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RarlyL8 RarlyL8 is offline
Crotchety Old Bastard
 
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Join Date: Jan 2000
Location: Huntsville, AL
Posts: 14,101
Garage
I'll throw in a few suggestions even though you used the F word, ha!
HOW does your engine falter at 4K? Teeth in glass, bucking, or slow power loss?
> Teeth in glass - overboost switch activated
> Bucking - fuel pump, ignition
> Power loss - BOV, fuel pump, O-rings
These are generalities, need more info to hone in on it.
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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 06-10-2012, 09:59 AM
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