Trans temp gauge

[ronbuick]

MSD, I just ordered the gauge and sender from Dakota Digital, and I was wondering about the ground, I will prolly use silver solder and put a dab on the tee and stick a wire to it and go from there, thanks.

Ron

 

[MSDGN]

That's what I did...you can't see the ground wire in the pic because it's on the other side of the brass tee...I then just put a ring terminal on the end of the wire and attached it to the same spot on the fender where the battery has the smaller black ground wire attached...

 

[tom h]

I would have thought to put a temp sensor in the OUTPUT of the trans fluid line, before it gets cooled. If the cooler is working well, you'll always see cool fluid temps, no matter what the trans is doing.

The water temp is measured after the engine and before the radiator - -why not same with trans fluid?

 

[MSDGN]

Guess it's preference but I would rather see temps of the fluid that is going into the trans(after the trans coolers)...that way if I see unusually high temps I know something isn't right...either the coolers aren't working or the trans is overheating big time...

 

[Firechicken]

I would have thought to put a temp sensor in the OUTPUT of the trans fluid line, before it gets cooled. If the cooler is working well, you'll always see cool fluid temps, no matter what the trans is doing.

The water temp is measured after the engine and before the radiator - -why not same with trans fluid?

The reason is contained in the quote above from Bruce. The output line is the hot oil coming out of the converter, and is not indicative of the clutch temps. Taking the temp from the return line is showing what the temp of the oil is that is reaching the clutches.

 

[Yedi]

Man, if you've ever riden in a car that has one of Bruce's Transmission (Like my car does) I'm pretty sure you would not question what the man says, his transmissions are just awesome, took my buddy for a ride today and all he did the entire time was smile and go thats "$#&^(* Awesome!"

Bottom line If Bruce says to put it on the return line, put it there. It makes sense, that is the temp that the tranny is seeing, NOT what is coming out of it to be cooled. just my thought/experience.

 

[tom h]

well... here's another contrarian comment -

Trans fluid may "break down" and get damaged by the highest temperatures it "sees" ... which would be after the converter . To properly measure the "highest temperature", implies fluid temp should be measured before the cooler, not after.

I don't have the experience of the established transmission experts, but at least consider the pros/cons ...

 

[Yedi]

tom h,
I agree w/ the whole highest temp the fluid see's thing. Honestly, I guess the best thing to do in a perfect world would be to have 2 gauges, one before the cooler and 1 after the cooler. Hey It's better to have a gauge than to have no gauge.