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RarlyL8 RarlyL8 is offline
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Join Date: Jan 2000
Location: Huntsville, AL
Posts: 13,410
Garage
It is not uncommon for the stock overboost switch to trigger when using a 1.0bar spring. Any small boost spike will hit the limit. You also have the variables of spring rate and aging electrical components that may no longer be working within specs.

A controller of some sort would restore some protection from overboost and isolate the boost signal function to newer electronics that should be less prone to weakness or failure.
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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 06-15-2007, 05:57 PM
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