View Full Version : Transmission Temperature Sensor Addition
Blwalker105
11-09-2019, 06:55 PM
I'm in the process of integrating a quad set of SpeedHut gauges around my instrument cluster (kudos to Mechie3) and am interested in knowing if anyone has added a transmission temperature sensor to the factory 5-speed tranny, and if so, where? I am thinking of drilling and tapping a suitable location about 4"-5" behind the passenger-side axle outlet in an empty 2"-3" aluminum quadrant. Any better ideas?
Hobby Racer
11-09-2019, 07:05 PM
Yes, use the drain plug!
117311
Check out my build thread here (https://thefactoryfiveforum.com/showthread.php?23199-John-s-EZ36R-H6-818R-Build&p=294114&viewfull=1#post294114)for the details.
Blwalker105
11-10-2019, 09:30 AM
Thanks, Hobby Racer!
Brd.Prey
11-15-2019, 04:56 PM
I was thinking of welding a bung on right next to the drain plug. But I have the 6 speed. It has a little like oil pan.
Brd.Prey
12-07-2019, 05:55 PM
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Canadian818
12-25-2019, 01:23 PM
Very curious as to how hot it gets. Mine was hot to the touch after a 20 minute ride on the highway, but that’s not telling me much. I expect they run quite hot on track for sure. I have an in-line thermo-switch I’m going to use with a cooler on mine.
Hobby Racer
12-25-2019, 09:06 PM
I'm swapping over to a 6 speed this winter and doing the same. A thermal bypass valve to the external cooler. Bypasses the cooler when the temp is below 180F and opens the circuit to the cooler when the temp gets over 180F. It also makes it super easy to put in a temp sensor when you have an external cooler.
When I recorded temps on my 5 speed (https://thefactoryfiveforum.com/showthread.php?29955-5MT-transmissions-NEED-an-oil-cooler-when-driven-hard!) before I added the external cooler it was quite hot, in excess of 280F after a long track session.