right now my car has about 90,000 miles on it i keep the engine running good. What if i decide to supercharge or turbo charge the car at 150,000 miles do you think it would still work stock..?

 

Your question is a little confusing. Are you going FI or are you leaving it stock?
Either way, I dont see why the engine wouldnt keep running fine at 150k as long as you took care of it.

 

Yeah, a little clarification? So you're at 90k, and are planning to go forced induction for the next 60K miles? Am I right?

 

depends on the history of the motor

 

Have a leakdown and compression check done first.

 

Might as well do it now, why wait?

 

I think that he is saying that there are 90k on it now and he may decide to go FI at 150k and wants to know if the motor will still have the compression of a motor with only 20k on it. I say just have it checked and make sure all of the nuts and bolts are still tight. Its not the 80's style motor in an s2k. Its a pretty strongly built f20c that should last quite a long time. Just my $.02

 

go turbo first of all

and second....more power will shorten engine life

but so do rpm's and driving style....

it's a tradeoff.....baby your car and make 200hp (stock) it should last a very long time
OR
make 500hp and beat the shit outta it....sure engine life will decrease!