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mark houghton mark houghton is offline
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Join Date: Jul 2008
Location: Central Washington State
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Originally Posted by Benny771 View Post
Origional wastegate? Diaphram leak?
A diaphram leak usually raises it's ugly head as the WG not opening and an overboost situation.

I would look at whatever you're using for a BOV, whether the stock recirculation valve assembly or aftermarket gizzmo you may have installed. You're only getting about .5 bar boost, what's up with that?

As your boost begins to bleed off, how is the car sounding/running? Pouring black smoke out the tailpipe, anything like that? O'ring seal on IC "popping off" on boost?
Mark H. 1987 930, GP White, Wevo shifter, Borla exhaust, stock everything else. The result of a massive Pelicanite good will fire recovery effort. Truely an open book, ready for the slippery slopes to modification.
Old 09-01-2011, 05:11 PM
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