Quote:
Originally Posted by jaykay
Why would an oil to coolant htxchr be helpful to any great degree on track? I would imagine the differential temperature would be quite useless in driving heat transfer from the oil when things get hot.
An oil to air htxchr is what would work to cool oil.....just like what has been used on ic engines for decades
|
One word: efficiency. Because liquid heat exchangers are more efficient at transferring heat than oil to air units, they can be much smaller. To use an oil to air unit that has the heat transfer capability of an S cooler, you would need one that would be more than three times the size of the oil to water unit, and then the question becomes where would you put it so it got enough air flow over it, keeping in mind that the oil pump in these engines preclude running it at the front of the car. People seem to forget that there is often a 30-40 degree temperature differential between the coolant (even when hot) and the oil, so there is plenty of temperature difference to accomplish cooling the oil.