hey does anyone know what the stock hp limits are on a srt4?
ive got a friend that wants to turn up the boost and do some other mods and we were wondering what the stock limits were. thanks for any help guys!

 

well myself personally have been to 450-475 on the stock motor. you need a big turbo, lots of bolt ons, a good tune, and most important is meth/ race gas. there is alot involved when going that High in HP, and I dont really reccomend it unless you know what your doing. you have to monitor Air fuel ratios, knock, timing, and so on.......

 

that i can do! ^^^
what are you using for tuning?

 

and what kinda boost?

 

anyone know the exact limits? need help here!

 

people do 500whp all day on stock internals, but they wont last that long. You will need to run a .50 trim or higher turbo. 28psi on meth/water mix with race gas, every possible bolt on, 750cc injectors big fuel rail, returnline, upgraded fuel pump. Mine was acheived on a SAFC neo, but its probably better to go stand alone like diablo sport, SCT, or AEM EMS. You need a DCR oil system upgrade and remove the balance shafts

 

lets say we run 20 psi, water/meth injection, upgraded turbo, safc or standalone, upgraded intercooler and piping, ssqv bov, bigger injectors, and an intercooler sprayer. you think it would be fine?

 

don't forget about exh. and a returnline. you have to be able to turn down the fuel pressure with those injectors, otherwise you will be running too much fuel and cause knock. which will pull timing.

 

here is a complete list of what you will need:

Big turbo kit .50 trim or higher (20+psi) gets you around 400 whp
750cc injectors
fuel returnline
all three intercooler hardpipes
big Frount mount intercooler
3" turboback exhaust
something to tune SAFC/standalone
meth/water (to be safe, but not needed)

 

so the return line is a MUST right?
how hard is it to install?