670cc Dragster Returns to the Track with New BIG Turbo Setup!
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- เผยแพร่เมื่อ 25 ต.ค. 2022
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We installed a new larger turbo on our Predator 670 dragster and we're at the drag strip for the first time testing it! Our new turbocharger is slightly larger, meaning it can potentially flow more air, but more importantly this turbocharger is clockable, meaning our new turbo piping is much shorter than the original setup, which gives us better throttle response and less boost lag. The waste gate boost pressure on this turbo is less than the original one, so we didn't make as much boost and the dragster slowed down by 10mph! Fortunately, our carb tuning was a bit better, so our 60 foot time decreased substantially. Next time we'll be installing weights for higher stall on our CVT, fixing up or replacing our carburetor, and upping the boost pressure!
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"99s?! Thats almost an eighth of an inch!" *in mr sams voice*
I tought im watching Cleetus Mcfarland when the 99 jets came up lol
Holy cow Sam would be losing his mind seeing 99s on there 😂
Nintee-ninees??
I was thinking the same thing 😅
99's that's a eighth of a inch :)
That things got 99s in it
I was thinking the same thing
This would be perfect for a carsandcameras and robotcantina Collab. That fella knows how to cobble together an EFI system.
I totally agree ..Robot catina knows his stuff.
99! That's almost an 1/8th inch....Got to love Mr. Sam
Guys consider doing a collab with the boostedboiz and put the drag rail on a fueltech ecu and convert it to efi. They did the same on a lifan 200cc shopping go kart and now it does wheelies lol
I would look into a microsquirt/megasquirt myself, then you can control your fuel/timing and most likely get away with pump/race or e85 for fuel. Love the drag rail series!
Boosted Boiz just converted their turbo shopping cart to a FuelTech and had great success setting it up, strongly suggest you guys convert this to EFI as well even if it's not FuelTech (they had some other EFI controller previously)
This is not a loss or a failure. This is an education. You learned something. Keep going!
Every day's a school day, if you're doing it right..
I like that you guys arent just throwing a bigger engine on it and calling it a day. Seeing you guys get the most out of that lawnmower engine is super fun to watch.
I just love proving the “that engine will never go fast!” Comments wrong. Plus it sounds awesome😂
well i wouldn't call a V TWIN 670cc engine a lawnmower engine. Agricultural engine fits better
I know, but I still think a shovelhead or something would be sick on this thing.
@@CarsandCameras until it hits triple digit speeds, it's slow.
@@AL4N. it’s very slow for being 670cc and turbocharged lol
If you guys would like to check iv called every issue before you've had it. You need brass floats (easy to make). When Charles moved the wastegate he took all the preload out hence the low boost they all come at 15 psi more or less. If you take your other turbo and measure the mount to the flapper it's longer than this one. You can also very easily check pop off pressure with a leak down tester or air pressure regulator like for painting and a gauge. It should crack at 13 fully open by 15.5. that tiny hole Ike drilled won't change boost on that tiny turbo a 3way t with one open to atmosphere will give you about 18-19psi unhooked it will get to 20-22psi. I add a nipple to the bottom for actual control. Both hooked up will make 28-30 psi and just the bottom I get about 50psi before the wastegate blows itself open. For more you need a bigger turbine housing and the compressor wheel would do good to have the biggest exduser you can fit so it's not trying to melt itself. Once you get it running okay and get the boost up to launch use the foot brake some but be mindful your heating the clutch and belt. This will give you some boost off the line. Your catch can should really vent to the air filter if you can help it. Makes the crankcase pressure way lower helps rings seal make more power and not leak so much. I personally use e85 for all of the reasons methanol is a pain. Meth is better yes but not by enough to justify it to me and I'm now compound and boost is safely past 60psi just chill the fuel with dry ice and youl be fine on intake temps. I think your ignition is fine for your goals tbh but I'd invest in a real carb. I'm in Wilmington if you guys would like some parts I mights have a carb that would work for you but I'd go hsr all day on this. As for jetting if you bring the whole thing I have every size you could need and between me and my dad were some of the best motorcycle carb guys around so some quick jetting wouldn't be hard maybe an hr. Now one thing I am very concerned about is ignition timing control.. do you have any? Even a simple cdi you set a curve to would be better than nothing.
Yeeehaaaw, get em boys! Go for 6's like Cleetus, 1/8th mile instead of 1/4 but hey, it's a lawnmower motor, gotta keep it realistic 🦅🦅
To me the dragster is probably most exciting thing you guys have done in quite a while. I'm sitting on the edge of my seat to see the next installment of what's going on with the dragster. Really good stuff!!👍
Same here it's crazy when you think about it people put thousands you know 20 30 40,000 in there car, and a go cart is beating them running 7's 😂😂😂
I agree I definitely love this the best
@@Piunti_302 This thing is gonna hit a 6 if it gets the boost where it can be and a little more stall speed on the converter.
@@WyFoster oh yeaaaa for sure!! Prolly even low to mid 6's
Agreed I love this project
For future reference, instead of drilling holes in the vacuum line which could potentially rip open larger and let the boost run away, add a vacuum "T" to the line. You can experiment with "T" and "Y" fittings and if you wanted a bit of adjustability in between you can add a line to the vent part of the "T" with a little fuel shutoff to dial it in. Just a suggestion I havent seen in the comments. The main thing is you don't want that boost line to the wastegate to fail or it will just go kill mode and send all the horse-torques to it.
You beat me to it. Awesome suggestion.
Yes, the general rule in HVAC is you add 60 feet of duct when you T it. This has to work the same.
You're basically building a manual boost controller
@@limprooster3253 exactly.
@@jdshanahan4215 So why not just put a T in it with a ball valve threaded into it? I know that's the caveman way of doing it but all we are really going here is controlled boost leak. A couple of passes and you'd have that valve where you want it.
I'm so glad you guys revived the drag rail project! This is good stuff!
Guys, try a small holley two barrel. I know it may sound a bit large, but a 350 two barrel may be your ticket. especially since you are drawing through. give you much better fuel control and more reserve in the bowl. and a pump shot for launch.
Sam the man would love seeing that 99 in use.
Another idea. Should use a megaquirt ECU . Well a microsquirt and single injector. You'd get so much further and have control. A launch co troll etc would all be beneficial too
Boosted Bois put a Fuel Tech on there shopping cart, i thought that would be the best, It would have a 2 step to build boost, and they could add a dependent wastegate
@@lylehausser exactly said the same thing last video would be phenomenally better than the ole socks 🤣
@@lylehausser I utilize fueltech and have for years. It was nice to see them switch a long time ago. The microsquirt is for this type of setup. (low cylinder count and retrofit setups or boosted bike application.). So figured it be a good idea
The drag rail needs efi. We have the technology we just need to convince them its what they need. The carb is cool but efi is just the way direct or port its just a much easier way to do what they are trying to do!
Yeah, microsquirt will work fine also allows you to do stuff like staged injectors so you can use a couple of smaller injectors to get more flow.
Hey brother man. You gotta heat them tires UP IN THE WATERBOX! The reving right off the bat, is your tires breaking loose with wheel spin. I know that you guys have already heard the phrase, " SPINNING AIN'T WINNING. " Every second you spin, you're loosing seconds off of your ET's, 60 foot time, and your 120 foot time.
Ya'll fellows keep up the awesome work and, don't worry, Ya'll gonna get to them mid 6's.
"99’s!? That’s almost an eighth of an inch!"
Mr. Sam
Two steps forward, one step back!
Y'all will get there soon, the rail is godly boys!
Can you make a video on what motors can hook up to turbos for a go kart
Hey I luv everything yal do ..from work n on everything yal can to the editing an camera work ..yal kill it everyday ..I have you tube channel also I would love to come an interview u ..an Ride an an fixn stuff .. let's go
It's been like this for three years going on four years
When you run alky, you need a good carb that will take the corrosive alky and nitro without dissolving. All cheap China carbs are made of pot metal, not actual aluminum, so they will not deal with alky. Time for a Lectron flat slide instead of cheap trash. Also, you never add nitro without having it dialed in before you use it. You still shouldn’t be running nitro because you haven’t figured out what you are doing yet. And, when you aren’t running nitro, you can run M5, which has oils and additives to keep it from being corrosive. Once you get it dialed in on M5, then you start adding small amounts of nitro and tuning it as you go.
It's time for a bigger better carburetor! Let's go boys! I'm proud of you guys
Or maybe efi? Turbos and carbs seem pretty archaic. It's bad when there a certain TH-cam shopping cart that's on motec going faster then a drag rail. 😂
@@skeetermccleeter it’s on a fuel tech if you’re referring to the boosted boyz
Yeeaa or a street bike motor gsx600. ..mby cb750
@@skeetermccleeter efi would probably be ideal, but the price is a killer. Maybe they could do like cut out metal Keychains in the shape of a turbo and sell em to buy a efi kit.
@@theworstgamervr price a killer? Efi doesn't have to be expensive, an speeduino could easily run this and can be had for under 150dollars...
I'll never forget the $50 go kart videos and how I found you guys. So glad to see you're still great friends, and that you have over a million subscribers now, keep being you 🙏🙏
"a 99?! thats an 1/8th of an inch!" -Sam 2022
I don't know if you already have one but this project seems like it would benefit greatly from an AFR gauge. Would take a lot of the guess work out and allow you guys to really dial in the tuning
Yes. This.
I was about to comment the same thing. AFR gauge would be so much better. More data, less guess.
i dont know if afr gauges will even work. poisoning, and it not being able to go that rich and all...
@@frigglebiscuit7484 if it's a wideband one should be fine. Seen some in drag racing bikes here in Brazil.
Exhaust gas temp gauge that's how you tune alcohol
A belly pan under the engine could help catch any lost oil if you need it. I knew that Methanol would be an issue but never did I think this fast. Alcohol and Methanol "Eat Parts". Anything plastic/aluminum or rubber is at risk as far as I know. You got this.
The nitro is worse than the methanol. And they shouldn’t even have touched the nitro until they have it dialed in on straight methanol. It’s just like trying to run nitrous with a bad tune, bad stuff is gonna happen. Then add in the fact that they are running cheap Chinese carbs that aren’t even made from actual aluminum, just cheap pot metal, they have set themselves up for failure. They need to ditch the nitro methanol and go with M5. It’s methanol with 5% corrosion inhibitors and top end lube. Once they get dialed in on that, then start adding nitro in small percentages. I really don’t think this engine will handle much more than 20ish percent nitro when it’s tuned right because the stuff is violent. Right now, running the nitro is just making it even harder for them to get right. It’s like they looked up some info on running nitro, then decided that they would do everything you are told not to do.
And there is a huge no-no that I’m surprised they weren’t banned from the track for, or even arrested for. Using a fuel pump that isn’t rated for nitro is not just dangerous, it’s a crime. It’s an actual ATF law because of threat of explosion. By using nitro in a pump that wasn’t rated for it, they created an illegal explosive device. Just connecting a fuel pump not rated for nitro to a tank that has ever contained nitro is a felony. John Force tells a story about one of his crew members getting 25 years in a federal pen just for trying to use one to transfer fuel from a drum to a gas can. He never got a battery on it before he was stopped, but he still got 25 years.
Guys, something to bare in mind. Methanol Eats normal rubber. Any rubber parts of that fuel system will need replacing regularly. Kalrez rubber is a good substitute material. It's expensive but worth it in the long run as it lasts a lot longer.
I suggest getting a standalone controller for your ignition, this will allow u to set an rpm limit. This shouldn’t hurt your boost because your air is controlled by the carburetor and as long as that is wide open the turbo will try to build boost so you may be hitting limiter but you’ll still hold boost
Would also allow them to have a timing curve instead of the static timing their flywheel key is at. Probably pick up a measurable amount of power, or at least require less boost
PSI isn't a sign of boost. It's a sign of restriction. It's not uncommon to have PSI levels drop on bigger turbos. What you're looking for is more airflow turning into more power, and that's really hard to tell outside of a dyno.
I'm probably describing it wrong, but check into it.
so many people miss this
You guys need a manual boost controller, so you can adjust the boost with the simple twist of a knob.
I was just about to write that. I agree.
Loved the Cleeetus reference with the 99 jet!! Actually laughed my ass off!!
Hey guys I just want you to know that you inspired my first mini bike build. I have a Coleman mini bike that I put a predator 420 in. I just started it today and its spitting 5 inch flames on idle. I think it might be rich lol. I had to buy my first welder for the project and even managed to get a TS125 gas tank on the bike. I only have this epic fire breathing big block because of you guys. I thank you sincerely. BTW I'm 16 idk if that matters but I feel like it adds to it.
I'd love to see an EFI setup on this thing like you did on the turbo 420 drift trike! If properly tuned, that would rip!
I’d like to see an 883 swap out of a Harley.
@@GradyRho92 but that's lame. It being a cheap Chinese knockoff that does what it does is the point.
Never a good feeling when you get back to the shop and bits of engine start falling off 😂
This episode was CHOCK FULL of useful data for you guys to learn from. I predict massive improvements in the next rendition of this project.
I just have to say i can’t believe that 670 has held up this well this long, shes a trooper!
Add a shift light at max rpm so you don't have to worry till then. Or as a warning. Can even add two staged and run one for max power rpm and sustained.
You need a 2 step so you can launch that thing and so you can build boost for the launch. I love that you guys are drag racing now.
They could solder in a msd chip inline with a thumb switch to switch from the chipped to unchipped side to interrupt the signal side of the coil that's how we did it on H.e.i distributors when we had to run stock ignition system in claimer class racing run it on the chip the whole race flip it off on the last couple laps and give it hell to the finish
Remember when you made that Turbo Trike a few years back? And we all agreed that Carburettor turbo setups suck? Bring on the Turbo Methanol Fuel Injection. Thank you for entertaining and sharing.
99 that's 1/8 of an inch lol Said Sam from Cleetus McFarland crew. If you watch you know.
Holy crap that sucker took off like a slingshot I believe you guys got it dialed in great job
Just need a little bit of stall speed and this thing will pull the front wheels!
This is by far the most exciting and fascinating build you guys have done- not that others were dull by any means- but man this has had me on the edge of my seat watching you guys tryna blow this thing up! LOVE IT!
I hope you get it sorted, I love seeing this drag rail. Years ago when I raced carts, we ran methanol in some of of them. We would drain the tank and run pump gas through it at for a while at the end of the night to combat issues like this. The methanol will cause all kinds of problems if you leave it in there BUT that wouldn't stop it from happening only prolong the damage. It was just a part of racing, you learned to keep spare pumps, diaphragms, hoses and tubing around and change the oil between every heat if allowed. Back than, pump gas was actually gasoline, not the junk in the pump today and I believe they make better parts now days that will hold up a little better. Good luck fellas, I hope to see more.
Some ideas for the dragster 1. Limit the amount of runtime between oil changes(if your running nitro its murder on oil). 2. If there is one available, install a hotter ignition source (capacitor discharge?) 3. Install an air-fuel percentage gauge and video its readouts to include where the car is on the track. 4. Increase air intake capacity by using an aftermarket two barrel carburetor equipped for methanol(300 or 500cfm Holley?) or using one of the smaller turbochargers per cylinder with a carburetor on each.
If you want more boost on the fly, just take different sized vacuum T fittings and add one into the waste gate line. The hole Ike made isn't near big enough to do anything. You could also put washers on the wastegate linkage. Id just order a 15 dollar manual boost controller and call it a day. Also, I think you're having a fueling issue. Before you change the electrical, dial back the jet some and get your boost back to that 8lbs. Great video, thanks for the entertainment.
((Edit)) I commented to early ...lol
That will definitely cause a fueling issue.
Two forward and one back means you’re still a step ahead!
"We should start with one hole at a time" I told my wife the same thing lol..P.s I think a fuel tech ecu would be magical on that beast..
"Boost-control" bleed valves are dirt cheap and would make adjusting boost much easier, while avoiding a vacuum leak when off boost.
You can also get knock-off OEM VAG boost control solenoid valves (for like Audi tt and Volkswagen 1.8t engines) for real cheap as well (like 15 bucks on Amazon). Wire it up to a button and you will be able to manually get extra boost if you want, or help build boost before launch by bypassing the wastegate completely.
Cleetus McFarland would be proud of the 99 lol. keep Up the great work you guys!! can't wait for that mini mayham video!
Nope ;-) This show here is way better than this bizzarre Cleetus character.
Have you guys measured the emulsion tube diameter for the meth carb setup? The giant main may not be fully giving ya what you think if the emulsion tube is the new restriction. Nothing to do with the sputtering issues, but could potentially allow better AF mix with a smaller main+larger emulsion tube while giving the same volume of fuel.
@sourand jaded Tomatoe Tomato - emulsion tube and needle jet have been used interchangeably for years by virtually every manufacturer and hobbyist.
Efi would be a neat adventure on that thing. Check out the boostedbois recent video about their shopping cart that has a lifan engine with a turbo and efi on it, that setup on the rail would be epic.
"Ike has a record of breaking stuff" = Ike knows that when in doubt throttle out, this is where legends are made!
High rpm misfires can be caused by gapping spark plugs too much or at the high end of range. Start at the closest setting first.
Awesome dude's looking forward to the next upgrade and run. Also you guys should start your own competition with your own set rules.✌🏻🏴
All this drag racing content has kept me glued to my seat waiting for the next video !
For Fuel Injection System: Suzuki SV650 and SV1000 run fuel injection from 2003 onward. They are V Twin motors and really good bikes 🤙 as far as I know you can get after market computers to tune them too.
As your running turbo probably need the system from the 1000 🤷. Awesome work and video as usual!
You guys need a LECTRON carb setup for the fuel you are running, It will solve your fueling problems. You will also need a fuel pump designed for E85 and fuel line for E85 . Love watching your channel and looking forward to the next video .
I agree. A LECTRON carb would definitely be a safe bet for being able to tune a methanol field engine.
Methanol is far more caustic "Corrosive" than Ethanol or E100
I absolutely LOVE this content
And this build series
2x engines, 1 big turbo. Fits on the rails. Use existing intake and fork into two. Use a nonelectronic Weber 2bbl carb, like off a Pinto. Those flow very well.
Love seeing Isaac get distracted by the cars going down the strip as he's talking, I know I'm not alone!
I'm loving this drag saga more and more for every video. Keep on working on it! Do you have any specific goals you want to reach with this build before moving on?
Run a sub 7.50 at over 100mph!
@@CarsandCameras hey guys you all are doing a great job getting it running very good...iv been drag racing for over 35 years cars.. motorcycles and 4wheelers iv got trophy for all the classes just wanted you to know iv done it along time and I can give you very good advice...if you get the 60 foot time down to around a 1.50 to 1.70 anywhere in that range and your little rail will be in the low 7.0s easy you have got the MPH for it..the MPH being real high like that shows that it's making alot of HP..iv left a couple of messages on a few of your other videos and I keep getting a message to text you on telegram and I don't think that it's you or Issac... someone is trying to hack your members for money...
Something I would really love to see is the drag rail with the cross kart engine
Sam would be proud 👏 "99's"
The methanol is terribly caustic. When we raced Briggs engines in go karts, we drained everything after the night or pump and carb would be ruined. We pulled head and flushed cylinder wall to prevent damage usually with WD-40. A lot of work but made the difference between winning or losing. A fun series to watch, keep going.
I would totally recommend you guys get an AFR gauge for more info on what's going on with the engine as far as tune up goes
Love watching you guys learn all the basics with your dragster!! Great video for the people that understand what's happening! Fresh reminder off the pain. You we're so close!!
Boosted boiz just got theirs running on fuel tech 550, fuel injection, on a single cylinder
Dang right sam will tell you about them 99s ask cleatus mcfarland!! Lol great job on the dragster. Thanks guys.
You guys are tops in getting something from such a small package. I enjoy and am cheering you on to better performance with this dragster .
hmmm i heard fueltech makes some pretty nifty dashes with integrated ECU so all youd have to do would be to slap 2 injectors on the intake and have EFI, o2 sensor on the exhaust and you got yourself some pretty nice tunable stuff that can do everything just like a big car would :)
Hey guys, your turbo waste gate has an adjustable rod! No need to bend nothing. All you need to do is wind the Rod in a few turns to increase the waste gate spring pressure, equals more boost.
I'll tell you what, I've had a shit week topped off with an absolute shit day, and when I saw this come across my notifications I excitedly added it to my watch later que knowing that watching grown men make ridiculous go karts was sure to brighten my spirits. Keep it up guys ❤️
Love watching you guys I'm learning watching you guys.thanx for taking all of us along.
Jon says it reminds me of Taco Bell 😂😂 great vid guys
Great job on diagnosing the drag rail, y'all will get it right! Thanks for the video y'all. Stay safe.
so glad you guys put the spotlight back on this thing, its been a great series so far and i cant wait for it to finally take off like a rocket down the strip.
I like the cleetus reference with the 99 jet lol
For fuel injection maybe look into Mega Squirt. Apparently those can do just about anything that you want them to. Possibly even set up a launch rpm not to mention data logging.
this is an amazing amount of fun to watch. I can imagine it is a blast actually doing it.
I'm really enjoying this whole drag rail series. I'm so hopeful that you guys run a great time soon 🤙🏻
I just love this series. By far your best. Camera work has really come a long way also.
Bravo boys....
John, if you haven’t yet, look into a Speeduino. It is an Arduino-based stand alone ECU that is very simple and cheap to use. It uses TunerStudio for tuning and only requires a few basic sensors to run. If you can adapt a throttle body with port injection it could solve a lot of your carburetor woes. Methanol is a great fuel but will absolutely eat any rubber that isn’t made specifically for it. Love the build!
I got my Speeduino from SpeedyEFI, highly recommend! The standalone cost less than my cams, and it was really easy to get running and dialed in
You’re washing down the cylinders and thinning the oil 😬 “ Danger Will Robinson “ 😂
Great video guys! Love to see the drag rail going down the strip!
Efi would fix so many of your problems! Hope you guys can find a system for the 670. Maybe a harly system or 4wheeler. You'd have to rig it probably but it will be fine and if it works it work!
Take a good timing light hooked up, and a rubber band around the trigger, with you during the pass, and keep an eye on it if you suspect an ignition problem. You'll see skips in the light that correspond with the misses and pops if the ignition is to blame. If you see a constant, smooth light, then it isnt the ignition. I used to do this with high-performance 2-Stroke outboard motors to diagnose ignition system issues when they were running rough, and it works like a charm to determine if it's an ignition or fuel related issue.
The problem/problem reason found vibes of this video were just awesome. Loved it as usual🤙 keep up the great work guys.
Love seeing you guys live your best life, makes me smile. Keep up the awesome work!!
You CAN use a Fuel Tech ECU to run fuel injection/timing on this engine. They’re not cheap, but they’re extremely easy to use and tune.
Need a methanol tech carb. You can get a brass float for the carb. The fuel pump is definitely toast. Fuel injection would be great.
Go all out & get an EBC (Electronic Boost Controller)! Data Logging, Fully adjustable & helps get earlier boost than "adjust a leak" manual valve method. Combined with a multi-spring tuneable waste-gate Diaphragm Housing Assembly. One and Done! Great effort & video!
got the 99 jet from Cleetus and Sam at McFarland Racing 🤣
This is certainly one of the most enjoyable projects yall have done on TH-cam.
Only one thing left to do….stack the old, and new turbos for a compound turbo v twin.
I have 4 of them same wheel Dollies. They work good and are varry reliable. Saved a few people on the side of the road with them. One had a broken ball joint so I put one under his front tire and we got it off the road to a safe spot.
Yall should definitely put what Boostedboys put on their shopping go cart. Great for tuning
And get the best spark syst you can or something for a car possibly?
You all got this....Await for it to SCREAM !!!!! DVD:)
the gt15 waste gate pressure is 13 psi, when you poked holes in the gate tube you made a boost leak, keep in mind you want boost and backpressure balanced, also try to build boost before you leave, i love the videos tho!
It will all come together. I’m confident you will find that sweet combination and I CAN’T WAIT!!! J.W. The (not by choice) Yankee.
It's a learning experience guys, and I'm sure you will figure it out. Fun to watch, no matter how it goes. I'm not normally into drag racing, that being said, I have to admit that I really enjoy your mini rail. It just sounds and looks like a blast. Hope the methanol in the oil didn't hurt your engine. I'll keep watching to see how it goes. Good luck guys. Hopefully Charles is doing well with his tool replacement.
Was the 99 jet a Cleetus McFarland reference?😂😂 love the build y’all!