boost leak?

[trikdaddy720]

i have a '91 eagle talon Tsi AWD. so foar i have a big 16g turbo,255 walbro pump, greddy exhaust, apexi' AFC, 2gen manifold, tmo stage 3 chip, and the classic hall man boost controller..... but i have a problem. every time i hit the gas and try to turn up boost i get a big boost leak.
even if i have my boost controller set for the highest boost level i only get about 8 psi insted of full boost. what can possibly be leaking?????????????

Adnan

[AeroEclipse]

get a silicone coupling, a PVC endcap from home depot and a valve stem and make a leak tester. Thats the only way you'll REALLY be able to tell.
Or you could just check all the couplings and connections

[9192tsi]

do you have an aftermarket boost gauge? if your going by your stock gauge it wont read the correct boost pressur with those mods

[96TSi]

a simple kpa/psi guage will tell you your exact boost levels. dont go buy one from some expensive magazine...