JakeFusion

iTrader: (7)

So, I was data logging in the heat/traffic today and noticed that my trans temp got to 190 degrees per HPTuners. Most of the time if I could get any airflow it was in the 170s.

I have a B&M SuperCooler 70266 Transmission Cooler w/6AN lines running to my FLT Level 6. It's installed in front of my A/C condenser on the radiator, so it should get good airflow. It's the only cooler I have... but it's fairly large 11" x 8" x 1-1/2".

I have a Circle D 2E 4000 stall... and it's pretty loose. Should I try to get a fan installed on the B&M Cooler or is 190 ok?

What range should I be aiming for?

JRENIGAR

iTrader: (37)

I think 190 is a good temp especially for a stall that big. I remember reading somewhere that around 240 or so is where bad things start to happen to transmission fluid and components. A small electric fan on the front of the cooler itself is also a good idea. I dont think the fluid can get too cool especially in the summer months.

JakeFusion

iTrader: (7)

Yeah, I'm running Valvoline Dexron VI synthetic. I think it handles the heat a little better, but I want to protect the trans.

Whenever I could get out on the open highway 65+ with it locked, I was seeing temps in the 175-178 range.

mrvedit

I run 20F cooler, but then Michigan is cooler too.
Gen 2 cars have a bigger radiator and probably better air flow; my trans cooler is about 130 sq in.
I don't have A/C either.
I run a 180F engine thermostat, 1st fan turns on at 190F, second at 200F.

At what temp do your electric fans turn on?

JakeFusion

iTrader: (7)

I run a BeCool Radiator (without a trans cooler) and a 160-degree thermostat. Fan 1 - 183 and Fan 2 - 187. ECT typically is 185.

kinglt-1

iTrader: (26)

190 is fine

Circle-D

iTrader: (21)

190 is ok assuming it recovers fast. If you are in traffic a lot, adding a fan like you mentioned would be a good idea.

Chris

JakeFusion

iTrader: (7)

Okay. I'll monitor it.

I was also having some lockup issues that day as I was getting misfire after enabling the MAF. No code, but I maxed out all misfire tables and it started locking up again all the time. That wasn't helping.

GMCtrk

iTrader: (23)

I don't like those temps my self, too high. Can you fit a bigger trans cooler? If so, the TruCool 40k is excellent. Keeps my trans at 135-142 in stop and go in 100 degree temps, will touch 170 hot lapping it at the track.

Same cooler on a 5500 lb AWD sierra 4l60 with circle d 4c temp would touch 190 on back to back dig street runs but then come right back down.

01ssreda4

iTrader: (96)

I think those temps are fine, and normal for your combo. However anything you do to get it cooler is better too, but nothing to worry about.