I have a few questions about the early 90s Supra. 1) What is the displacement? 2) Is the engine strong? I know the newer Supra engine is pretty much bullet proof. 3) What size is the factory turbo? And can it be upgraded through different wheels or will a larger turbo fit the stock exhaust mani. Finally will the stock tranny (5spd) withstand larger amnts of hp?

Also what is the factory hp figures? Is it worth upgrading this model?

Thanks
Patrick

 

Shoot just noticed a question I can answer

Its a 3.0L inline 6 engine. Its pretty strong the weak point is the head gasket which can be torqued up from factory specs to improve its life. The factory turbo is the CT-26. Cant find the specs right now but its a good turbo that can be rebuilt to support somewhere around 400-500hp with fuel upgrades. Not sure what else would fit on the stock manifold. The 5 spd. tranny is strong but Im not sure what kind of max hp it can support. There are MKIIIs on the net with about 400hp on the stock tranny. Stock the cars are 232hp. Id say theyre worth upgrading. Theres a lot of potential in them but remember its a car thats at least 9 years old. A rebuild may not be too far in the future and other things like a brittle wiring harness or bad power steering pump can happen over time.

I bought an 88 Turbo not long ago and it keeps turning more and more into a project.. want to know how soft a 13 year old (stock) suspension is??

-j0lt

 

The CT-26 turbo is the same turbo used in the MKII MR2s. It can take up to a 60trim compressor wheel. It creates a LOT of heat at that size though. Turbonetics T3-T4 turbos can be mounted with a special mounting bracket but require a custom downpipe. There is a shop in town called CMR Turbo that can do Vtrim upgrades that work real well. I can vouche for them cause I have one

 

http://www.toyota-mods.org/ma70.html

hope this helps

im also looking at getting one...also i wanna ask how reliable they are how much is the average maintenance...
thank you....