Chad, thanks. I'm concerned about the same issues. I really don't have another area to stick a cooler that I can think of. Space is an issue to say the least. I could probably stick it in the engine compartment behind one of hte headlight buckets "maybe" but there is no air flow and the effectiveness of the cooler would be suspect to say the least. The Bull run car has that PRC cooler (I think) but it is mounted in front of the radiator without the fan. I agree that assuming that the unit is mounted at the correct spacement (maybe an inch or less) in front of the rad I'm better off using the integrated shroud/fan on the back of the rad to pull air through than anything else. I think I could have two results from it.
I think it's possible that during track time, I'd see reduced overall temps as airflow and lowered oil temps would reduce overall operating temps. However it's also possible that in "street" traffic kind of driving, I could end up with higher water temps due to the loss of heat exchange in the radiator but not enough airflow.
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