Re: 55 Packard Transmission Cooler Mockup ?

Posted by Owen_Dyneto On 2009/12/13 14:27:46

Thanks Dave, Randy and I both appreciate your comment and thoughts. Another issue to think about along the lines you mention is that excessively cooled fluid will resist flow more which could have a detrmental affect on lubrication efficiency, so in the end it's all a balancing act. I think you hit it right on the head, the OE can maintain a range, heating when (and if?) necessary, which an air cooler cannot. How relevant that is has yet to be determined, at least to me.

I have a thermocouple which I'm thinking about feeding thru the fresh air vent and down the trans dip stick tube into the pan, and setting up a recorder on the front seat to get some actual data. I'm running just a radiator-mounted cooler on the basis of a recommendation of my TU rebuilder, but there are many other 56s running around the neighborhood with the original cooler so that it should be easy to get some hard comparative data, though it will take some time to collect the data from both cars under similar operating conditions.