Igoverts thread reminded me of something I have to figure out on my bonneville project, and I'll try to keep it short, but I'll fail
Ages ago when I was in the meat of the customization, (
http://www.curtisandkim.com/bonneville.htm for those of you who don't know) I made a choice on the tranny cooler. The radiator I have is an aftermarket aluminum radiator from Griffin that does not have the auto tranny heat exchanger built in. The plan was pretty elaborate. I ran the cooling lines to an inline double filter, then a large 10x18" 4-pass cooling unit with its own 10" fan on a thermostat. I had the thermostat set to come on at about 190.
I was told that my transmission would never get hot enough with that much cooling, but then I was also told that was BS. I had a guy tell me to drive it around the block and then lay my hand on the TC and see if its too cold. Well, I did, and it was certainly warm.
What happens to transmissions if they're run too cold? am I cooling it too much? I have a tranny temp gauge to install; what temps are acceptable on the low end?