99ssleeper

iTrader: (98)

It has been in the low 50s here during the day and about 37° when the sun does down....I have an Autometer guage, deep GM pan, and a 24K B&M cooler...on the highway at night the trans temps are at about 110°. The hottest I have seen so far (around town) is about 155° and that is when I am messing around.

Are these temps normal?


Also, is there a certain temperature that the fluid has to reach before the converter will lock? What governs the converter locking?

99ssleeper

iTrader: (98)

So nobody has any clue?

****** amazing....

Sunset01

Relax a little.

If I recall correctly, I was logging about 70C pretty steady with my Midwest 3200 stall.


Dean

Casper9T9

iTrader: (1)

On the highway its usually 150*, and 170-190* in heavy traffic. These are on 70*-80* days.

Ed Blown Vert

iTrader: (2)

Yep

DrkPhx

iTrader: (15)

That's right where it should be. Mine is about the same on a cold winter day when the car is at full operating temp. At the track I've seen it spike from 153 degrees to 171 degrees at the end of the run on a hot Summer day ( last July at BIR Show n Go).


TCC ( Torque Converter Clutch) lockup depends on:

* Minimum ECT (Engine coolant temp) of 149 F
* Usually min car speed of 30 mph
* Throttle position of mid-range (not heavy acceleration or decelearation).

I snuck my car out on a couple of extremely cold days and the TC did not lock up. It took some driving to warm it up (iwarm idle did not work).

Also the TCC will unlock if the Transmission temp reaches over 263 F.

Hope this helps.

99ssleeper

iTrader: (98)

I'm relaxed...I just figured someone would have replied w/in 3 days...anyway...thanks everyone for sharing the info. I expect the temps to go up some as it gets warmer out...just wondering if you can run the fluid 'too cold' and if thats a bad thing. So far everything operated perfectly.


Hey BLKTA...are you Gino, from University? I judging by the C5 wheels and the BLKTA name What size stall and brand do you have?


-Mike

Sunset01

Well, in the current 30s-40s F at nite we are having, I run in the 50s C for a good while after the coolant has come up to temp. It takes of while of driving to get to about 68C. 68 *9/5 +32 = 154 F. I have a short shifting
problem and wondering if it is related to cool trans/fluid temp.

DrkPhx

iTrader: (15)

99SSleeper - That's me. I'm running a very old Yank Y3200 with a 1.86 STR. It was a good street/strip converter from 4 years ago, but is pretty much outdated now. I usually cut 1.80 60-fts on Nittos or ET Streets. I wouldn't worry too much about too cold of tranny fluid; the tranny will generate plenty of heat even with a big cooler.