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RarlyL8 RarlyL8 is offline
Crotchety Old Bastard
 
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Join Date: Jan 2000
Location: Huntsville, AL
Posts: 13,563
Garage
Sure you will know. Drive a mildly modified 930 with stock heat exchangers. Now swap out to shorty headers and drive the car. Now swap to my headers and drive the car.
I've done it. There is a difference. My car now drives like a 3.2L Carrera until the mid-2000rpm range when boost hits and the tires break loose.
There is more to the story than simple tube length. Volume, transition, merging and velocity are key. Turbo selection and cams are a huge influence in driving characteristics.
It is difficult to see improved driveability on a dyno but I plan to do just that when my car gets back on the road.
Heat exchangers will not be an after thought. I need real heat not this luke warm crap that most aftermarket systems call heat. When I DE the car in January with the windows down and have to turn the heat down I'll know we have reached our goal.
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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 10-30-2009, 02:55 PM
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