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RarlyL8 RarlyL8 is offline
Crotchety Old Bastard
 
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Join Date: Jan 2000
Location: Huntsville, AL
Posts: 14,082
Garage
I built a shroud for my intercooler as I knew air was going around it instead of through it.
HUGE difference. At idle I can put my hand on the intercooler and feel the air pulling it down. I left a slot near the air filter which the fan also pulls air in right past the filter. The filter now gets more dirty in that spot where before it got dirty from behind as air swirled around the engine bay.
My vote is to seal up the engine compartment and intercooler first and see how it does for you. It has worked very well in my application. Turbo lag has been noticably reduced and power increased. Dyno runs suffer however as the lid is open.
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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 02-11-2009, 09:59 AM
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