trans temp sender location
 

Racers,

is anyone monitoring the cooler line outlet temp? [that is to say, the fluid temp as it exits the case] If so, tell me how you did the plumbing and did you learn anything useful?

Thank You

Re: trans temp sender location
 

Larry, I don't see many racers monitoring the trans temperature and there are many that don't even use a trans cooler.

If you plan to do so, I recommend you use something similar to the Peterson Fluid Systems sender plumbing with a smaller size line.

http://www.petersonfluidsys.com/plumb_inline.html

Re: trans temp sender location
 

I have a trans temp gauge in my car but the sender is in the pan. And I use a cooler as well. 200 - 250 is common on my car.

Re: trans temp sender location
 

You will be measuring the highest fluid temperature coming out of the transmission. Most production transmission run the outlet oil from the torque converter directly to the cooler.

Re: trans temp sender location
 

Larry,

I did this years ago on my 10.90/bracket car. Used a oversize brass 3 way fitting, bushed it down for the #6 braided hose I was using in and out. Dont remember the exact size, but was big enough that the probe in the center fitting did not hurt flow any...
I did this back before I was using synthetic fluid. Was setting up for .00x lights and trans temp/converter temp made a difference. Also impacted et's, but I used it more for my reaction time changes.
After I went to synthetic fluid, temps did not move as much, and did not seem to be as critical.
Just monitor pan temps now. But, also foot braking and not setting up for .oox's anymore either.

Look forward to seeing you soon.

Ken

Stock 412

Re: trans temp sender location
 

Ken, Thanks

We plan to test at Ennis July 25 and a date or two in August. Then the Lucas race in September at Thunder Road. be sure to look me up.

Re: trans temp sender location
 

The transmission fluid is at it's hottest at the stator. Unless you can place a thermocouple at the stator, the outlet side of the transmission cooling line going to the auxilary cooler or the radiator in-tank cooler is the best place. Place the probe as close to the transmission as best you can. Also, try to keep the probe away from an outside heat source such as the headers which could potentially give you a false reading.

Re: trans temp sender location
 

Are you going to come to Noble in October?

Re: trans temp sender location
 

Colby, most likely yes :) If you are there please be sure to look me up.

Re: trans temp sender location
 

We don't see any reason to monitor it there. Just in the pan. You want to see an overall situation of the temp. Not the hottest coming out of the converter. You are usually the hottest at some point after the run once all the hot fluid out of the converter has mixed in the pan.

To us cooler pressure is more important. It affects converter flash and coupling to a point. If you have two transmissions and one has 40 psi cooler pressure one has 80....the same converter will act different.

There is a ton of adapter fittings though with 1/8th NPT holes and -6 to -6 etc

http://www.summitracing.com/search/b...=npt%20fitting