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RarlyL8 RarlyL8 is offline
Crotchety Old Bastard
 
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Join Date: Jan 2000
Location: Huntsville, AL
Posts: 14,043
Garage
Diminishing returns begin at 400WHP.
At that point you are looking at raising boost level and redline which will require replacing the rod bolts and head studs. Opening up the ports and changing cams will delay the need to raise boost and redline but still require opening the engine.
Typical 350WHP/400CHP build on stock engine:
> headers
> larger turbo
> free flowing muffler
> 1.0bar boost
> oversized intercooler
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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 11-15-2010, 06:38 PM
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