Isoproturon

Can someone please tell me what a standard 93WRX Impreza would run in terms of boost pressure ? Mine is showing about 1.0bar or so, is this standard?

Thanks.

dj219957

No it is not standard boost you have there.

standard is 11.47psi, dropping to 9.47psi at 6600rpm. With Fuel-cut @ 14.87psi. - about 0.79 psi

Isoproturon

Thanks, a table I have just checked shows that 15psi = 1bar, so I am wondering what mods have been done to the car before I got it.

Scott.T

iTrader: (2)

have a look inside the ECU. If running 1 bar I expect there will be an additional chip in there (probably with a label on it). If not then there must be a boost controller somewhere. Either electronic or mechanical.

Isoproturon

Excuse me for being thick, but where would I find the ECU on an Impreza ?

Thanks.

Scott.T

iTrader: (2)

Passenger side footwell.
Pull carpet back and remove ally kickplate (4-Off 10mm nute/bolts)
ECU is under there.....

Roojai

Be careful with philips screw driver when opening, those screws are made of putty and have been threadlocked.

Isoproturon

Cheers, will have a look and see. Sounds like something has been done to it though the people I bought it off said there were no mods other than the exhaust and suspension.