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RarlyL8 RarlyL8 is offline
Crotchety Old Bastard
 
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Join Date: Jan 2000
Location: Huntsville, AL
Posts: 13,308
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You can tune out the shut down issues. A change in timing will allow the turbo to spin longer after shutdown and end in a subtle "pop". You will know your timing is right when that quirk goes away.

The idle A/F ratio can be checked and adjusted using a Gunson Gas Tester that calculates CO%. They go for $100 used typically and are very easy to use with a little patience.
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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 03-31-2007, 08:54 AM
  Pelican Parts Technical Article Directory    Reply With Quote #10 (permalink)