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fredmeister fredmeister is offline
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Join Date: Oct 2002
Location: Baltimore, MD, USA
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Originally Posted by JBL930 View Post
I don't understand the logic that the engine fan draws air through the intercooler, i'm not saying is is wrong but it doesn't make sense to me.
Surely air will find the easiest route, it would therefore draw it's air from below? I would have thought that the intercooler shrouding to the tail is to force the air being pushed into it by the forward motion of the car, no shrouding and the air would blow all around the intercooler.
Somebody educate me to why i'm wrong (i will not be shocked to find that i am)

Edit: Wouldn't it be a good idea to have a moulded shroud under the intercooler to the fan on the engine, so that the fan REALLY draws air through the intercooler?
Your on the right track. You need to force the engine fan to draw cool air into the engine bay. That is why you must be sure the seals separating the engine from the exhaust side of the car (the road side) are pristine. Someone alluded to this in the post earlier.
The only way then is thru the tail opening.
Now you want to limit air bleeding around the intercooler by sealing it in similar fashion. The only drawback is that you are preheating the air slightly that is now being blown over the engine to cool it, but this is of less effect than providing cool air into the intake manifold via the intercooler.
Of course you need a little free air insie the engine compartment for the air filter box, so you leave some venting in the tail near the air filter opening to let air in for that.
1979 930 Turbo....3.4L, 7.5to1 comp, SC cams, B&B intercooler, Snow Perf water/meth injection, Rarlyl8 headers, Garret GTX turbo, 36mm ported intakes, Innovate Auxbox/LM-1, custom Manually Adjustable wastegate housing (0.8-1.1bar),--running 0.7bar max
---"When you're racing it's life! Anything else either before or after, is just waiting"
Old 02-11-2009, 07:17 AM
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