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Join Date: Nov 2007
Posts: 63
Waste gate question

Please help with this pic of my waste gate. I was told it's an adjustable one when I purchased the car. Is that true? If so, I suppose the bolt regulates the pressure; screw in = higher presure, back out = lower pressure?

Thanks.
Old 02-09-2014, 01:04 PM
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Chain fence eating turbo
 
Join Date: Dec 2008
Location: Austin, TX
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If it's pushing on the internal spring, yes.
Old 02-09-2014, 01:32 PM
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The reason I'm asking is after installing Brian's straight through exhaust system, which included exhausting the waste gate straight to atmosphere, my boost gauge pegs to the max under hard acceleration. This never happened with the stock exhaust.
Old 02-09-2014, 01:44 PM
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Crotchety Old Bastard
 
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Location: Huntsville, AL
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Verify the hoses are attached correctly and in the right positions. A bit more boost is to be expected as the pressure ratio before and after the turbo have changed, but not that much!
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RarlyL8 Motorsports / M&K Exhaust - 911/930 Exhaust Systems, Turbos, TiAL, CIS Mods/Rebuilds
'78 911SC Widebody, 930 engine, 915 Tranny, K27, SC Cams, RL8 Headers & GT3 Muffler. 350whp @ 0.75bar
Brian B. (256)536-9977 Service@MKExhaust Brian@RarlyL8
Old 02-09-2014, 06:56 PM
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