Technical > Dan Dishon's Transmission Den

Powerglide cooler bypass valve

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masracingtd1167:
My personal opinion is that you don't even need a cooler ! If you are hot lapping and making 10 runs a day then you might need one !

dusterdave173:
I AGREE
If you are not lapping in a bracket race then just loop it and carry on
When we tested with trans temp converter on a bracket car the temp would climb almost 100 degrees for every second on the transbrake then drop like a rock as soon as button was released--you need that temp gauge for one race then you know from then on what is happening--Hot lapping with a brake is tough but what we usually do in these cars you have so much time between rounds that a cooler is just not needed IMO

THE FRENCHTOWN FLYER:
I agree - in a bracket car if you go many rounds the trans will get hot enough for smoke to come out the breather. I solved it with a Hayden cooler and a small bilge fan (the type used by roundy-round racers to cool brake rotors). The fan was controlled through a relay and an inline temp sensor set to come on above 155 degrees. About as compact as a school lunchbox. It handled my 5500 stall 8 inch converter fine.

Scuzme:
Hey thanks Guys for all your info. I will rebuild the Trans and run it and get some baseline temps and pressures and see how we go.

   Cheers and thanks for your help.

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