does anyone know what the design differences are between engine oil
coolers and transmission oil coolers?  i was thinking that the engine oil
coolers might be able to handle higher pressures than transmission oil
coolers can.  due to the fact that trans oil is much thinner than the
range of oils that can be used as engine oils.  then i was thinking that
the oil cooler isn't going to see any pressure until the oil is at temp,
thats if you are using a thermostat is the system.

so then i started thinking that i have know idea of how much pressure a
"normal" auto trans pump produces.  does anyone know ball park figures for
auto trans pumps and the relative viscosity of trans fluid at temp?  do
auto transmissions have a thermostat built in or is oil pump through the
cooling system at all times?  i ask all this because i am in the
beginning stages of designing myself a super budget custom oil
cooler system :).

jonathan