Air Leak

[Kryostaisis]

i know this is a stupid question, but can a leak from the turbo flange comming off from the exhaust manifold make your boost play around?

got a problem with boost, it climbs from .8bar @4000rpm to .95bar @5000rpm, and then drops off back to .85bar at top end... coudl this be due to a leak?

any help would be much appreciated

Edited April 10, 2006 by Kryostaisis

[Guilt-Toy]

a leak from the flange can cause it to play up yes. it will come on boost later and sound like crap as well.

Fix the leak and once you put it back together give it a go. only way to know

[WazR32GTSt]

hiow do you know there's a leak there? or are you just searching for possible causes and this one came up as likely?

[Kryostaisis]

i can hear a whistling sound comming from the exhaust housing of the turbo, or near there, all i can think of is the gasket that was used, its the usual t3 flange gasket but its rediculously thin

boost comes on and sit at .7 but then climbs like all hell and drops off again, have no power till 6000rpm wtf!!

also same thing happening with my mates silvia, but his gets to .9bar and at 4000rpm it slowly drops off to .55bar, and when it starts to drop there is no power

any help people?