S4 E14. We modify the AMR500 supercharger drive system to generate more boost on the kubota diesel.
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- เผยแพร่เมื่อ 25 ก.ค. 2024
- Season 4 Episode 14. Jimbo take the 719cc Kubota diesel powered Honda Insight to the next level by increasing the boost once again, Will more boost make this lightweight honda faster? the answer may surprise you.... tune in and find out
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Jimbo
Robot Cantina
207 S. Sedgwick Ave
P.O. Box 28
Haven KS, 67543 - ยานยนต์และพาหนะ
"Shut up i know what im doing." -others
"You can do what you want with your supercharged Kubota diesel powered Honda Insight project; this is how im doing it on mine"-Jimbo
I love the polite shade, Jimbo!😂😅😂
Came for the jingle; stayed for the AMR500 supercharged Kubota diesel and doohickeys.
I came for gooder.
In Europe VW has CAVD 1.4 TSI twin charged engine , was made from around 2005 till 2017, Turbo charged and Super charged on the same engine , develops around 160 HP, witch has magnetic clutch to disengage supercharger and second throttle body in parallel with supercharger to regulate pressure , supercharger can make up to 1.5 bar and turbocharger 1.2 bar, supercharger will be disengage around 3500 - 4000 rpm and turbo charger will take over
It was very funny to drive.👍
I have seen the small Deisel powered cars in Europe and what a injustice it is they aren’t allowed in the States .Government is why
Like the Lancia in group B lol
They did the same thing on Mercedes Benz cars here in America. I think it was the 2000 C230 Kompressor.
Great concept, could get this engine in the Golf Gt and the Polo GTI, Unfortunately its one of the worst TSI engines ever produced and didnt last long at all, too much costcutting and downsizing...
We run aircraft engines lean all the time, its called Lean of Peak (LOP). It's the most efficient operating point, but you have to transition from rich (continue to lean) through peak EGT which has to be done carefully (quickly) else you can damage the engine. EGTs and CHTs both fall off in that realm. We don't do it for high power settings though, that's always full rich for detonation avoidance. The take away is a truly lean setting is actually cooler and more efficient, that's why that excess boost brings down Temps in diesel, your staying in the lean of Peak realm. Diesel thermodynamics aren't so far off from Gasoline as folks think, boils down to mixtures mostly
Diesel isn't like gasoline, the EGTs get high from rich running not lean.
@@hendo337 You're proving the point of surf4lukes last line nicely.
@@hendo337 the difference is diesels are always running lean. If you're running rich in a diesel you're just gonna get a bunch of black smoke. And if you go far enough the egts will start to go down again instead of going up. It just takes a ton of extra fuel that you're wasting.
@@hendo337 If you actually understood what the OP said, you would realize you are saying the same thing though the OP is much smarter.
@@hendo337 not quite true, its not "rich" yet. Diesel egt does the same as petrol. You just start in very diffrent places. A petrol engine won't run at anything leaner than 18 to 1. It's chemically correct at 14.7 to 1
Peak egt is around 14.2 to 1.
It makes the most power at 13 to 1. It blows black smoke past 10 to 1
A diesel will run at 30 + to 1.
It will run efficiently around 28 - 25 to 1.
It will run hard 25 - 20 to 1. Getting a bit smokey.
It will run harder at 18 to 1. Lower quality engines will start to shed parts. Starting to roll coal.
15 to 1. Runs so hard you will have to have a beefy engine to handle the forces. Also a gas mask, and a way to see through thick black soot.
14 to 1. Peak egt. Everything past the exhaust manifold melted two steps ago anyway. But it still isn't quite chemically "rich".
Diesels use turbos in an effort to burn the required amount of fuel at the highest avaliable Air fuel ratio, to lower soot. Its essentially soot burning in the exhaust gasses that cause the egts to get to critical levels before you get to the fuels chemically correct, or full power air fuel ratios.
An amateur may have built this car, but watching its development has been more entertaining than most vehicles built by professionals.
Jimbo was an engineer for oems in a past life. He's far from an amateur
and is most likely the most modified vehicle on youtube
Jimbo! 2 things buddy:
a). That boost hose is nice and cheap but any amount of heat will cause it to deform, twist and eventually stop allowing airflow (has happened to me)
b). A restrictor pill inline on that hose will dampen the needle on that gauge and smooth out the reading :)
Looks like regular reinforced silicone hose, if so it;s very temperature resistant. If it was deforming in your install then either you had it installed with a twist/excessive bend or it was somehow exposed to manifold vacuum (they collapse under vacuum very easily).
they are somewhat sturdier than many anticipate
Now that I've watched the weekly boost update, my Sunday can officially begin.
The Toyota Previa minivans from the 90s, the weird spaceship looking ones with a front mid mounted I4 with rwd had an optional supercharger that had a clutch on it so it to activate and deactivate as it was needed.
A lot of Benzes in the 2000s also had clutched superchargers!
omg i forgot they had superchargers on the previas. I want one even more now. If the body is terrible I'll just cut it off and ride my skateboard car with a motorcycle helmet.
@@confuseatronicait’s such a shame the supercharged ones only came in automatic, you could never get a top trim previa (supercharged) with the manual offered in the lower models :(
Yes, the “Toyota Guinea Pig” van. Had a ride in one briefly about thirty years ago.
@@frazierstensby4358that is super gay, probably offered it that way assuming they didn’t have a manual that could handle someone who would drive it like a race car
1440 minutes really got me chuckling at the end.
It accelerates almost as fast as a Soviet Lada I've owned back in the 90s!
So much work when simple vacuum actuated 'blow off valves' exist. Fascinating to watch someone modify a car who isn't deep into the scene and therefore knowledgeable about these parts.
My opinion would be just to put the turbo back on it keep a consistent boost on the supercharger and just twin charge it
To get all that instant power right off boost, and then as the RPM climbs a turbo kick in and give you even MOAR.
Great Vid Jimbo, I am curious if anyone else miss the Garden Gnomes?
More Gooder is a lot Better than Good we use that estimation at a gravel pit I work at in South dakota
I really love the lpg or cng supplement for diesels. It’s an easy way to increase fueling without messing with anything else.
OEMs are considering CNG diesel injection. It significantly reduces emissions
Less Soot? (Soot is fine on Antique trains. Love them Alcos!)
Maybe try some propane injection as well for the fun of it i also :) might add a little bit of power. I know they used them on old big rigs to boost power in the past.
Loving this series of videos, keep up the great work.
I really love the lpg or cng supplement for diesels. It’s an easy way to increase fueling without messing with anything else.
I second this. Propane Injection seems to have fallen out of favor but it definitely does work.
I've been asking for it for a long time. It also helps to clean the exhaust.
Your videos are the best Sunday night right before work on Monday :). Thanks from Australia 🇦🇺
Love the ingenuity with the homemade crank pulley! This project is getting crazier by the minute, but in a good way. Can't wait to see how the boost management with the 3D printed doohickey turns out. Also, 50 psi on that little engine? You're one wild dude!
That was quite a lot of effort for not a huge gain, but it's still progress. And yes, I realise this is just a stepping stone to the next modification.
Like everything, engine modification for a specific goal (economy, performance, outright power, whatever that goal may be) like everything has a law of diminishing return. I'm reminded of the old motorsport adage "speed costs money, how fast do you want to go?" The trick I guess is find the sweet spot where both the goal and the cost objectives are both realised, within the bounds of sense. This marvellous little project hasn't begun costing silly amounts, and I suspect it never will, because the priority is to do it as cheaply as possible.
As many have already stated, this series of videos is more interesting that most of the big budget builds. I'm fascinated to see what Jim is going to do next. It's bloody brilliant.
I think it would be interesting and probably work quite well if you kept this modest supercharger boost than added the turbo system so you won't have the lag, depending how well it works and how well you can deal with the wastegate, it might be best to get an electronic wastegate system so you will have total control of your boost, that way youncan tune it to come on strong down low, then baby soft it through the TQ spike to protect the engine then feed in the power upstairs a little more to make it perky while still safe.
If the intake valves float due to boost they are just improving the cam timing.
Poppet valves are check valves, so they will close themselves when cylinder pressure exceeds intake pressure, unless held open by the spring or cam.
valve float due to high revs is a different story
indeed... I was sitting on limiter at 10,500rpm and could literally hear my valvetrain slowly blowup LOL
When you're done with this project, please please please do a massive overdrive to see the absolute max possible boost. I know it means increasing fuel use, but it would still be cool to see.
Or maybe some kind of compound forced induction (1x super 1x turbo). Gotta find the limit where it blows the engine!
Yet another great episode. I love the whole idea of taking a small diesel and developing it into the best one can do without spending tons of dollars. Jimbo, if you are not a mechanic and machinist, etc, then you are the smartest auto mechanic and best equipt machining dummy that we all know. Keep your insanity going!👍👍
The aw10 Toyota mr2 with its 4agze uses an electric clutch just like a aircon system, was an excellent lil system, I can’t recall it in mad max, but it’s possible they depicted it differently and in an unrealistic way, but the mr2 system most definitely worked.
The Toyota Previa and MR2 both had magnetic clutches on their superchargers.
Thanks for including the metric conversion for hours!
50PSI? Thatd turn that thing from a Kubota to a Kuboom. lol Another great video! I'm loving this project.
Woke up and came straight here!
And missed number 1 by 20 places. 🤣🤣🤣🤣🤣
i was literally also thinking about a small CVT for variable boost on the supercharger. Telepathic viewers on this channel ha
It's weird, but I really like the way the hoses pulse on this engine. LOL It's like it has a heartbeat. :)
we have build compound setup with using ac clutch on small supercharger with program wich automatically turns it of after boost goes over 0.5 bar, after that only turbocharger has been building pressure.
it worked really well in small engine 👍
Love to see these projects still going and evolving! Keep it up, bro! 😎
Another gem of a video , as a boost control you could run a throttle body in the supercharger air intake track , this would do what your boost control is doing but even more efficiently as it can’t pump air it doesn’t have . Hook it in-line with your current throttle cable and the ratios should just about manage themselves , air on demand ….
Also a small expansion chamber in the boost gauge line with some foam in it will stop that gauge oscillation .
I've been on the lookout for a road legal small displacement engine vehicle ever since you started messing around with the AMR stoopachargers. Unfortunately small econoboxes rot out or get sold immediately once they're in my price range. Happy to get my fix here👍
Put one on a small displacement motorcycle. I have had some daydreams about trying an AMR500 on something like a KTM Duke 390 or Husqvarna Svartpillen 401 accept instead of driving the blower with the engine, my idea was to have it driven by the front wheel mounted on the front forks, then passed through a flexible pipe to the engine, at lower speeds in lower gears those bikes pull quite well, they show their lack of power once the speeds increase, the idea was to gear them up with a different front sprocket that raises the speed at redline in the higher gears and once the bike is moving that fast the front wheel is spinning the blower pushing in boost to increase the top end speed and power of the bike.
@7eis - I’ve been thinking along those lines. I’ve got a 74 Beetle project that’s stalled out at the moment. The Predator V twin and this Kubota are more interesting. A 50s or 60s Fiat 500 or 600 would be a fun car to do engine swaps. Lighter and possibly better aero than the Renault 10.
@@hendo337 I like the idea but I also know myself well enough to know I'd get in more trouble than big hoss riding his hawg through a patch of grass clibbins' if I had a fast bike
and now a Honda Insight "Interceptor", ready to the movie mad max 😁
Love how you put the caption giving minutes for the time you gave to edit and upload the video :)
Fell perfectly in the gap between the weekly grocery run & time to leave for work. 😁
A "reverse" throttle body is a very cheap simple way of venting boost at part throttle, and is infact, exactly how volkswagen did it on g40's and g60's. Rig up a small throttle body where the valve is now, and rig it to close as you open the throttle. Simples.
Love this project. ❤
The project gets more and more interesting, I like your gizmo with the microswitch can't wait to see it installed and thanks for converting days to metric 1440 minutes, helps us metric people.
If you relief the compressed air out from boost pipe, then the needed power to run the compressor goes up. Cause for this is the liters of air (or cfm) the compressor moves. Less resistance -> more cfm -> needs more power. Thats why normally mechanical compressors never use this style of boost control.
Good job Jimbo! One step at a time this Kubota supercharged diesel Honda Insight is becoming engineering marvel.
Thank you for the video!
Curious to see if CVT will be of any benefit in the future.
One more day! Excited to see whats in store 😊
Always a fascinating project. The side effect is you learn some of the challenges vehicle designers have to deal with.
This project is only getting more interesting. Thank you for bringing us along on the ride. Been following you since the beginning of the Insight project. Such great work.
I like that you convert in to metric units. Using bar, it's easy to get a grasp of how much more power the engine could make (in theory). 1 bar = double the amount of air, 2 bar = three times the amount of air, and so on.
Yeah. Bar isn’t exactly metric though. Bar is barometric pressure, which can be converted to metric(kg/cm2),or standard(lbs/in2), or anything.
@@bobirving6052 thank you :)
@@bobirving6052,Well - 1bar can be converted to 1 kg/cm². Not really necessary though.
I have the conversion formula if you want it.😉
Very innovative with the solenoid blow off valve! One thing though:
When you de-energize the valve, the collapsing magnetic field induces a very high transient voltage spike which could damage your sensitive electronics you have on board. I noticed your green lights flicker when you were demonstrating it in your video. Simply add a snubber diode near your valve to eliminate this. It shorts out that voltage spike without impeding any functionality. Wire the diode reverse bias of the supply.. so the negative (cathode) goes on the positive 12v wire and positive (anode) on the ground.
Thanks Jimbo, like the methodology behind this madness ;)
👍💪✌
Your videos are the gooderest. Keep up the great work!!!
This has got to be one of the best project channels on youtube. I've been watching since the gas single cylinder vids and you guys never stop blowing me away
Many thanks for your video editing! It's annoying with other TH-camrs they spend a lot of time with pressure washing or doing other mundane stuff, 👍
Thing sounds like a tiny 2 stroke Detroit diesel. I love it
Good stuff Jimbo, thanks for sharing your videos. 👍
It is faster then that hayabusa thing. Great work Jimbo!
love these videos. keep em coming guys!
A complicated but interesting idea would be using a Throttle Position Sensor to manage boost, blow off valve is adjusted by how much throttle you give it, keeping boost as close to ideal as possible. Although my knowledge on diesels is minimal. Love the content! Been watching since the Saturn.
Its funny how I'm beginning to pronounce that white metal stuff the same way as the American people do, after watching these videos, "A-loominim" in my country we normally say "L-U-minium" 😅, sorry thanks so much for sharing your great experiments and experiences, I'm always looking forward for your show and share with my awesome mechanic brother, who also has a great workshop.
Hey you did my suggestion of the cvt drive. So cool. Great video as always
Starting to look like the Batmobile on the inside of that car! 🤣
I look forward to your videos every Sunday morning while I have my coffee. I appreciate your analytical approach and all the data you collect for your projects. My current project is a Honda Acty truck, one of those little kei trucks from Japan. It has a 660cc 3 cylinder gas engine, but would be fun to convert to the 720cc Kubota diesel... if I could figure out how to get it to lay flat under the bed! (Yeah, my truck is basically a mid-engine AWD supercar)
For the variable speed clutch idea, you’re just trying to reinvent the VS-57 super charger that came on Packard and Hudson I8 motors. The supercharger had bearings that do the same job as the CVT, but they just put a spring loaded tension arm on the belt to get around the varying belt length.
Most entertaining and engaging series on TH-cam.
Exhausting.
@@anthonyrstrawbridge wdym
An electric PTO clutch from a lawnmower ought to work nicely for a small supercharger like that. That way you could just have a switch on the accelerator activating the charger when needed and not have to run it at all under other circumstances than acceleration and avoid the parasitic drag from running it when it's not needed.
Loving the series, as always!
Maybe when current plans are done, you could try an LPG conversion? I'm told feeding the liquid phase into the injectors works really well- but I've never tried it.
Throttle body for your blow off valve. You could connect it to your accelerator to be closed at full and open at idle. You could probably get a cheap one from a old chainsaw. love the project
Add an intercooler to raise charge air density which means you can add more fuel for a given boost level. On the exhaust side, post the exhaust manifold to match the gasket, open up the collector to 1 mm smaller than exhaust pipe. The exhaust pipe should be as long as possible before any bends to it. The bend should be made on a mandrel to ensure a smooth flow.
Jolly good work as always Jimbo 👍
JIMBO YOU BROKE THE TRADITION!! you made an episode 13 this season 😭😭😭
Man I just love this build and idk y , it's different, original , and just rad ... and with how smart u are with tec jimbo , I'm surprised u have not set up a arduino to control a bunch that stuff for ya ... I run a arduino standalone on my miata and it's around 400hp running 30 psi and sofar it takes my absolute thrashing so I have full faith in the arduino to do atleast basics controls were I have one run a whole car ...idk food for thought jimbo ... peace and love bro keep it rad stay safe and build on l8z famz and keep having fun
Hey Jimbo
I hope your in good health!
Looking forward to your next video
YOU DID IT!!!!! YOU MADE THE VARIABLE BOOST SUPERCHARGER DRIVEN BY A CVT!!!!!!! THANKYOU!!!!!!!!!!!
i love what you guys do
Dam you're smart Jimbo you always build your own doohickeys. Keep up the great work Cheers from Canada 🍺.
Wow 1 observation and 1 suggestion ( I know I was not the only person) that I put forward taken into consideration, I think I'll go have a lay down 😔 . I would love to see a road trip when you get things to your satisfaction. Great stuff as usual 👍🇬🇧🇺🇲
I still say a variable jackshaft pulley from a lawnmower to allow any ratio like I'm using is probably the best way to go. You can mount it higher on the motor so your belts can be in an upside down v and easily clear all your mounts. A spring loaded tensioner on the engine side belt and a manually adjustable tensioner on the supercharger side. This lawnmower "transmission" pulley from a variable speed riding lawnmower is cheap and readily available.
Interesting result. Try heavier boots for air fuel adjustment!!.
Well done Jimbo! 😎
The throttle operated slide switch got me thinking. You might consider a throttle actuated tapered needle and seat assembly. Increasing throttle moves the needle closer to the seat and reduces bypass. It would be mechanically simple with bypass air inversely proportional to throttle position.
Thanks for another video, Jimbo! It was more gooder. 👍
I love it! you basically installed a scramble button in a 722cc Diesel Insight.
At some point can we get a recap of all the fastest 0-50/55/60 times for the cars to see how they stack up to each other? I want to say 20 seconds is on the quicker side of things.
In terms of an electromagnetic clutch to turn the supercharger on and off it’s very realistic! The Mercedes m111k, m112k, and m113k engines all have them factory installed!
They all have bypass throttle bodies/valves in the intake tract to bypass when the supercharger when it’s disengaged.
Love the channel, thank you
COOL. May the boost be with you.
Absolutely fantastic episode
Maybe you can connect the switch to the throttle pedal,so it closes at full throttle 😉
My idea too!
that's what I was thinking too
Dude! That CV idea is brilliant! Might be cool idea for a future project car build! Mabye not the Honda,but a future car build or past car build that you havent finished
Happy coffee and Cantina....
The stock supercharger on a 2000 Mercedes C230 kompressor uses an AC style, clutch on it to turn it on and off
One eyebrow raised . . "Fascinating, Jim . . " 😊
Another fun filled adventure from the best shade tree mechanics on TH-cam! Give them a like everyone, let's get them to a million viewers!
I have an amr500 that came with a clutched serpentine pulley like found on an air conditioner pump. They make an adjustable pulley that came on older furnace blowers that could be an option. If there were more room you could put a moveable jack shaft with a variable pulley like an old montgomery ward garden tractor then you could adjust the boost on the fly.
I'm early in the video. But it looks like a gy6 50 variator with an 85mm drive face. There are other models that can rise to 99mm which allows for more travel for the cvt which can have more variation and a longer range than the 118mm rear pulley and 85mm pulley that the gy6 50 comes with.
Love your content jimbo :)
I would twin charge the engine using the turbo set up from the Saturn
This is the world's coolest Honda Insight.
Yet another excellent video. I look forward to see what you have in mind for automatically adjusting the fuel rack and boost. Knowing your experience with electronics and programming, I'm guessing an Arduino and some servos are involved. ;)
The Mercedes SLK 2.3 kompreesor had a clutch on it's supercharger. I had a compressor bypass valve also.
Awesome vanity plate Jimbo!
Yeaaaa! Happy Sunday everyone! Grab your coffee and lets enjoy some Cantina! :)
It's Sunday, I'm late, but I'm here for boost .... gooder stuff, thingys and dohickeys.
Interesting as usual! Cant wait till next week cycle.... lol
Been waiting for this video for a week lol!
Good stuff Jimbo!
Idea for next season! Grab a smart-car or some other similar micro car and do a "49cc challenge"
many areas allow 49cc vehicles on roadways uninsured/unplated, obviously for your testing you'll be doing both, but would love to see what extreme weight savings and performance mods can be done to a 49cc to make it a driveable car 😂😂 See the Peel p50 as an early example from the 1960s!