[Jerry Madderra]

The cool collar has been bench tested and shows a 12% reduction in oil temps. road tests on a 911 porsche show about the same . A computer heat sink has to do all the work of cooling , the cool collar is only a secondary cooling element for that extra margine of safety. I have looked onto the possibilty of ducting air to the collar from one of two points , either put a t fitting on the smog air pump and running that to the cool collar or drill a hole in the shrowd and bleed off some air flow to the collar. In any case i don't think it would necessary to vent the air from the eng. bay . Not that much heat added to the vast quanity of air moving through the bay . Jerry 911SC