#Aftermarket transmission cooler full
There are two graphs here, one above the other, same timeline.Įdit: I also included the file name and date in the screen graph just for full transparency. Here’s that first log in graph form (I know you hate graphs Count!). This made me believe the OEM liquid to liquid heat exchanger was quite weak. I’m estimating it’d take another 15 minutes of highway or 10 minutes of city driving to bring the temps up to the point where the hot coolant fluid would draw heat out of the ATF fluid. In that time, 906 seconds to be exact, the fluid temps didn’t even reach 60C and came in far short of the 90-95C stabilization temp range. I have a 15-20 minute drive to work, 30% city, 70% highway. I was pretty shocked at just how long the fluid needed to come up to temperature. The high on that day was 79 degrees (thanks Google!). I knew how long it took the oil to come up to temperature but I was curious about the transmission. So here’s one of the FIRST logs I ever did of transmission temperatures. While the clutch has it’s own “thermostat” in the form of a check valve, having a large pool of cool ATF fluid helps keep clutch temps in check too. The clutch, in particular, seems to generate most of the heat. City driving with stop and go, car in gear at stoplights, will heat up the fluid quite quickly. It’ll take an additional 15 minutes of driving. The ATF temps, however, after 15 minutes of highway driving, will not reach their stabilized plateau of about 90C. My oil temps generally reach 140F within two miles and before I get on the highway. On a normal day, my coolant will reach operating temps well within two miles of city driving. The first thing which sort of stunned me was how long it took to heat up the ATF fluid. Will be a shame, may need to head out to my secret test site and use the Dragy.Īnyway, I’ve had a few questions lately on the RMR kit and I thought I’d go back and look at some graphs with the OEM cooler. The high is supposed to be 60F which is just about perfect between nice cool temps and the track getting too cold. So they may not be having test and tune at the drag strip tomorrow.
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