Anyone here running a stock STi V4 or know what the boost is supposed to be? Mine was running 15-15.5. I tried changing the line that goes back to the intake with a more open one and I may have gained 0.5 PSI. That's it.

Anyone know the correct ECU-reset procedure for this car? I assume my wiring is done close enough to stock to make it run that way.

-Michael

 

Well I finally found the answer on another group. It's officially supposed to be 14.9 but that depends upon where you measure it. I'm 0.6PSI off. I'm now building my own Dawes type device so I can pump boost up to 17.5 PSI (1.2bar).

-Michael

 

its meant to be 1.1 bar as standard(stock) i think.

Tim

 

1.1 Bar is standard.

I have been playing with the boost on mine....

1st setup = 1.35 Bar = 18.9 Boost

Had problems with det in 5th, my knock link lit up like a christmas tree. Yu dont really gain anyway ...just a quicker spool up then the ecu retards ignition in response to knock..... no rough cut on a STiV.

Final set-up = Peak 1.2 Bar = 16.8 psi
Held = 1.1 Bar = 15.4 psi

I made the changes by altering the orifice in the bleed back turbo to the wastegate. This is fixed and I only have 1 green LED on the knock link

This gives great peace of mind regardless of how much abuse I give it

l8r

Julian