Acceptable trans temps?
#1
Acceptable trans temps?
I have my sending unit in the line going to the cooler.
This is a freshly rebuilt 4L80E and it seems to get hotter than the 60 did, but I had the sender in the pressure port on the old trans.
I'm seeing temps between 220 & 230. Granted it is over 90 deg here, and I've been doing some "spirited" driving, but it seems a little on the hot side, but I really don't know.
What temps are you guys seeing with the sender in the same place.
What temps should I see if I move the sender to the return line?
TIA
Craig
This is a freshly rebuilt 4L80E and it seems to get hotter than the 60 did, but I had the sender in the pressure port on the old trans.
I'm seeing temps between 220 & 230. Granted it is over 90 deg here, and I've been doing some "spirited" driving, but it seems a little on the hot side, but I really don't know.
What temps are you guys seeing with the sender in the same place.
What temps should I see if I move the sender to the return line?
TIA
Craig
#4
11 Second Club
iTrader: (19)
I have my sender in the same spot and my temps stay around 150-160 while cruising. In stop and go traffic with 95* weather, I get up to about 180-185. I run two coolers with a Yank SS4000.
I would think the return line would be a waste....you want to know how hot you get, not how cool.
I would think the return line would be a waste....you want to know how hot you get, not how cool.
#5
LS1Tech Sponsor
iTrader: (25)
The temps you are seeing where you have the sender located are acceptable . Cooler is better but if those are the highest temps your seeing I would not worry since the fluild being returned and in the pan would be considerably cooler. I do agree putting in the return line would not be a good idea since these would be the coolest temps in the circuit.
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Last edited by performabuilt; 06-16-2007 at 10:17 AM.
#6
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FWIW there's a great chart on my B&M trans cooler box. Around 280 Fahrenheit is where ATF begins to form varnish. So 260 degrees and above is a critical range and should be avoided.