hey guys ive fitted a z20 let into my astra coupe. its all running sweet all bar a slight blow from the pre-cat atm.(ive gotta do it tomorow)
ive fitted a boost gauge to it. it all runs off the throttle bady. ive disconnected all the pipes at the back and run everthing from the throttle ody like it said on thread in here.
its running 9 psi of boost which it holds. i will go upto 10 and sometimes fluctuate between 9 and 7.
my mate had a gsi which wen standard pull'd 11 psi
is mine ok? any ideas?
maybe boost leak or?
thanks in advance boys