believe is a 55 mm, I'll have to measure it but yeah, for me 2mm isn't anything a little more fuel and timing can't make up for. And for the record I actually went to buy that little turbo, but I thought it was way cooler to take a turbo from a car and modify it to fit this engine.
@@WarpedYT I think your down pipe is too restrictive because it's on a cone chapel and produces unnecessary pressure just for the burnt gas to get put.
Dang that was a lot of work. Well done! An urban myth I heard years ago was about a guy that tried to boost HP by shooting oxygen into the carb.
Yeah, I've heard that one too but, I don't know I might make a note of that and include that in the episode where I'm supposed to put oxygen and acetylene into a running engine...lbvs. I may still do that one day, just for fun. And I have to film that it with high-speed cameras.
Oh, oxy-acetylene would be good
it'd work!
www.hotrod.com/articles/compressed-air-supercharging/ These guys use air.
TAOFLEDERMAUS compressed air super charging if that’s what you talking about not a myth
www.hotrod.com/articles/compressed-air-supercharging/
Absolutely a A+ for the effort!
Man... you ROCK.
Simple talking, no arrogance at all and you have a great knowledge.
There are those how can TEACH.
Teaching is easy.
But you, my friend, are way beyond teaching.
Teach is basically follow steps.
You do it with passion, natural speaking, we can feel that you do what you LOVE to do.
And when we do something we love... its not about money, its not about showing off, its all about let your soul be free and captivate others.
Just watch one or 2 videos and anyone will fall in love and subcribe.
DO WITH PASSION.
And I know you do.
Thanks man, wish you all the best.
Thank you very much, it took me a while to get the format together but all your saying is true. I do infact love what I do and I'm very good at it indeed. Thanks for the feedback and thanks for watching, I'm glad you enjoyed the epiosdes.
@@WarpedYT Yes you are indeed. In fact, way beyond GOOD buddy.
@@carlosfabricioalf thanks !!
I'm not sure the Turbo IS too big but I can gaurantee you the carb is too small to make max power the engine will produce. they are a horrible ancient design anyway.
I used to Modify these engines and go from a 12mm carb to a 24 or 27 Mikuni and that made a HUGE difference with no other mods than a decent exhaust that wasn't made for a 5 HP flow rate.
If the turbo is boosting it it probably wasting energy creating a vaccum as it were through that little carb. Remember, the carb is designed to flow enough for the engine rating, 3.5 or 5hp. It becomes a restriction when you are trying to get double/ 3times or more through it. Most basic thing of hot rodding was bigger carb and exhaust.
Mikuni Carbs are good because you can change the jet sizes easily and they are readily available. If you don't know what you are looking at it can be bit of a challenge but black smoke is Rich, back firing is lean and read the plugs after a run till you get a nice tan colour and ajust accordingly till you get there.
Until you get enough air and fuel in there, the thing will never really get up on the boost curve and make it's full power.
He's in a workshop for goodness sake, just hook up the air compressor to the carb and squirt in compressed air, why waste hp on such a small engine to drive a turbo blade on the exhaust.
supersmalls I’m pretty sure the hp loss from driving a turbo is negligible.
I agree, it will need allot more fuel when it starts to come on boost, I would love to see you try adapt a bigger carb and get it to suit the turbo. Great videos, looking forward to more like this.
supersmalls that’s not how it works pal 😂
Plus the carb is not designed to work under boost. Clearly it isn't making any real boost or he would be pushing the fuel out of the carb back in to the fuel tank.
That's a lot of useful information actually. I saw that in the turbo version the intake of the compressor wheel is smaller when the carburator mounts on. I know it's not the easiest thing to make it larger, but it would be interesting to see if it could make any difference. Maybe a larger carburator. I really loved the video :)
Thanks, and making this episode I took into account the fact that not many people know what horsepower actually is. yeah this turbo is actually pretty small, it's the primary turbo charger from the sequential setup on the SL 65. It's a 27 mm compressor wheel. That would be interesting for sure, I'm probably going to make it fuel injected.
Hey johnny!!
The turbo is way too large..
It's actually not, it's the primary turbo charger from the SL65, it's 27 mm. it's a baby, but for the next episode I will probably redesign this set up a bit, and also Mount the smaller turbo charger that I have.
@@WarpedYT
MicroSquirt and MegaSquirt controllers are pretty cheap these days.
Accurate fuel and ignition mapping might get your HP numbers up.
I don’t know much here but I would think that turbo is WAY too large for a 3hp NA motor. If you had a boost gauge on it, I would bet it’s not building any boost pressure. Get a hold of the smallest turbo you can find affordable and try again. ...pretty please with a cherry on top. Very entertaining video!
Normally you would be correct, however in this case keep in mind I'm running nitromethane, if you add more fuel than turbo will spool, and also be red like a cherry on top, seriously. but in the next episode I'm going to compare this turbo setup to a proper smaller turbo setup and see which one makes more power, I'm personally curious to see what's going to happen.
Warped Perception ...any chance of adding a boost/vacuum PSI gauge for both setups? Like this one... www.ebay.com/p/2-1-2-Oil-Filled-Vacuum-Pressure-Gauge-Stainless-Steel-Case-Brass-1-4-NPT-Lower-Mount-Connection/18009805941?iid=112570901268&chn=ps&ul_ref=https%253A%252F%252Frover.ebay.com%252Frover%252F1%252F711-117182-37290-0%252F2%253Fmpre%253Dhttps%25253A%25252F%25252Fwww.ebay.com%25252Fp%25252F2-1-2-Oil-Filled-Vacuum-Pressure-Gauge-Stainless-Steel-Case-Brass-1-4-NPT-Lower-Mount-Connection%25252F18009805941%25253Fiid%25253D112570901268%252526chn%25253Dps%2526itemid%253D112570901268%2526targetid%253D474173449909%2526device%253Dm%2526adtype%253Dpla%2526googleloc%253D9033589%2526poi%253D%2526campaignid%253D1481359801%2526adgroupid%253D56517111999%2526rlsatarget%253Dpla-474173449909%2526abcId%253D1139296%2526merchantid%253D6512264%2526pt%253D%2526gclid%253DEAIaIQobChMIl5qgqOvr3QIVx2t-Ch0ttADhEAkYEyABEgI28PD_BwE%2526srcrot%253D711-117182-37290-0%2526rvr_id%253D1691169562493%2526rvr_ts%253D3d1c53c51660ac84c2e50491ffeb92e6
Warped Perception maybe a 15 mm turbo?
They are fairly large displacement. Don't be judging power output with capability to spool a turbo.
That's exactly what I was going to say.... Not to mention no intercooler.
This is great! My Dad works in R&D at Briggs and I'm going to share this with him. He will be interested to see! You are super talented and also for doing this neat compilation, thanks!
Love how simple your dyno setup was! One suggestion I have to reduce the oscillation that sometimes happened while braking, add some extra weight that doesn't stop it from pulling on the scale, yet also resists quick movements
Megasquirt injector setup with some feedback relayed through an arduino, and a smaller turbo from an engine smaller than 2L. (Might have to import a turbo from Europe intended for some small displacement 3-cylinder car.) And put an O2 on it to try and setup for a closed-loop run. That'd also be fun, as you could try to come up with a table for advance and fuel amount and timing. (Eke every last thing out of it like a modern car engine.)
Ridiculous? Yeah. But definitely interesting and opportunities to learn some stuff.
--- Edit ---
Did a little bit of Google searching. Ford has a 1L Ecoboost as an option on some Fiesta models in the U.S. (surprised they had them here), so that's where to look for the appropriately small turbo.
chevy sprint turbo(3 cyl. 1.0l. engine)( super small IHI RHB32 turbo) 1985-1888
The turbo is too big. If you find a really small turbo you could probably get an increase in power and it would also help a lot of you used something like an air compressor to spool it up. But definitely give this another try - I love these videos
Well it's a 27 mm Turbo, the smallest turbo that I know of is 25 mm, so I figured it was pretty close, I mean it started spooling, so that means it will be able to make boost. I thought the fact that I pulled it off of a car and put it on this little engine was funny in itself.
@@WarpedYT Yeah that's a pretty small turbo and the fact this is even happening is already some Frankenstein-esque shenanigans. This is kinda dumb but what if you got two engines for one turbo? Now that would be crazy 😂
@@braedydunn7082 how about two turbos for one engine instead?
@@WarpedYT nah dude you didn't even look for one small enough for this brigs to spool up I'd consider this more click bait instead of actually trying
@@jrdn.lauren the only possible way for two to work on this small engine is if he got a smaller one to spool up the bigger one and we'll honesty I doubt 3.5 HP is enough to do that
Your insane... please don't stop! I love you stuff! It's awesome!
Thank you!!!
You need to install schock absorber on that thing! Also for engine it's a must air fuel ratio sensor and boost gauge
What a great video. Just the right balance of backyard buffoonery and actual science. And you also got straight to it without waffling on for 5 min. Quality. Subbed.
Thank you!
That dyno is brilliant! Super cool to see you do this! Im thinking maybe try replacing the spring scale with kitchen scale and have the brake push down to it so maybe the bouncing around stops.
Thank you, well I figured out that the bouncing around was actually coming from the variable resistance of the grain from the Machining of the disk. Once it's broke in it's fine now. Nice and smooth
Put smaller turbo check ebay for the smallest turbo available. Feed it with at least two bar of oil pressure with proper drain. Use an electric oil pump or something...
Dude didn't even try to look for the right sized turbo
Codeack101 Bear I mean he probably had the Mercedes Turbo on hand.
from a V8 and mounting it on a lawnmower XD
@Jake Heke why don't you?
Just sayin just because a turbo spools doesn't necessarily mean it's making usable boost. It can "make boost", but it may not be beneficial over an n/a setup
says "nothing crazy"... while fingering oil that looks like it has 100k miles on it... lol ^_^
LOL... Good point.... I'm still laughing and smiling ear to ear after reading that !
haha. loved the video!
Think he lost a finger doing it to
not a new motor? doesn't exotic fuel REALLY pollute the oil? that is why many Karters change oil at the end of each days run.... each race? $3/qt oil vs $150 (claim price without $120 billet flywheel) for motors that get "claimed" in 1-3 races. that wud upset me as I wud HAVE TO port the head and that is like 2-3 hours work, springs, ...
Hello, I'm Brazilian and I'm really enjoying your work, continue this series, we here in Brazil, motor lovers are very satisfied with these fantastic experiences. Hugs.
Boost Psi. run the rpm up and get some boost. Put a gauge on it.
Old briggs things run forever they're pretty badass it's pretty wild I enjoyed that video I'm a mechanic myself I like doing projects and s***
I got an old briggs that has an wobble on the crankshaft and it still runs perfectly
I made 112cc engine to reach 12HP and 18nm of torque with no turbo at all. Turbo is not very effective on really small engines, try to upgrade the ignition, camshaft and raise the compression ratio to the point it requires avgas to run.
plus bore up to higher bore size like 150cc or 175cc or higher and raise the compression ratio so it onl run on 90-110 octane fuel
Myself run 100cc moped race bike with around 12-14hp...full n.a mod.. big valve, big cam, 12:1cr and runs on pump gas 97ron (95 octane??)... Competing in 3 and 4hours kapcai endurance (moped endurance race)
@@AmirPomen I'm focusing more on the low rpm torque since I mostly use my moped in traffic and offroad. I won a tug of war competition with 150cc stock bike and once the passenger almost fell to the back during hard acceleration and push me forward when letting go off the gas (engine brake).
And people don't see it coming since it's just restored to it's original body, no weight reduction or visual mods. Also, I'm using a brand new stock exhaust, so it will roar on the carburettor intake on full throttle while not getting caught by the police during traffic checkpoints.
@@calvinlaudrensio415 haha nice one... Yep.. we here also did the same for our road bike...
Dude, I'm a software engineer... you're gonna make a motor-head out of me. These are really cool videos.
1971, Bonneville, a guy used an air injection smog pump from a 454 Chevy to blow into the carb of a 125 Honda twin...made 8 lbs of boost driven 1:1.
All I want for Christmas is a workshop like yours buddy! :)
Thank you, it took a long time for me to finally build my shop, I feel blessed every time I use my lift.
Hook a bottle of nos to it as well lol. Great video man.
Perhaps spool the turbo with an air compressor first as you're starting the engine, that may or may not work...
I thought about that too, but I think would stall/surge because the engine would never have enough flow throughput for it and would almost immediately cause detonation. A smaller turbo would be best, maybe like a MPS or small 4cyc turbo diesel turbo, the newer the better because it would be more efficient providing a better chance to spin up from an engine this small. Additionally that expansion chamber weirdness he has, leading down to a small pipe again that's on the back of the turbo wouldn't be doing it any favours with spool.
I was thinking the same
the turbo from a diesel smart car is perfect for that
We used a leaf blower to supercharge a HF 6.5hp on Methanol mix, and got a little over 14hp. Not that great when figure in the cost of running the gas blower too, but we had fun. We did have to use a dump gate due to the volume of air.
Love your videos,
Smiles.
You need AEM air fuel mixture sensor to rightly tune your briggs. With fuel mixture change and a turbo(if it builds boost) you should double the power
That's exactly what a guy who drives a 90's honda civic with a fart-can exhaust would say
With turbos always tune to the rich side without loosing HP and the mix will be right where it needs to be. This should work just fine as the testing is done in a small RPM range.
@Dave Micolichek Ok I have a RAM jet for you to tune ;)
@Dave Micolichek You are right, not enough info. A Ramjet rocket engine, hope you can run fast! :)
@Dave Micolichek Ram jets only run at high air speed so you would need to run really fast. Kidding a side given enough time a A/F ratio sensor is never needed on a ICE but its much quicker to do so. I would not waste the money on a A/F sensor for a turbo small engine that has a narrow rpm range. Should be easy to tune by eye and ear.
You are one smart dude, creative and innovative. My guess is go electronic on this turbo set up and find a way to get more velocity from the exhaust to spool the turbo. Keep going on this really cool.
Thank you !
Very intelligent guy indeed. I would have to say, a fuel injector, some sort of electric pump and a small fuel pressure regulator. Then of course as you mentioned some type of DFI unit to max the project. A tiny intercooler certainly would not hurt! Lol Great job Sir! A genius indeed!
I don't think he cares about the turbo being to big! I don't i loved the video just as is thanks WP.
@Dave Micolichek I dont care i liked the video.
Likely blowing out the spark. Not enough energy once you go into positive pressure. They make stronger coils for those engines and I think you will get what you are looking for. With nitro (as I mentioned before) the equation is simple, enough fuel till the engine chokes and enough spark to light dirt. Once you add boost, you need more sparky. Love the build!!! :-D
BTW draw through is perfectly fine for nitro like this. You need loads of fuel so you almost don't even need a carb lol. Just a hose in front of the turbo inlet and a flap in front of the inlet to limit the airflow. Nitro is a funny animal, and I do mean animal.
That's a good point.
I have made a few very high-compression engines work well even with stock ignition/coils and aged wires, just by reducing the spark gap.
I ran a high-compression Super Gas bike for three years to good result just by reducing gaps from .028" down to .024"!
Nitro doesn't like to stay mixed within the air stream, so may really limit how much fuel that can be fed in. You need a LOT(!) of liquid volume per unit air volume when running nitro. The upstream carb might be a problem because of this, and yes it is restricting the intake air by a lot.
Any slight improvement in air flow rate will show about double the expected improvement, since the added exhaust energy will further help the turbo along, so improving the carb (or improving the exhaust flow from the ehxaust valve to the turbo) may show a disproportionate improvement in power. Two-strokes also work this way because their exhaust system supercharges the engine from the exhaust side.
And another poster here was RIGHT ON about the intake manifold needing an elastic reservoir to allow pressurized air/fuel to build up unrestricted while the intake valve is closed! Adding a large "boost bottle" tee'd into the intake is needed here but becomes an explosion hazard that must be passively contained with a "blower blanket" strapped on.
Anyway, the apparent "shortcomings" of this experiment are actually an educational feature of this video that makes people think and discuss what it takes to actually achieve actual benefits in the real world.
An exhaust O2 sensor might not work on a setup like this because there will always be a ton of O2 in this engine's exhaust when running nitro and ESPECIALLY with a turbo added on.
Excellent video.
Absolutely a great science project and most people don't realize how much goes into the editing of the video and you did that very well sir.
Thanks I'm part of A.C.E.
Ive been turning wrenches for 40years and this is so cool
Hahaha so,
When the transparent head broke at first attempt and your reaction of ooohhhh, the video cut to an advert, FOR O'RILEY'S hahahaha
Perfect. I paused to share that, let me resume this great video!!!
Thanks WP!!
LOL Would of been even funnier if it was an ad for replacement heads :P
Lololol... That's great timing, I'm going to have to watch that. That's funny, thanks for sharing that
Shoulda used a smaller turbo. Will definitely make more power. Basically its like rob dahm putting a ship turbo in his rx7 is what you did with the turbo from the car
"Perfect running order" it's just surging like hell, but that's most likely the carb.
and he advanced the timing 30 degrees in the last video, so I'm not sure if he put the timing back to stock or not??
look at the throttle, he is doing that
@@Byefriendo I think you might be right actually, the motor does act like its about to die when it starts getting full throttle.
Wet vs dry boost; probably a very valid idea! As far as US production cars are concerned in the modern era, Studebaker used a carb box on their blown Golden Hawk in 1957, then starting in 1963, they used a special sealed AFB carb on their R2 engine, and reverted to the carb box with the higher boosted R3 and R5 engines. The latter ran over 200 MPH at Bonneville in 1964, all with a 5 liter engine. Pretty impressive for a stock bodied car at the time! They used basically box stock Paxton/McCulloch blowers. The R2 would make about 8 pounds of boost in bone stock condition, although some claimed more...but with all new parts I'm assuming. In a completely different situation, the 2 stroke Detroit Diesels all were supercharged, but later models offered turbos. In my own case, a Turbo 6V92 engine was speced at 350 HP at 1950 RPM. When the boost reached about 12 pounds, you could feel the difference. That was 552 cubic inches.
You deserved a lot more subscribers! And a good support sponsorship. Amazing job.
The turbo cant even properly spool up to make any considerable pressure. Which results in lower power than the previous state.
Yes the turbo is just a restriction until it gets into its operating range.
Put a Microsquirt stand-alone ECU on this engine. It will work perfect!! Run an AEM wide band with say like an OEM 20lb injector and actually tune it!
karon allen shit from the sound of that I’ll pay you to build me a twin turbo kart engine
love how you said about buying products that actually work irl
For real, in the past I've watched all sorts of videos on TH-cam oh, and I would buy the products just to find out that they suck, and the TH-camr just did it for the money, that made it suck twice as bad.
Thanks Shoenice, glad your burning fuels instead of drinking them nowadays
Put a smog pump on it. Works as a supercharger. My old shop teacher used one on his kids jr. dragster. Awesome video series!
Dude did you guys like the vid. Im looking for love button😂
Again that was amazing thanks a lot
To put a full sized turbo made for a car engine on a basically a lawn mower engine, and hope it produces significant boost, that a lot to hope for. Come on, man!? I do understand you don't want to go and buy a new turbo specific for this but still. At least get a smaller car turbo if you can.
I herd a spool up 😂
Indeed, he did say that. :) But spooling up means bollocks if you can't get enough exhaust pressure and turbine's rpms for the compressor to produce boost.
Well actually look it up. This is a 27 mm turbo, the smallest that I can find online is a 25 mm. Keep in mind that this is the primary turbocharger of the sequential setup on the SL 65. If you have ever heard a SL65 Idle, you will notice that you can hear the turbo whine in the exhaust even when the engine is at 600 RPM. This little turbo is basically producing boost at idle when on it's original application, then at about 2, 000 RPM the transition occurs into the bigger turbo which I believe is a 55 mm, I'll have to measure it but yeah, for me 2mm isn't anything a little more fuel and timing can't make up for. And for the record I actually went to buy that little turbo, but I thought it was way cooler to take a turbo from a car and modify it to fit this engine.
@@Questchaun it sure did.
I stand corrected! Thank you for your input. I dare to ask, why then didn't it created significant boost?? Not enough engine RPM range?? Nevermind, I honestly wouldn't know.
I got a briggs engine to run at 500rpm one time, it was barely still spinning
That was a LOT of work, ingenious fabrication, and excellent use of video equipment. Pure enjoyment! Love the SLOMO! I wish I could do stuff like that!
Wow man! What an amazing job you did there! The extremes that you go to show stuff in your videos is amazing and really appreciated!! Thanks for sharing all these amazing videos. I do appreciate them in many levels!
Really enjoy these videos however I think your measurement of horsepower is flawed. You are measureing horsepower at the peak observed torque. Engines almost never make peak horsepower at the rpm that peak torque is made. My diesel for instance makes peak torque (425lbft) at 1800rpm whereas peak horsepower is made at around 4200rpm where it is making significantly less torque. If one were to use your measurement method on this engine by snapshotting peak torque and calculating there you would only see 145hp. About half of the cars rated horsepower. I think to get better data points you need to devise a damping mechanism for your spring scale based dynamometer (look into cheap ebay motorcycle steering dampers) and try to get accurate torque measurements in something like 250-500rpm increments and plot the torque/calculater horsepower on a graph. This will give you a much better idea of any increase or decrease in performance.
Again, love these vids and keep it up. Just trying to help you out.
Yes, engines make peak torque at a lower RPM than peak horse power. The lines on the dyno graph cross at ,I think, I'm a little rusty, 5252 rpm. Due to how the maths works with how they are calculated. As I say, I'm a little rusty.
@@rationalmartian you are correct. The lines cross at 5252rpm because horsepower is calculated by: hp=(tq×rpm)5252
This engine will only rev to where he is measuring. If it would make X hp at 6000rpm, it would have gone there and he could have measured it. From what I saw the motor made more tq down low, but he measured where max RPM was. I could swear I saw some TQ numbers in the mid 20's on the vid at lower RPM which would have put this engine about 5hp and 8lb ft. Right in line with what it should do. These type of engines always make more tq than hp.
I don't know if he removed the governor, but I certainly hope so. If not, that's what's holding him back as it tends to limit these engines to about 4000rpm max with an operational rpm of about 3600. It's actually acting very much like it does still have the gov on there.
What did you expect? It's a 3hp engine and you put a comparably enormous turbo on it haha
marco latn 3 hp flathead.
Great video. I enjoyed every second of it. Try fuel injection?
Yes coming up next.
You, Sir, are phenomenal. Your skill of hand, dedication, and teaching is a joy to watch. I could lose days watching your videos. I am an engineer and you in a school would have them queuing out of the door. Thank you.
You go out of your way to do some very good testing, I'm liking the videos!
Of course the engine didn't blow up it's a Briggs
Spencer Clements as a service tech at a lawnmower place I've seen plenty of blown up Briggs. A few in a row that went out on Friday and came back Monday.
Say it again, I didn't hear you! 💪💪💪
@@John-nd7il. Anything can blow, I've popped many many briggs racing karts as a kid. On the other hand, briggs hold up crazy good against the shitboxes you get today
1 horsepower is also equivalent to 746 watts of electric power.
So, electric motor, variac, heat strip?
Somehow you have to get that turbo to spool up some more or maybe trying a smaller Turbo
I have a smaller turbo, and I'm planning on mounting it, but first I need to get this turbo to make boost, one way or another, I know it will almost for sure.
@@WarpedYT maybe trying some nitrous oxide to get the turbo to spool up my buddy used to use a little sneak a peek shot on his junior dragster maybe that will help
@@WarpedYT Turn it into a centrifugal super charger? Take the exhaust housing off and find a brushless motor that will produce enough RPM. Then youre force feeding it boost rather than hoping for the exhaust gas to have enough pressure.
Pleas do another one I’ve waited my whole life for a quality Briggs turbo video great video
awesome vid n thumbs up to that effort.....u need more hp?
Step 1 : return this turbo
2. lets start with the engine itself without the turbo
3. if gasoline gives u 3.1hp, then within technical limits u should get 9.3hp just changing the fuel to CH3NO2
4. CH3NO2 has stoich ratio of 1.7:1 which mean it needs 8 times more fuel pumped in per stroke than gasoline, which also means that if u have the cfm of the carb constant u need to atleast replace the main jet with a much larger jet.
5. we should all be more than happy if u get 8-9hp out of this setup. if u need more we can look in2 the compression ratio the engine is running.
6. shaving off the cylinder head will increase the CR n maybe 10BHP !
Now I can tell my wife that how my car run difference from others car! lol
I would like to mention I do believe that the horsepower was less on the Turbo System because the impeller was too heavy and actually became a slight restriction to the exhaust. I don't know if that's true but it's just a thought one thing that I had thought about is using a high volume of air discharged from something like a compressed air tank into the system that would give you a very cheap turbocharged but it would be very finite I don't know if that would be something that could be engineered to give it a forced induction
Yes you are correct, up to the point where the turbo spools and starts capturing heat energy it's just a restriction, but as soon as it gets up into its operating range the efficiency skyrockets. I'm not going to pretend that I didn't know that but I wanted to end episode there, that gives everybody a chance to put in their own opinions before the next episode. But yeah you hit it right on the money. Also with the compressed air I'm not sure, that might be something I can try out in the future but I know for sure it's going to have to be matched with the correct amount of fuel I was just going to start running lean almost immediately.
@@WarpedYT yes I know you are correct about the the fuel mixture going lean. It's cool to see these things on TH-cam I will subscribe to your page my father raised me in the shop we have had much fun with building high-speed Volkswagen Beetles dirt bikes and even motorcycles
Nothing makes your oil look like baby poop better then Nitro
Lol .... Good analogy
Same with ethanol.
well if there was a water get in your combustion chamber the oil will looks same but its more white
beacuse it happen in my motorbike
@@Etownstomp09 do you know why ethanol is doing this? Compared to gasoline the ethanol has a lower boiling point so it's going back into the engine by the PCV and not staying in the oil for a long time. So it's causing less dilution normally.
Probably one of the best video I've seen in the last six months. Amazing :) Well done !!
You’re awesome man! Yes people gonna comment that too many user errors and this and that of course won’t work but I see the video as just a dude having fun and not editing out stuff only to make you look perfect. Life isn’t meant to be so serious. Id love to kick it in your workshop, have a couple beers and create crazy random projects lol
Ha ! Exactly, that's what life is about, especially when you know how to build stuff, experiment learn and have fun doing it. Thanks 😘
I would like to see this setup with a better carb... its hard to force feed a dinky carb like that
Agreed
Have you considered twin-spark? Because the combustion chamber is odd shaped on a side valve engine, it might benefit from another spark plug to ignite the flame front more evenly thus giving a sharper kick - if it is possible to fit another one on the cylinder head.
Good efforts.. good content.
The turbo is COOL!
make a new video with smaller turbo and without wet system.pressurize carburetor and gasoline using electric pump.
What's that do
Try funnelling the exhaust down to about half the square area and aim it directly at the turbine. Make the nozzle go past the connecting flange so the velocity doesnt slow down before it hits the vanes. Its like comparing a leaf blower to an air nozzle with 100 psi. They put out about the same amount of cfm but the leaf blower could never spool up a turbo like an air nozzle could. Look up how steam turbines are built, specifically the nozzles. Keep it up. Great fun to watch and you're doing a great job. Thanks.
Great work actually going out and trying to turbo a little 3hp. Most people just scoff at the idea and say it won't build boost. If you really want to build usable horsepower, however, you will need a smaller turbo. You are limited to your exhaust pressure by bore/stroke and rpm. The suggested IHI RHB31 suggested by Cape Cod CNC just might do the trick if you concentrate on keeping the exhaust temps and hot side of the turbo as hot as possible and keep the exhaust velocity as high as possible. You want the exhaust to keep a high velocity until just before the wheel and as hot as possible to take advantage of the rapid expansion of gases to aid in spooling up the turbo. The heat will do as much or more to spin the wheel than the exhaust pressure will with that small engine and modest rpm range. If your really stuck on using that turbo you could run it very rich to where you are blowing raw fuel into the exhaust and then lean it out and hammer it. You need the fuel in the exhaust to ignite until its cherry red. The heat might be enough to actually spool the turbo enough to gain some horsepower. Its not ideal, but its very effective.
Measured by “my little horsepowers”
paint it red with flames, that makes everything faster and stronger:D
You have less power, because that turbo spools with more exhaust pressure, and because the limited RPM.
And laziness
When he was a kid, he invented the 2 story gravity hydro bong! And was safe about it, he used pressure gauges and a burst valve
Wow man, you really are an engine nut, what a great show, thanks
I like the " Can't lose" attitude. I like all the other creativity. Cut your grass with that engine, on a self propelled, next door to me........., I will flatten your "hard rubber", lawn mower tires. LOL ! I played with lawn mower engines in my teen years (Mid 1960s), that's 50+ years ago, (i'm 68). What the hell..., They're cutin down trees with top fuel Chain Saws. Lets get to work on some serious Lawn Care equipment. QUIT SLAKIN OFFF ! What about some Nitrous-Oxide (?), get us a Track Star to cut the grass... (a Black Guy) , "JERRY RICE" ! Touch down....... = 11.9 Horse power .
Well aren't you a progressive little fella'
7:59 V-TEC kicked in???
WP:"type in the comments how much hp you think will make!"
Me:(sees it says 3hp) like 28 at least....
My guess is 15hp on EFI and Nitro
7-9 efi and nitro if rpm is keeped the same
Hey I have a spare turbo. Let's twin turbo this Frankenstein machine and really put the fuel to it.
Man, this series of videos was A-FREAKIN-MA-ZING! I've been watching some of your videos, specially those about see thru engines, and this was THE best! Comparing between methacrylate header, stock header, nitro, nitro+turbo... I'd like to see even more! Maybe a smaller turbo would make better BHP?
Anyways, keep the good work, cheers! I just subscribed to your channel, don't wanna miss any videos like that :)
Made me laugh seeing the choice being so comparatively big, simply because it's just great to see somebody do something that nobody else would attempt. Love these videos, your ideas of adding an injection setup etc sounds great man, gotta be done, it's your duty to engineering and the internet!
That motor is waaaaay too small to turn that turbo effectively. Not enough gas flow to make anywhere near enough boost.
Yeah it takes more power to run that turbo than the turbo is making power
I´d like to see it running waaaaay faster
max Klassen You couldnt make that motor spin fast enough to get the gas flow for that turbo. The turbo is juat too big for that motor.
Daniel Beard the motor 'can' spin that fast. With a build kit it would do it reliably.
@@dylanzrim1011 No. You cannot. That motor would have to turn in excess of 12-15,000 rpm to get anywhere near the gas flow of the engine that the turbo was designed for.
It was designed for the exhaust flow and pulses of at least a 4cyl motor. For a 500cc single cylinder engine to have anywhere near the same exhaust properties as a 2000cc 4cyl, the single cylinder engine would have to be turning approximately 4x faster.
Daniel Beard it's from a compound set up yes? Meaning it is a low rev turbo.
He's not looking to make 30lb of boost. That motor could probably only take 5lb at most if lucky.
I'll admit it would still be a bit laggy
Dang :P 18 minutes gone 0.O Watching slomo's makes my time goes by fast!
When the turbo is half the size of the engine...
TNAYT the world of rotary....
Wow this was an awesome video, had me on the edge of the chair all the way through!
Great stuff. Keep on trying, that's secret to success. Really enjoyed your show.
If you had used a Tecumseh engine it would have blown it up long time ago. Briggs in my experience are far better engines.
@Dave Micolichek Yes mostly because the Briggs had half the power. On top end a Tecumseh 3 horse would out run a Briggs 5 horse. I ran a 3 horse Tec with a cam, shaved head, 104 octane fuel, no governor with cranked timing on a stock rod never a problem.
@Dave Micolichek Reply went up in smoke so one more time. Engine was all stock parts less a cigar muffler. The head was shaved, bumped ignition timing and no governor. The Tecumseh engines made better power do to adjustable ignition timing and better carburation. I ran my 3 hp Tec wound tight but never with out a good load on it. I would guess the lack of load is what killed the ones you saw back in the day.
Tecumseh engines run forever if you keep oil in them.
Dave Micolichek even though I like Tecumseh and Briggs, I really like the harbor freight predators and Honda
@Dave Micolichek The magneto rotated CW and CCW.
Use ebay electric turbo!!!!
I really like the wet system idea because it's easy to use regular carbs, also the fuel cools and lubricates the turbo
Smart man wish I had that ingenuity
Thank you
Dissect the turbo to convert to belt drive supercharger. You could easily adjust ratio that way. Grate videos dude, please keep it up.