Nope. You go with an oven sized extra large external waste gate when you are running small turbos. Your engine will choke being unable to bleed off enough exhaust back pressure. You want an over large gate so that you can effectively make the car "exhale" by allowing the exhaust pressure that backs up behind the turbo (trying to push most of the exhaust though the small turbine) instead as the exhaust pressure starts to back up behind the turbo you allow it to readily escape down the exhaust system before the turbo. You can then tune in 3D and keep boost pressure as a constant. Small turbo will produce instant boost but with the large gate your car will keep pulling strong to redline. Use a electronic waste gate and mount the "escape tube" to the external gate as far as physically possible away from the heat of the turbo. The gain in instant and fully granular boost control far outweighs what you think might be lag by having the gate so far away. Trust me neumatic boost control is rubbish. Electronic boost control although uses active water cooling they are not where they want to be as far as heat shielding electronics to a temperature that is sufficient in most current drag racing. They cook relatively easily. Keeping them cool is all you need. If you think I'm crazy go ask the dudes that run V8 pickup trucks with twin turbos as the muffler at the back of the tray! Every single one of those guys always gets asked if they are laggy and they aren't and they go on to explain that the measures of "boost pressure" is any additional pressure above ambient pressure.. It's a sealed system. There is no "refilling" the system, there is no additional time to fill a bigger volume, it's just a bigger volume once it's full (it stays filled) and boost is everything after its filled. My point is that the negative effect you think it may have remote mounting an E gate is invalid because even mounting the turbos as far away as physically possibly will has negligible effects on boost pressure and or perceived feeling of lag? The gain in having such precision control dictating where you would like to direct your spe nt exhaust gases far out weighs anything? You could even do back to back tests remote mounting and then manifold mounting the egate and I bet there will be no noticeable difference? The only thing will be that nice brand new tech E gate WILL toast on you eventually because of heat. You're idea with smaller twins is a very sound idea though. Curren z Brothers Racing in New Zealand personally messaged me on the internet to confirm that my idea is sound and that they had successfully done this on an FD RX7 (drift car) it was running 2 GT35R turbos with tiny 0.82 rear housings (very small for a rotary and usually not recommended) but they used a single 92mm external gate. They could make it run naturally aspirated with the gate 100% open 😲 it held boost to red line and never choked. The guy did a drag run in it and still did a 10.1 spinning the wheels the whole ¼. They are a world class performer shop and I was getting flamed down in the tech section. I felt validated to have someone of such status tell me my theory is spot on. I started a massive fuel fired fued basically calling all the guys running 1.32 housings on a street car morons 🤣 that's called poking a bear on a rotary forum 😁 They all told me I had rocks in my brain for wanting to run a T04Z P trim front and 0.82AR exhaust housing and 76mm gate. If you are only allowing enough exhaust flow to the turbo to maintain boost threshold, them ALL of the rest of the exhaust is going out the tail pipe. Even a small turbo will be barely breaking a sweat because you won't have huge shaft loads of choking. Tiny turbos will just zing along at just enough to keep you at your desired pressure. You aren't forcing and loading shit anywhere and EGTs will prove that. If you are cooler at the closest to the exhaust ports than you are at the dump pipe you aren't choking you are blowing out flame. Add water injection and a huge capacitance ignition system and running crazy boost thresholds and you get to see physics change inside the combustion chamber......just add lightning ⚡. If you don't put an oversized ignition system on your car you may as well throw the water injection in the bin, just saying. If you aren't running big boost numbers that would normally detonate your car then you aren't using water injection properly and you should throw it in the bin,! Extreme yes because nobody uses it like it was design to.
The reason they are so heavy was because the mk3 was moving away from the sporty category and more into grand tourer. A Comfy two seater that can be sporty. Dollar exchange rates, economy, and tariffs. Forced them to make em higher "class" vehicles meant for more wealthy buyers, to keep margins higher. So they had thicker metal, double walls, sound deadening, plush automated seats and so on. Still one of my favorite toyota cars, they just look like a slick box and I love that.
I'm an inline 6 guy who tried to build a 300 HP 4.2 Jeep engine for my Javelin. It sounded NASTY, but ate itself soon after. I say build the NA version so I won't have to!
what did you learn from this? i've been scraping the internet for people boosting their 4.0 L6s and I can't find stuff on pistons/rod specs just because its such an uncommon thing to do. i have a 04 wj that im going to build into a street sleep, looking to push up into the 4 digit range way out in the future but for now trying to stay in that 300 horse range.
The mk3 Supra was born to be a grand touring machine. Its weight will always be a handicap in autocross, but a GT coupe with like, 400hp/500ft-lbs and all the comforts and amenities would make a nice cruiser that could still eat.
I really like the NA idea but it would be way cooler to make a turbo car again. The little factory boost gauge still works in my Z and it’s a blast to bury the needle at 18psi😂
I knew that car as soon as I saw the thumbnail! I'm happy that you ended up with it and that it's getting revived. That car led me to the 4200 builds and eventually to your channel years ago.
Aweosome built man, some times I was thinking if I break my 2j maybe I try a 4200 in my car aswell, very cool proyect I want to see how this engine perform in a mk3 supra.
Let's show them 2jz boys that gm can make a wicked inline 6 engine just as well..! The camaro and Supra are going to skyrocket your channel!!! I am very excited to see what you can do with these.🔥👌
Great stuff! I've build my hot rod for autocross and road racing, too, but only did autocross racing. I'd love to see what you could do naturally aspirated, either with stock compression or maybe up to about 11.5:1. It would be very cool to see what a hopped up 4.2L could do and then autocross it and eventually turbo it if you really wanted lots of power, especially a small turbo so it could be more responsive and put maybe 500-600 HP to the tires, (ideally not on E85 but premium pump gas, like most of us would do on a street car). I've always wanted to see about some kind of supercharger, too, and maybe not electric but maybe centrifugal. Thanks!
Cool project! used to race with a guy that had a mk3 with the 7m turbo. My vote if its a autocross/street car would be a twin sequential, 4.2liters is enough displacement and opens up the turbo options. But for autocross only I would vote NA or Centrifugal supercharger. either way I cant wait for the next vid!
Love the car, I had one in high school. It was one of my favorite cars I’ve ever owned. I had the same color you have if you repaint it it will be super beautiful. That is an awesome color. I vote all motor set up.🎉
Got an old jaguar xj6 I'm putting a 4200 in... Sadly got two projects going but seeing you guys keeping the dreams alive makes me want to bump the jag to the front of the line
Been waiting for someone to do *_that_* Build. Hoped for a time it'd be me first. Lol Great news. I hope to see it on the internet if not in person some day!
My personal opinion is it’s a Supra. It has to have a turbo. They are known for loud exhaust and turbo noises. So cool to see this car again. I remember watching videos about it a few years ago
I cannot believe you ended up with this car. That video was also my introduction to the 4200 and I’ve wanted to swap my mk3 ever since. Watched it too many times haha. Oh, and I vote for an unnecessarily strung out N/A motor. ALWAYS wanted to see one of these at its max without boost!
For peak scavenging, I wouldn't build a 6-2, or 6-2-1 header for NA. I would build either an equal length 6-1 header with a sequential collector (best power and response, at the expense of complexity and space)... or a 6-3-1 header. A 6-3-1 will take up less space, have the easiest primary routing, give you 180 degree primary pulse scavenging, and still get use from one of your 3 port collectors. If tuned properly, either of these will give you a broader torque curve, and notably better throttle response throughout. Also, the sound will be 🤌
i believe it being a turbo supra you should make it a 2jz killer build. 5-600 horsepower on a haltech or link. just a fast streetcar you can genuinely enjoy daily.
@manworksgarage 2jz's are best enjoyed at 5-600whp not useable street car at 7-800whp. You will eat up 3.0 2jz's at the same power level from the extra torque you get out of the 4.2 plus you can utilize a bigger turbo and still have decent spool.
An N/A high comp build would be great to see. Something a little different and a bit more involved. Whatever option you choose, I'll be watching with eager anticipation. 😊
Centrifical supercharger running off of front of motor. Instant torque and boost for autocross. Ideally positioned for the intercooler. It looks like a turbo- sort of ish, and your throttle whacks off the lights would be insane. But, all your options would be sweet......
The US spec bumpers and associated reinforcements will probably knock some weight off if removed. Also, going back to a smaller wheel size and putting some DOT Autocross tires would help.
I'm going to vote torqstorm style supercharger. You have the A/A intercooler and it would be super snappy! I can't hardly believe the car is 3400lbs! A lot heavier than I expected
vortec 4.2 was my backup for my mk3.. way cheaper and easier to find than a 2J and way more displacement. Only thing is 2J can rev higher and has more aftermarket support at the moment. Sounds like a 2J though!
NA all the way for me. 6 throttle bodies, large air box. But at nearly 1600kgs... idk. The shifter is the original toyota w58 shifter. When I first saw the shifter I thought someone had mated an aisin w58 to the atlas. I really enjoy your channel, keep up the good work.
It might be the turbo MK3 Supra came with an R154 which is basically the same transmission with different gear ratios and bellhousing as the transmission from a Chevy Colorado.
Awesome! I also love box flares. I bet a lot of comments are going to say superturbo, but I vote go with the first option for now. Turbo and use what's on the car. Would love to see y'all drift this thing a little too!
Pretty cool. I sometimes wish I still had my 86.5 Supra. The MK3 has always been known as being a bit heavy. More of a Grand Touring car than a sports car I heard someone say once. Can't wait to see what you do.
So glad you picked this car up. I remember when limeswap was building it. A guy put a 4200 in a 3rd gen fbody around the same time and it think limeswap and him were friends/influenced each other.
Ironically I ran into an almost identical color mk3 4200 at cruise night this summer. Sometimes I think I have car project ADHD but I'm glad I can live vicariously through you on your number of projects!!
Ah the memories of watching this car take shape between classes. Also, 4200 auto x build has always been an idea in my head as well, glad to hear someone is making it happen!
Yes Yes yes yes, please do an NA build. You’ve done such a good job showing the world what these motors can do with boost. It’s only right that you be the man to show them what these motors can do NA… dare I say, ITB’s?!! Please do this
I think this would be an excellent time attack car, really show the capability of the 4200 in circuit conditions, also a 4200 with individual throttle bodies would be absolutely wild to hear
I vote for NA build with ITBs! Super high Comp.. Aggressive Cams.. Maybe even a 4.5-4.6L Stroker setup? After that just go absolutely nuts on suspension and weight loss!
I'd love to see a naturally aspirated build, and I think this is the perfect car for that especially with the heavy weight of the car without any forced induction currently on it.
Mk3s are known to be heavy cars. I think if you do an NA response build it would be more fun in something lighter. VGT turbo or Supercharger would be really cool
I am so glad you saved this car Calvin! Like you, this was one of the cars that introduced me to the 4200 and I have seen that same video of it taking off 100000000 times!
Calvin im so excited with this build. After seeing the thumbnail I instantly thought of the video of this 4200 supra, funny that its the same one LOL. Excited to see how this ends up, has to be my favorite project.
If you are worried about drivability I would do supercharger. The NA build would be sweet but will turn the car into a race track trailer queen. Love the builds✌️
Do a small turbo build, under 500 whp. Seat time is more important than power. Fit as big of tires as you can, if a 295 is all you can fit square run some re71rs’s. They’re the best feeling of the fast 200 tread wear tires. But if you can fit 315’s go with A052’s
N/a balanced rotating assembly with nice induction set up for a linear curve with decent rpm. You can ways build another or change up the set up. We all love forced induction, but there is not many people on you tube pushing the boundarys or n/a and showing it to the public.
Im all about turbos but would love to see an old Eaton 4.6 Cobra supercharger on it and dig into Auto X or play on some road courses (VIR would be fun with a brake upgrade) but a high compression N/A ITB set up would be cool too
Yo an A70 Supra. And surprised it wasnt rusted away in some forest or junkyard. Whats funny about the agreement between the JDM car makers is there are supposed to be capped at 276bhp/280 crank horsepower. But that figure is more like 276 wheel horsepower and the 2JZ and RB26 are producing around 320-330 bhp at crank. A few simple bolt on mods like intake and exhaust easily those engine break 400+ bhp because the factory exhaust are very restrictive.
I almost bought a 4200 for my supra when i blew the 7m up... aftermarket support and how easy jz-s are to work on made me choose the 1jz tho. Im gonna build it so itll do 10k rpm one day... i just wanna hear that niise of a jz spinning that fast.
My first car was a 1986.5 mkIII Toyota Supra. I went through an engine, head gaskets, and a transmission. It's a decent handling car and it surprises me how cheap they still are. Mine had 17 inch 5zigen fn01r-c wheels. I think 17 inch look best on this car (not a fan of the 18s on this car). Mine was slammed on Bilsteins with 10.5 inch wide in back and 8.5 inch wide in front. I'm very excited for this build.
Just Subbed. I didn't know nothing about tgese engines until i saw That Dude in Blue reviewing one. Im definitely interested this is a cheaper alternative to the 2JZ or even a b58
The rear diff is a Toyota 8", similar to what was in the trucks. You can swap gear sets meant for trucks into these with the right combination of side bearings.
Back when the gen5 wasn't even a concept car i talked about the I6 being ideal as a base performance motor for a new F body. I got a lot of push back from people, but the most absurd was the idea that 4.2L is just somehow too big for an I6. The thought was that the 2JZ was a 3 liter, the RB26 a 2.6L, so thats obviously the correct size for an I6. Besides the fact that if GM wanted to, they could easily produce a 3L version of the Atlas, the only things they could come up with were some vague notions of bore stroke ratios, ideal combustion chamber width etc.
the most powerful naturally aspirated inline six engine ever produced for road cars was the 2005 TVR T440 R, with its 4.0L six making a claimed 434hp to the crankshaft. i'd love to see the Atlas fly past those numbers before popping on a procharger or other forced induction setup.
I think a supercharger or na build would be awesome, as you don’t really see supercharged inline sixes, and na would be awesome because I want to do something similar on my jz.
My vote is some tiny twins. Cheap budget and fast spool. Use internally wastegated ones to keep space.
Yup
But weeeeeeee weeeeeeee 😢😢 no weeeeee weeeee needs weeeeee weeeee super charger go weee weee weee 😢😢
Compound
@@wolfgangsgarage1693 nah it won't sound very good at all
Nope. You go with an oven sized extra large external waste gate when you are running small turbos. Your engine will choke being unable to bleed off enough exhaust back pressure. You want an over large gate so that you can effectively make the car "exhale" by allowing the exhaust pressure that backs up behind the turbo (trying to push most of the exhaust though the small turbine) instead as the exhaust pressure starts to back up behind the turbo you allow it to readily escape down the exhaust system before the turbo.
You can then tune in 3D and keep boost pressure as a constant. Small turbo will produce instant boost but with the large gate your car will keep pulling strong to redline. Use a electronic waste gate and mount the "escape tube" to the external gate as far as physically possible away from the heat of the turbo. The gain in instant and fully granular boost control far outweighs what you think might be lag by having the gate so far away. Trust me neumatic boost control is rubbish. Electronic boost control although uses active water cooling they are not where they want to be as far as heat shielding electronics to a temperature that is sufficient in most current drag racing. They cook relatively easily. Keeping them cool is all you need.
If you think I'm crazy go ask the dudes that run V8 pickup trucks with twin turbos as the muffler at the back of the tray!
Every single one of those guys always gets asked if they are laggy and they aren't and they go on to explain that the measures of "boost pressure" is any additional pressure above ambient pressure.. It's a sealed system. There is no "refilling" the system, there is no additional time to fill a bigger volume, it's just a bigger volume once it's full (it stays filled) and boost is everything after its filled.
My point is that the negative effect you think it may have remote mounting an E gate is invalid because even mounting the turbos as far away as physically possibly will has negligible effects on boost pressure and or perceived feeling of lag? The gain in having such precision control dictating where you would like to direct your spe nt exhaust gases far out weighs anything?
You could even do back to back tests remote mounting and then manifold mounting the egate and I bet there will be no noticeable difference? The only thing will be that nice brand new tech E gate WILL toast on you eventually because of heat.
You're idea with smaller twins is a very sound idea though. Curren z Brothers Racing in New Zealand personally messaged me on the internet to confirm that my idea is sound and that they had successfully done this on an FD RX7 (drift car) it was running 2 GT35R turbos with tiny 0.82 rear housings (very small for a rotary and usually not recommended) but they used a single 92mm external gate. They could make it run naturally aspirated with the gate 100% open 😲 it held boost to red line and never choked. The guy did a drag run in it and still did a 10.1 spinning the wheels the whole ¼.
They are a world class performer shop and I was getting flamed down in the tech section. I felt validated to have someone of such status tell me my theory is spot on.
I started a massive fuel fired fued basically calling all the guys running 1.32 housings on a street car morons 🤣 that's called poking a bear on a rotary forum 😁
They all told me I had rocks in my brain for wanting to run a T04Z P trim front and 0.82AR exhaust housing and 76mm gate.
If you are only allowing enough exhaust flow to the turbo to maintain boost threshold, them ALL of the rest of the exhaust is going out the tail pipe. Even a small turbo will be barely breaking a sweat because you won't have huge shaft loads of choking. Tiny turbos will just zing along at just enough to keep you at your desired pressure. You aren't forcing and loading shit anywhere and EGTs will prove that. If you are cooler at the closest to the exhaust ports than you are at the dump pipe you aren't choking you are blowing out flame.
Add water injection and a huge capacitance ignition system and running crazy boost thresholds and you get to see physics change inside the combustion chamber......just add lightning ⚡.
If you don't put an oversized ignition system on your car you may as well throw the water injection in the bin, just saying. If you aren't running big boost numbers that would normally detonate your car then you aren't using water injection properly and you should throw it in the bin,! Extreme yes because nobody uses it like it was design to.
I am all about putting a turbo back on it. Already has the badging,and you have the skills!!
Super high compression, aggressive cams, maybe some spray if that tickles your fancy. Sounds super cool
Also another guy said ITB’s so that too
Wow you already have the pistons. Definitely go for it!
+1 for the spray that car deserves to look its best.
@@cj09beira spray meaning nitrous lol
@parkerbethke needs both tho ❤
@@pob_car❤
Because of your videos, I'm planning to put a 4200 with an ar5 into my 82 celica supra. Never thought I'd see this video from you. Please continue!
The reason they are so heavy was because the mk3 was moving away from the sporty category and more into grand tourer. A Comfy two seater that can be sporty. Dollar exchange rates, economy, and tariffs. Forced them to make em higher "class" vehicles meant for more wealthy buyers, to keep margins higher. So they had thicker metal, double walls, sound deadening, plush automated seats and so on. Still one of my favorite toyota cars, they just look like a slick box and I love that.
I like how you described what you like about the Gen3. Nice compliments to the original builders.
I'm an inline 6 guy who tried to build a 300 HP 4.2 Jeep engine for my Javelin. It sounded NASTY, but ate itself soon after. I say build the NA version so I won't have to!
Ive always wanted to learn/build the 4.0 H.O. from the XJ's... i had 5 of them over the years and just started building JZ's
what did you learn from this? i've been scraping the internet for people boosting their 4.0 L6s and I can't find stuff on pistons/rod specs just because its such an uncommon thing to do. i have a 04 wj that im going to build into a street sleep, looking to push up into the 4 digit range way out in the future but for now trying to stay in that 300 horse range.
The mk3 Supra was born to be a grand touring machine. Its weight will always be a handicap in autocross, but a GT coupe with like, 400hp/500ft-lbs and all the comforts and amenities would make a nice cruiser that could still eat.
Why would I be mad? This is dope. We didn't get the Bora motor in America. This is close enough.
Best looking Supra they made. Absolutely love them. A pro touring build or something with good horsepower and good handling for the twistys.
Mk 3 is a work of art, mk 4 is a bloated pig.
Id love to see a brute force NA 4200 build, although the dual charged option is appealing as well, im along for the ride, either way!🥰
I LOVE IT!!!
I really like the NA idea but it would be way cooler to make a turbo car again. The little factory boost gauge still works in my Z and it’s a blast to bury the needle at 18psi😂
MARK III HELL YES.
This is unbelievably cool.
I knew that car as soon as I saw the thumbnail! I'm happy that you ended up with it and that it's getting revived. That car led me to the 4200 builds and eventually to your channel years ago.
I'd love to see a sweet n/a setup 👌 do what the others can't
Aweosome built man, some times I was thinking if I break my 2j maybe I try a 4200 in my car aswell, very cool proyect I want to see how this engine perform in a mk3 supra.
Let's show them 2jz boys that gm can make a wicked inline 6 engine just as well..! The camaro and Supra are going to skyrocket your channel!!! I am very excited to see what you can do with these.🔥👌
1:29 you forgot to give it a doug score
Great stuff! I've build my hot rod for autocross and road racing, too, but only did autocross racing. I'd love to see what you could do naturally aspirated, either with stock compression or maybe up to about 11.5:1. It would be very cool to see what a hopped up 4.2L could do and then autocross it and eventually turbo it if you really wanted lots of power, especially a small turbo so it could be more responsive and put maybe 500-600 HP to the tires, (ideally not on E85 but premium pump gas, like most of us would do on a street car). I've always wanted to see about some kind of supercharger, too, and maybe not electric but maybe centrifugal. Thanks!
Cool project! used to race with a guy that had a mk3 with the 7m turbo. My vote if its a autocross/street car would be a twin sequential, 4.2liters is enough displacement and opens up the turbo options. But for autocross only I would vote NA or Centrifugal supercharger. either way I cant wait for the next vid!
The R154 transmission should bolt to the bellhousing you have on it. PGS transmission makes a all billet setup for 1000+hp setups for the Ax15/R154
My 88 Supra was an unexpected gift. Now I'm obsessed with it.
Same with my 89, got the opportunity to buy it as a real cheap project when i was 15.
Love the car, I had one in high school. It was one of my favorite cars I’ve ever owned. I had the same color you have if you repaint it it will be super beautiful. That is an awesome color. I vote all motor set up.🎉
Got an old jaguar xj6 I'm putting a 4200 in... Sadly got two projects going but seeing you guys keeping the dreams alive makes me want to bump the jag to the front of the line
Been waiting for someone to do *_that_* Build. Hoped for a time it'd be me first. Lol
Great news. I hope to see it on the internet if not in person some day!
My personal opinion is it’s a Supra. It has to have a turbo. They are known for loud exhaust and turbo noises. So cool to see this car again. I remember watching videos about it a few years ago
Supercharger sounds interesting... but 14:1 sounds pretty damn awesome
Yeah... 14:1 will be so nasty!
Natural y aspirated sounds cool💪
As a MK3 owner, I wholly support and approve of this project!
Make it an absolute 2JZ killer, just for the haters.
I cannot believe you ended up with this car. That video was also my introduction to the 4200 and I’ve wanted to swap my mk3 ever since. Watched it too many times haha. Oh, and I vote for an unnecessarily strung out N/A motor. ALWAYS wanted to see one of these at its max without boost!
I remember this car from back in the day! A lot of post on supramania
for me as of rn you're the only dude preaching the gospel of this engine. keep it up man.
For peak scavenging, I wouldn't build a 6-2, or 6-2-1 header for NA. I would build either an equal length 6-1 header with a sequential collector (best power and response, at the expense of complexity and space)... or a 6-3-1 header. A 6-3-1 will take up less space, have the easiest primary routing, give you 180 degree primary pulse scavenging, and still get use from one of your 3 port collectors.
If tuned properly, either of these will give you a broader torque curve, and notably better throttle response throughout. Also, the sound will be 🤌
You should put a medium size turbo and aim for 600 HP or so but very streetable! Can't wait to see this build. Love the third gen supra!
i believe it being a turbo supra you should make it a 2jz killer build. 5-600 horsepower on a haltech or link. just a fast streetcar you can genuinely enjoy daily.
5-600 hp is nothing on this engine. He's been making 850 whp easy.
@manworksgarage its a street car for potential daily use, 5-600 horsepower is useable power for the street
@@ethanschocke333 I agree but you started with 2JZ killer and then mentioned driving daily
@manworksgarage 2jz's are best enjoyed at 5-600whp not useable street car at 7-800whp. You will eat up 3.0 2jz's at the same power level from the extra torque you get out of the 4.2 plus you can utilize a bigger turbo and still have decent spool.
You lost me at 2jz killer. Lol
I remember those videos,hard to find info back then,very cool you ended up with that car
It would be really cool to build all motor hp . Itbs , some cool headers , cams , high compression. Im loving it!!!! Lets do it!
An N/A high comp build would be great to see. Something a little different and a bit more involved. Whatever option you choose, I'll be watching with eager anticipation. 😊
Break that number and break it with a classic setup, go triple side drafts!
Centrifical supercharger running off of front of motor. Instant torque and boost for autocross. Ideally positioned for the intercooler. It looks like a turbo- sort of ish, and your throttle whacks off the lights would be insane.
But, all your options would be sweet......
The US spec bumpers and associated reinforcements will probably knock some weight off if removed. Also, going back to a smaller wheel size and putting some DOT Autocross tires would help.
I'm going to vote torqstorm style supercharger. You have the A/A intercooler and it would be super snappy! I can't hardly believe the car is 3400lbs! A lot heavier than I expected
You guys always find a way to level up to even cooler stuff all the time, haha. Love it.
vortec 4.2 was my backup for my mk3.. way cheaper and easier to find than a 2J and way more displacement. Only thing is 2J can rev higher and has more aftermarket support at the moment. Sounds like a 2J though!
Ngl a procharger setup might be the best for your autocross goals. You could still keep the intercooler and boost gauge.
NA all the way for me. 6 throttle bodies, large air box. But at nearly 1600kgs... idk. The shifter is the original toyota w58 shifter. When I first saw the shifter I thought someone had mated an aisin w58 to the atlas. I really enjoy your channel, keep up the good work.
It might be the turbo MK3 Supra came with an R154 which is basically the same transmission with different gear ratios and bellhousing as the transmission from a Chevy Colorado.
I think a torque storm on it would be cool and different!
6466 precision turbo 1.32 a/r housing with a spool valve.
Fast spool and 550 600 hp with really fast spool time.
Awesome! I also love box flares. I bet a lot of comments are going to say superturbo, but I vote go with the first option for now. Turbo and use what's on the car. Would love to see y'all drift this thing a little too!
Pretty cool. I sometimes wish I still had my 86.5 Supra. The MK3 has always been known as being a bit heavy. More of a Grand Touring car than a sports car I heard someone say once. Can't wait to see what you do.
So glad you picked this car up. I remember when limeswap was building it. A guy put a 4200 in a 3rd gen fbody around the same time and it think limeswap and him were friends/influenced each other.
Ironically I ran into an almost identical color mk3 4200 at cruise night this summer. Sometimes I think I have car project ADHD but I'm glad I can live vicariously through you on your number of projects!!
Ah the memories of watching this car take shape between classes. Also, 4200 auto x build has always been an idea in my head as well, glad to hear someone is making it happen!
Yes Yes yes yes, please do an NA build. You’ve done such a good job showing the world what these motors can do with boost. It’s only right that you be the man to show them what these motors can do NA… dare I say, ITB’s?!! Please do this
NA with ITBs .. would be cool. Didn't GM build a 500hp race version for the offroad trailblazer truggy...
That had zero similarity with the production engine. Look up Falconer Inline 6
It would sound awesome, but for autox I feel like it would lack the low end. Be great for a high horsepower na build though.
@@Calvin-Nelson 500hp na sounds like a good goal to me
I vote with the Itb's
I would like to vote for ITBs.
Definitely do an autocross/ hill climb build soon! Love the videos Calvin!!! Mad support
Set it up like the previous owner. I remember watching his videos all the time of this car.
Back in the day we used to say "A Supra is only as good as its turbo" but this is badass.
I think this would be an excellent time attack car, really show the capability of the 4200 in circuit conditions, also a 4200 with individual throttle bodies would be absolutely wild to hear
Very cool !
Never knew about this car.
Supercharger or twins would be interesting.
Sacrilegious at its finest. I approve this build
Id love to see a turbo build in the supra to keep the spirit of that car, but I'm very interested in a supercharger build.
I vote for NA build with ITBs! Super high Comp.. Aggressive Cams.. Maybe even a 4.5-4.6L Stroker setup? After that just go absolutely nuts on suspension and weight loss!
That or I like what someone else said: Tiny Twins!
Love it!!! My favorite supra.......... supercharger 6-1 header side exit boomtube tack monster!
High rpm N/A with a taller rear gear would be amazing for auto cross. Ofc a supercharger would be good as well but I’m in the N/A camp
I'd love to see a naturally aspirated build, and I think this is the perfect car for that especially with the heavy weight of the car without any forced induction currently on it.
Supercharged build sounds pretty awesome! Dont remember ever seeing an Atlas of any kind supercharged
It's been done, but definitely pretty rare
Just the name Supracharger is worth it honestly
Mk3s are known to be heavy cars. I think if you do an NA response build it would be more fun in something lighter. VGT turbo or Supercharger would be really cool
If you're planning to make 1000 HP then a couple hundred pounds doesn't mean all that much.
@@rockets4kids he's referring to the thoughts of possibly doing a NA build.
I am so glad you saved this car Calvin! Like you, this was one of the cars that introduced me to the 4200 and I have seen that same video of it taking off 100000000 times!
I love the idea of a 14:1 NA build. Sounds awesome.
Also looking forward to more NorthStar content. I find that very interesting 👍
I’m interested to see what the 4200 can do NA in your hands, especially with 14:1 compression!
I think supercharging this would make for a perfect autocross car. You might also develop parts you could sell by supercharging.
Last option I like the most.
I would be curious to see how much power you could squeeze out of it all motor
Maybe with some kind of ITB setup as well?
Calvin im so excited with this build. After seeing the thumbnail I instantly thought of the video of this 4200 supra, funny that its the same one LOL. Excited to see how this ends up, has to be my favorite project.
If you are worried about drivability I would do supercharger. The NA build would be sweet but will turn the car into a race track trailer queen. Love the builds✌️
Nice, a yellow car with a red valve cover and a red car with a yellow valve cover. I dig it. Its opposite but the same.
Do a small turbo build, under 500 whp. Seat time is more important than power. Fit as big of tires as you can, if a 295 is all you can fit square run some re71rs’s. They’re the best feeling of the fast 200 tread wear tires. But if you can fit 315’s go with A052’s
N/a balanced rotating assembly with nice induction set up for a linear curve with decent rpm. You can ways build another or change up the set up. We all love forced induction, but there is not many people on you tube pushing the boundarys or n/a and showing it to the public.
Twin internally wastegated garret g25 clone turbos would be awesome quick spool and decent top end
Do compound turbos, diesel style; big feeds the small!
Somehow, I'm green with jealousy. 😂 This is really cool.... I'm looking forward to the next video...
Oh ya! I commented about this car when you started the camero build
Im all about turbos but would love to see an old Eaton 4.6 Cobra supercharger on it and dig into Auto X or play on some road courses (VIR would be fun with a brake upgrade) but a high compression N/A ITB set up would be cool too
Yo an A70 Supra. And surprised it wasnt rusted away in some forest or junkyard.
Whats funny about the agreement between the JDM car makers is there are supposed to be capped at 276bhp/280 crank horsepower. But that figure is more like 276 wheel horsepower and the 2JZ and RB26 are producing around 320-330 bhp at crank. A few simple bolt on mods like intake and exhaust easily those engine break 400+ bhp because the factory exhaust are very restrictive.
I almost bought a 4200 for my supra when i blew the 7m up... aftermarket support and how easy jz-s are to work on made me choose the 1jz tho. Im gonna build it so itll do 10k rpm one day... i just wanna hear that niise of a jz spinning that fast.
Man that thing is cool.
I have the same year, and i ended up swapping and stripping my 88 so i have some spare parts... lmk if ya need anything.
I definitely like the supercharger idea 💡
It would be cool to run a used holset vgt on her. The whistling sounds would be pretty nice.
An NA build with the manual would be cool as hell
My first car was a 1986.5 mkIII Toyota Supra. I went through an engine, head gaskets, and a transmission. It's a decent handling car and it surprises me how cheap they still are. Mine had 17 inch 5zigen fn01r-c wheels. I think 17 inch look best on this car (not a fan of the 18s on this car). Mine was slammed on Bilsteins with 10.5 inch wide in back and 8.5 inch wide in front. I'm very excited for this build.
Just Subbed. I didn't know nothing about tgese engines until i saw That Dude in Blue reviewing one. Im definitely interested this is a cheaper alternative to the 2JZ or even a b58
The rear diff is a Toyota 8", similar to what was in the trucks. You can swap gear sets meant for trucks into these with the right combination of side bearings.
Turbo! No question
Back when the gen5 wasn't even a concept car i talked about the I6 being ideal as a base performance motor for a new F body. I got a lot of push back from people, but the most absurd was the idea that 4.2L is just somehow too big for an I6. The thought was that the 2JZ was a 3 liter, the RB26 a 2.6L, so thats obviously the correct size for an I6.
Besides the fact that if GM wanted to, they could easily produce a 3L version of the Atlas, the only things they could come up with were some vague notions of bore stroke ratios, ideal combustion chamber width etc.
the most powerful naturally aspirated inline six engine ever produced for road cars was the 2005 TVR T440 R, with its 4.0L six making a claimed 434hp to the crankshaft. i'd love to see the Atlas fly past those numbers before popping on a procharger or other forced induction setup.
streetcar/drift supracharged build but im curious to see a NA 4200 vortec MONSTER!!
I know whatever you guys do, it’s gonna be epic!
I think a supercharger or na build would be awesome, as you don’t really see supercharged inline sixes, and na would be awesome because I want to do something similar on my jz.
The supracharger is the way to go in my opinion
Procharger baby! N/A 4200's "come alive" between 3000rpm & 5000rpm. Love to see what a procharger could offer. Bet it would short track like a beast.