Phildodd06

Right i think i have an air leak, i hit full boost, thn it starts to drop, full boost 1.1 bar (some times it over boosts, but then drops back down to 1.1) thn down to 0.9-1 bar

WRX STI Type-R MY99 Standard engine and turbo, not remaped.

Any ideas? i wanna run it at the Pod this wknd.

Ian

iTrader: (10)

if it is standard turbo, i shouldnt think it will hold full boost up to the red line, you will find it peeks then starts to drop. think most turbo cars do this when standard

Paulo P

iTrader: (42)

Boost should peak and then drop off.

Phildodd06

Yea, it peaks, thn as i go round the rev range, it slowly drops off, which is usually around 6k rpm

I have never really payed that much attention to it, and when i started comparing it to the boost gauge in the turbo timer, i thought it was weird to drop boost.
Sounds like im being the usual paranoid Impreza owner thinking 'catch the problem before it causes another problem'