hi iv got a subaru impreza wrx sti ppp 2003 the 0-60 is 4.6sec im lookin into geting to 4.2secs or lower could any1 help me, is my first subaru its a ppp what mods would i need for the upgrade, and iv got some plans thinking would it hit 350 bhp and would it hit 4.2s

remap ecu tek
green airfilter
full 3inch all the way
manifold
wallbro fullpum
ngk
if iv missed anyting please fill in

 

I've got almost the same car, bue without the PPP. Mine came with a decat 3' straight, wallbro pump and ecu tek. I've donr bits here and there, and now its running 357bhp.
The first thing to go though was the clutch, it's expensive to replace mainly due to labour, deff. worth an upgrade.
Also, when it's servieced, and a cam belt is due, replace that aswell as your plugs. Worth doing it once and then not again..lol

 

You will need to show no mechanical sympathy to your car to get it down to 4.2. If i was you id start losing some weight of the lardy newage.

 

You say 0-60 in 4.6 Have you actually achieved that or are you quoting the Prodrive blurb? To lose 0.4 sec you will probably need an extra 80bhp or more! It's the law of diminishing returns, I'm afraid.

JohnD

 

225 35 17 sorted

 

thank everyone bigbob u got a nice pack there, im look for the same set up.

 

Why 4.2 or less?

 

Exactly my thoughts!! It's about in gear times not the 0-60 sh1te

 

I guess it's a benchmark figure that everyone recognises?

JohnD

 

True. Still sounds the same as the usual pub talk....."mine's got 500Bhp on a TD04 @ does 0-60 in 2.3 seconds & a standing quarter in 8 seconds"!!

YAWWWWWWWWWWWWWWWWWWWWN

 

0-60 is only good for the drag strip, and then even there you spin too much

The biggest one to get down is the 60-100mph time - the difference between 0-60 of 4.6 and 4.2 is hard to even catch. But once going the extra power pulls the car lengths.