1996 Wrx Sti
When i was test driving the car, it was boosting to 0.9 bar, once i bought the car the gauge (greddy) was taken off as it wasnt a part of a deal.

Fitted the boost gauge (greddy) 2 days ago and i only seem to be able to get 0.7 of a bar . Everything else was kept as is.

I plumbed into the tube that goes from the top of the aftermarket dump valve and into the manifold as it already had a connector in there, so i supposed the boost gauge was previously connected there.

However i did use a 1/8" T piece, can this be causing this as its too restrictive, or it shouldnt matter ?

 

Or is 0.75 a normal boost for a standard wrx sti that age ? Spoke to the previous owner and he seems to think that it was never boosting 0.9 either..

 

noone knows what is the standard boost on classic wrx sti ? : /

 

not likely to be 0.75 as that would be lower than the first wrxs (they were 0.8bar).
Does the car feel as quick?
if so i would check the boost gauge pipework.

 

possible leak from where the previous owner has disturbed somthing ? 0.9 thats just under a bar so thats not to low imo ? im no expert befor i get ripped apart lol .

 

Where are the usual boost leaks from and how to test for them ?
The car feels a bit slower than when i got it, but it maybe that i got used to it..
Cheers

 

Is it possible that its just the actuator that got weaker with time ?

 

Check all connections from the turbo, to the intercooler, in to the engine. Watch the pipe and gasket under the intercooler

 

or maybe its the diffrence between two guages ? and a little paronoid ?

 

Is the maximum boost the same in all the gears? My MY99 goes up to 1.0 bar in the higher gears such as 3,4 and 5 but gears 1 and 2 don't have as much boost.

 

No boost is normally limited in 1st gear definately.