Supra Turbo

[BLU-ANGEL3737]

Does anyone know cuz I have no idea if a Turbo from a 90 Supra could work on my f22 or even a h22a

[deevergote]

Maybe... It's on an I6, so it probably won't be too small. ANY turbo can be made to work. You just need a manifold with a proper flange. If you have to ask if the turbo itself will "work", you have a LOT more learning to do before you even attempt it!

Read through the Forced Induction part of this forum (it's a subforum of the Performance section). At least read all the sticky threads. Understand a little about turbo, and you can answer your own questions.

[BLU-ANGEL3737]

Thanks for pointing me in the right direction. I know nothing about Turbo's other than they make your car go fast and I want one. I cant afford one of those big name turbo kits so im looking for an econimal way. I have alot of patience. lol.. So what things can I do in the mean time to make my car turbo ready, you seem to know alot. Ive actually been comming to this site for a while now, I just never posted anything before. Also I am going to finally do a swap to a h22a, but not till the summer... so i need to learn of smaller things i can do to prep the car for a turbo while im still driving it with the f22..

[manny_turbo]

oh yeah itll fit with some $$$$

and a lil modification

[BLU-ANGEL3737]

True, thanx for a response. Ill be sure to message you guys for my turbo questions.

[Catch-22]

does anyone make good aftermarket forged pistons for our car? and do you need oversized heads if you're resurfacing the cylinder walls? on the subject of needs for a turbo

[BLU-ANGEL3737]

good question, too bad i dont have the answer bud

[deevergote]

There are plenty of aftermarket pistons available, and most manufacturers will make you a custom piston if you request it.

I don't know what you mean by "oversized heads"... larger combustion chambers? You probably won't be doing any crazy boring of the block, so no, you wouldn't need to do anything in that area.




The easiest DIY turbo setup for the F22A is the "DSM kit"... using parts from the Mitsubishi Eclipse, Eagle Talon, or Plymouth Laser. There is a TON of information on that floating around this forum. The t25 or 14b turbos found on those cars are a bit small, however... a good idea is to upgrade to the "Big" 16g turbo found on the older Lancer EVO models (the JDM-only ones, like the evo3).

If you want to swap in an H22A, be sure to learn a LOT about turbo and tuning. The H22A's compression makes for a risky turbo motor, and it's much easier to blow one of those up if you don't know what you're doing. The F22A performs VERY well with turbo (it's a very potent motor, believe it or not... even non-turbo). I would stick to the F22A if you want turbo. Swapping to an H22A doesn't really do anything for you. You'll hit about the same peak power levels on the stock blocks, and once you build, they are both capable of more power than you'd need for a street car.


And yes, I should know a good deal. I don't know everything, or even close to everything... But I run the place, so I can't be a total idiot!

[Camurai]

As deev said, I'd recommend sticking with the F22 engine for a turbo application. With an 8.8:1 compression ratio, it tends to be a lot more forgiving of turbos than the 10.6-11.0:1 of the H22A. Piston choice on the H22A is also critical, as some sleeves WILL NOT tolerate forged pistons.

At the very least, you're looking at a lot of expensive custom fabrication and tuning to make everything work. For starters, there is no current manifold or downpipe made to work with the CT26 turbo used on the 7M-GTE from the 86-92 Supra on the F22A, or the H22A for that matter. You'll also want to do a lot of research to properly size your intercooler and injectors, along with everything else that goes along with adding a turbocharger to any engine.

Good luck with the project, and make sure to take plenty of photos and document everything! This would make a great magazine feature!

[Catch-22]

thanks Deev...and actually I meant piston, not head....but that still answers my question...and a question I didn't ask and probably should have. always nice when the head fits on the rest of the block

[deevergote]

Ah, ok. Yeah you would need to get pistons of the appropriate size for an overbore. A honing won't need it, though. Turbo pistons often run looser tolerances anyway, as the material used tends to expand a bit. A built turbo motor often sounds like a diesel when it's cold. The pistons used for NA motors have tighter tolerances, and are built of a material that will not expand, and is prone to cracking. (it's all based on the silicon content)


The H22 has FRM sleeves, and can only run certain aftermarket pistons (Mahle Gold Series for sure. I've heard Cosworth and JUN also have some that work). A resleeve would be required to open up your options... and it would also be good for extra strength. The FRM sleeves are very strong, but still won't hold up to as much boost as a turbo-specific sleeve, such as those from Darton or Golden Eagle.

[InvaderTrax]

The CT26 is a shit turbo anyway. You'd be much better off with a DSM setup and a 16g, or even a T3/T4 kit

[quickangel93]

the turbo could work, but its to damm small.

[InvaderTrax]

the turbo could work, but its to damm small.

What are you talking about? It's bigger than a 14b, and capable of 15 PSI efficiently and making power 'till 6500 and probably beyond. It's just got poor bearings and doesn't last nearly as long as a 14b/16g/T25/T3 would