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Old Jun 2, 2018 | 09:59 PM
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Default 210 transmission temp

Is it normal for a transmission running a 3200 stall, shift kit, and B&M 70264 cooler to be running the same temp as the cars coolant?
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Old Jun 3, 2018 | 01:33 AM
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No. I run a 4,000 stall with a small external cooler that's not looped in with the factory cooler and the only way I see 210 is if I make 3 quarter mile runs back to back to back without shutting it off. Basically three hot laps.

Driving on on the street 160 is usually as hot as it gets and that's on a hot day.
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Old Jun 3, 2018 | 01:37 AM
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Originally Posted by lsws6
Is it normal for a transmission running a 3200 stall, shift kit, and B&M 70264 cooler to be running the same temp as the cars coolant?
Are you still using the factory cooler in the radiator inline with the 70264 or did you by pass it?
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Old Jun 3, 2018 | 02:13 AM
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No I removed the stock cooler cuz it was pretty beat up basically I followed the instructions and hooked up the radiator line to the bottom and the transmission side on the top but I feel as if the transmission fluid is flowing at the same temp as the coolant.
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Old Jun 3, 2018 | 02:20 AM
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Is this how you have yours routed? Except on f bodys it would be top and bottom on the passenger side of the radiator.
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Old Jun 3, 2018 | 02:27 AM
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I have the connections right but the cooler is sideways with the connections facing the right headlight
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Old Jun 3, 2018 | 02:31 AM
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Originally Posted by lsws6
I have the connections right but the cooler is sideways with the connections facing the right headlight
But you also have lines that run into the radiator correct?
Also where is the cooler mounted?
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Old Jun 3, 2018 | 02:37 AM
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Well all I did was disconnect the stock cooler lines one from the radiator, and one from the transmission and hooked them up to the new cooler as directed on the manual, I mounted it right in front of the condenser
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Old Jun 3, 2018 | 02:43 AM
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The stock cooler is in the radiator that's what the lines are running into the radiator. You will want to bypass that cooler and put plugs in those locations. So you will have your transmission line coming out of the transmission into the 70264 then right back into the transmission.

How are you measuring temps?

Next make sure the cooler is not laying flat against the condenser. Have about 1/2in. gap between them.
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Old Jun 3, 2018 | 02:47 AM
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ah gotcha I didn't know I was supposed to bypass it, and I did make the mistake of laying it flat against the condenser its actually zip tied to it haha thanks for the heads up
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Old Jun 3, 2018 | 02:58 AM
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Originally Posted by lsws6
ah gotcha I didn't know I was supposed to bypass it, and I did make the mistake of laying it flat against the condenser its actually zip tied to it haha thanks for the heads up
Ya, fix those couple things and you should see your temps drop dramatically. Also if you're reading your temps through the obd2 port as opposed to the actual fluid it will read probably around 10 degrees warmer than actual fluid temps.

200-210 degrees is definitely on the hot side weather driving normal or pounding on the car with a higher stall
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Old Jun 3, 2018 | 03:04 AM
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The factory transmission cooler is just coils that run through the radiator sitting in your coolant. That's why you're seeing similar temps between coolant and transmission fluid
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Old Jun 3, 2018 | 03:07 AM
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makes perfect sense, I don't understand why they don't tell you to bypass it in the instructions haha
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Old Jun 3, 2018 | 03:15 AM
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Originally Posted by lsws6
makes perfect sense, I don't understand why they don't tell you to bypass it in the instructions haha
They should put a warm climate option in there. The use of the radiator "cooler" is for cold climate conditions to get the fluid temps up to operating temperature.

If you drive in the winter in 20 degree weather and bypass the stock cooler you may only see tranny fluid temps of around 60-80 degrees which is not good. But in warmer conditions the stock cooler will have no problem heating up your transmission fluid when it's 90 degrees outside and your coolant temps are 210+.
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