727 Temperature Sender Placement

[j-c-c-62]

A thought about the sensor located in the return line. The fluid is the hottest as it returns out of the forward cooler line. As the converter fluid directly exits there. Actual operating temperature in the pan is a closer number.
Doug

I did not read were anyone here suggested measuring oil temp in the return tine, and not sure why. Also am puzzled by the in bold comment above., care to explain?

 

[dvw]

I did not read were anyone here suggested measuring oil temp in the return tine, and not sure why. Also am puzzled by the in bold comment above., care to explain?

I said that my street car is set up that way.
Which is the same thing mentioned in post #6?

Why not sense the temp of the oil the factory designed as needing cooling in the first place?
The line leading to the OEM trans cooler?
Doug

 

[j-c-c-62]

I said that my street car is set up that way.
Which is the same thing mentioned in post #6?

My question was "why", unless the point is one wants to measure how effective a trans cooler might be at different speeds, and that seems in this context IMO that is rather secondary.

I am still puzzled about the marked bold comment of how temp is hotter as it returns from the cooler?

 

[RemCharger]

My question was "why", unless the point is one wants to measure how effective a trans cooler might be at different speeds, and that seems in this context IMO that is rather secondary.

I am still puzzled about the marked bold comment of how temp is hotter as it returns from the cooler?

Pretty sure he meant it's hottest leaving the trans to the cooler.. which is the fact. And I also agree that the temp of the fluid in the sump that the trans will ingest is more important than the pre- cooled temp of fluid coming out of the converter.

 

[j-c-c-62]

Pretty sure he meant it's hottest leaving the trans to the cooler.. which is the fact. And I also agree that the temp of the fluid in the sump that the trans will ingest is more important than the pre- cooled temp of fluid coming out of the converter.

OK, but why? The fluid degrades more at higher temperatures, don't you ultimately want to know the highest temp it is being subjected to (I'm assuming the convertor heats it the most in non-lock up conditions, since it has nearly all the oil shearing)?

 

[dvw]

I didn't realize it was bold. He'll i don't even know how I did that, lol. When the street car got a temp gauge I didn't have access to a welder. So in the line it went. Gone to putting them in the pan since. Especially racecars. For sure detting at the line against the converte is going to drive up.the temperature. I'm more interested in the temp of the fluid reserve in the pan. No argument was being made.
Doug