N/A to turbo
 

I am wondering if there is a old supra that is not running that is turbo or non turbo for around $1000. I am going to rebuild the engine and try to get 650 out of it. Here is another question. Is it possible to switch the N/A manifold to a turbo and run it like a turbo? of course there is going to be a intercooler but is there anything else I have to do like the injectors, heads, gaskets, etc. Please somebody let me know I want to build my street machine. I already helped put a LS1 in a RX-7. I want something to compete with that. Thanx
Orion

you could run it like a turbo.. i think in another thread...apparently the n/a manifold and the turbo manifolds are incompatible...i dunno about this since ive never done it before..but i know that is the case

how would i get it compatable? what would i have to do?

i dont know i never did that swap...i would assume that u just use the na manifold for the na and the turbo manifold for the turbo...i think theres some kind of sensor for the turbo manifold that isnt in teh na manifold...kinda makes driving a little erratic

Which manifold are you talking about? Intake or exhaust? The heads on the turbo and N/A are the same. the intake is basically the same. either way, your gonna have to do more than just swap manifolds to get 650hp unless you use nothing but NOS. On a turbo, the manifold design is no great concern since the air is forced in unlike a N/A. You will need a Header type exhaust manifold capable of mounting a T44 or larger turbo with a 4" wastegate flange. The stock turbo manifold is only good to about 300hp, and thats with the turbo upgrade. Bigger injectors (at least 550), aftermarket engine management system, the stock ECU is only good to about 450hp and serious bottom end beef up to handle the power. You will need a bigger than stock intercooler and radiator. Throw all the stock bolts out and stud everything. Im building a road racer 87 turbo to put out over 650hp with no NOS.

I've read the 7M's block and bottom-end are stout enough for over 700+ HP?:dunno:

Just think about it. the stock bottom end only had to deal with 230hp, do you really want to chance it when you tripple the power?

True. So what would you say is the maximum HP the bottom-end can handle reliably?

about as much as the ECU, 400-450hp, without a big shot of NOS, allot of NOS with the turbo really stress's the bottom end. I myself don't believe in NOS. Its not honest HP.