quote:

Originally posted by FTI:
One thing you should do is remove the top cooler line and placed in a bottle. it should pump a quart of fluid at idle in less than 30 seconds. No fluid should come from the top fitting on the case!!! Only from the line!!If not there is a flow problem in the cooler circuit. It could be a check valve in pump stuck open,a check valve in cooler,bad cooler line,mix matched pump and input. If this flow is not correct it will affect the performance of the car as well due to this is where converter charge pressure is regulated.

Greg

Yea I did all that, plus changed the pump, input, cooler, lines, valve body yadda yadda and it still ran hot. just gave up and unplugged the sensor and never looked back

I get it. Does the numbers match up as far as et and speed.

Greg

Just a question is this a regular bracket pass or is this a S/C 8.90 pass where you would go on the stop shift come off the stop in high gear finish the run ?

While the application is totally different, on my truck I worked with another member on here who is a high-up at a specific gauge company to do some R&D to verify what he had found.

I run two thermal probes, one in the back of the pan and one in the hot side cooler line. 1/4 NPT Tee block, 6AN to 1/4 adapters, and a 1/4 to 1/8 reducer bung with the probe in it. Probe does not stick into the flow path, fluid passes across the tip.

What we found is that having the probe in the thermally isolated hydraulic line gave a much more realistic, and dynamic, temperature reading. What we also found is that the pan runs about 20-30 degrees cooler than the line, with some variance for cooler styles/types.

Going down the highway at 70 MPH, my glide shows 190 in the pan and 225 in the line. Line temps go up on inclines/under load then go back down, while the pan remains fairly steady since the pan and case acts as a massive heatsink. I'm running a 16 pass tube cooler with 10" fan.

If you think your pan is hot, you probably don't want to know what the fluid actually gets up to. My gauge intentionally stops at 240 degrees...if the line temp goes higher than that, I really don't want to know.

Big Steve for the win, unplug the sensor. Or in my case with no trans temp gauge , no worries....