first i'll tell a little of my story... i recently just got a 2000 s40. it's been in my family since it was brand new. another family member overheated the crap out of it, and basically destroyed the engine... it was so bad the engine covers melted to whatever parts of the engine they were touching. i installed a new (used 2001 1.9t) engine with 74k miles on the clock, and now the car works great, the car has 105k miles. so, now that i've taken care of all of its issues, i'm ready to have a little fun with it. this thing is going to stay a daily driver, i'm not looking to do anything nuts with it (maybe 20-40hp more).
and now on to the questions: and yes, i've searched all over for the answers to these questions.
what the hell does the gray key do? i have two black ones and one gray one...
how much power is the 12t turbo good for? i was looking for around 200ish whp if possible.
will this increased power level kill my perfectly working automatic transmission at an abnormally fast rate?
how much power is this engine good for (b4204t i think it is)? i saw someone on youtube with one of these engines that he said was stock that was making something like 400+whp. if its good for more than that, awesome. like i said i only want 200ish whp
and what years of s40's got those 16" mesh rims?
if someone actually knows something about these cars please chime in if my plan to get to that power level sounds bad. i'm not new to modifying cars (i have an e85 powered 2jz big single turbo supra that i built all myself also). i also resurrected the s40 myself, that included replacing the engine, and diagnosing/repairing its various electrical issues. so, i'd say i'm fairly mechanically inclined.
hollow out both cats (i dont need to smog my car, and i dont care about them)
install a post cat o2 sensor spacer (to eliminate the check engine light)
install a manual boost controller
confirm the new boost level with a good boost gauge, and then remove it (i dont want any gauges other than the stock ones showing)
i was thinking 12psi or so should get me in the ballpark of where i want to be
switch to 91 octane (the highest thats readily available here), and my fuel injectors are about 420cc/min stock.
Edited by Juhani.srd, 05 September 2011 - 07:30 AM.