Tranny Fluid Temps: Any Thoughts?
I found the article in the last TDR magazine interesting enough to get off the dime and buy a guage for the tranny. I used the dipstick sensor method for its ease and low cost. After about 1000 miles of various driving conditions, I've found that the temps follow a fairly consistant pattern. After things have warmed up and I'm driving a constant highway speed, the guage reads 130 degrees F for hours on end. If I get off the highway and drive stop & go or in 1, 2, or 3 unlocked, the temps will go up to about 150 degrees F. In a real stop & go jam for about 1/2 hour, the temps got up to about 190 degrees F. No air through the coolers there.
I know that the temps in the pan are going to be cooler than temps coming out of the tranny and warmer than temps coming out of the last cooler. How much, I don't know. Do these in-the-pan temp readings seem normal? I don't tow and keep less than a 1000 pounds in the bed. Also, I bypassed the radiator coolant-to-ATF cooler and installed an air-to-ATF cooler in its place. I've also installed a fairly large air-to-ATF cooler under the cab. It's routed in-line between the front grill cooler and the re-entry into the tranny. The pan is a Mag-Hytec DD unit.
I'm going to get "trends" and "averages" here with this method, but am I going to miss a "spike" that will damage the ATF? Ideas?
__________________
'95 2500 SLT, clubcab, 2wd, longbed, a/t, 3.54 LS, camper shell, Custom "100" plate, DDP 2's, boost- egt- and trans-temp guages, DTT master upgrade by Chip's Trans, Frantz bypass oil filter, K&N in holy airbox, Jardine 4" turbo-back exhaust, Tekonsha brake controller, chevy 3500 brake cylinders.
|
Linear Mode
