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WERK I WERK I is offline
Forced Induction Junkie
WERK I's Avatar
Join Date: Jan 2003
Location: Wisconsin
Posts: 3,291
Originally posted by 930turbo
I conducted an experiment today. I disconnected and plugged the MAP line to the waste gate to see if my car was capable of generating more than .7 bar unregulated, it does not. With the wastegate disabled, I still get no more than .7 bar boost. My O2 sensor is indicating .970 volts under full boost which should be reasonably close. Is it possible the turbo itself is failing? It doesn't smoke or make any unusual noises. Is there anything else that would limit the boost/power output? I'm still stumped.

Did you plug the vent side of the wastegate, too?
If you didn't, you should, but be extremely careful. Boost spikes happen very fast!
'85 930 Factory Special Wishes Flachbau
Werk I Zuffenhausen 3.3l/330BHP Engine with Sonderwunsch Cams, FabSpeed Headers, Kokeln IC, Twin Plugged Electromotive Crankfire, Tial Wastegate(0.8 Bar), K27 Hybrid Turbo, Ruf Twin-tip Muffler, Fikse FM-5's 8&10x17, 8:41 R&P
Old 03-21-2007, 09:53 AM
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