How hot do your trannys run??
How hot do your trannys run?? 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?
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?
Originally Posted by 99ssleeper
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?
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?
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.
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
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
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TECH Apprentice
Joined: Apr 2002
Posts: 358
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From: Mahwah, NJ
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.
problem and wondering if it is related to cool trans/fluid temp.
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Verdad Gallardo 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.
