Thread: Boost leak?
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RarlyL8 RarlyL8 is offline
Crotchety Old Bastard
 
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Join Date: Jan 2000
Location: Huntsville, AL
Posts: 13,422
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I would look at your BOV. Do you hear a metallic "clank" when you blip the throttle?
Any escaping or bypass compressed air will stall the buildup of boost. Your distributor vac port should not be large enough to do this (I actually forgot to plug a small port on the underside of my intercooler once and ran it for a week before I noticed).
Waste gate function is such that it will not open too wide (bleed off too much exhaust gas) but rather open too little, not at all or possibly stick open or shut.
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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 04-15-2010, 08:58 AM
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