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copbait73 copbait73 is offline
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Join Date: Nov 2003
Location: Chesterfield IN
Posts: 1,316
For starters, the most efficient charge air cooler (CAC) has the most temperature drop while impacting pressure the least amount.

Side to side generally works best overall because at some distance past the entrance to the core most of the heat is removed and there is very little to be gained by traveling any further but something to be lost, pressure. This desired distance varies of course by how much heat is present in the gases at the entrance to the core.

Long(er) distance is needed if you have a killer HP turbo motor because the high boost introduces higher starting temperatures to the core, therefore a longer passage is needed to get the cooling accomplished.

My only comment regarding the two high HP subjects is that they are more properly sized for their intended use vs. many of the aftermarket CAC which frankly are oversized for the light duty most are exposed to pulling stoplight racer duty. But hey, if it wasn’t for the imposing size, how many guys would pay up to $2000 for something that only gives 20-30HP.
Old 02-10-2010, 05:34 PM
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