tranny make motor hard to cool? - Team Camaro Tech
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post #1 of 12 (permalink) Old Jun 9th, 01, 05:36 PM Thread Starter
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Question

if i were to get a tranny cooler and not run the lines through the radiator would the engine be easier to keep cool?
TH350
2000stall B&M
3.73 gears
thanks in advance

Nate
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post #2 of 12 (permalink) Old Jun 9th, 01, 06:57 PM
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i dont think it would show any real difference in coolant temp, but it would defintly make your tranny hotter. chris
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post #3 of 12 (permalink) Old Jun 10th, 01, 03:30 PM
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Eric
 
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Nate,

The engine probably would run a tad cooler if you were already on the verge of overheating. I noticed the opposite with my car - when I put a 3000 RPM converter in my tranny (generates a lot more heat) I noticed the engine runs about 10 degrees hotter, especially when crusing below my stall speed, like 2000 - 3000 RPM at 40 - 50 mph. This may also be caused by the extra rpms the engine is turning though - I can't really be sure. I am using an external cooler in series with the radiator.

I think you can run the tranny only on an external cooler - you just need a big one.

Eric

[This message has been edited by Eric68 (edited 06-10-2001).]
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post #4 of 12 (permalink) Old Jun 10th, 01, 04:21 PM Thread Starter
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Question

eric68
i noticed in the performance forum you told a guy to run the cooler in the series radiator-cooler then tranny
my question is do you think that if i were to run the series cooler-radiator-tranny would help cool the fluid before entering the radiator thus making the engine easier to cool?
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post #5 of 12 (permalink) Old Jun 10th, 01, 05:16 PM
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eggersn, that's how I run mine- trans cooler, then radiator. I've got a small block and a TH350 with a TCI 3500 converter and it runs about 180 - 190.
I'm interested to find out if I'm doing it right also.

------------------
68 Camaro 355/TH400/3.73- long term project
69 Nova 355/TH350/4.88- bottle fed Pete's Nova Page
69 Firebird 400 ragtop- all original
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post #6 of 12 (permalink) Old Jun 11th, 01, 04:32 AM
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Trans worst enemy is heat so if you are running the cooler first then the radiator you are heating the fluid before sending it back the the tranny and that is not good.

------------------
68 RS, Ash Gold,pwr brakes,pwr windows,Hounds tooth,355/T350,MSD 6AL,3200 stall Dynamic converter,3.31:1 posi,Autometer guage pod
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post #7 of 12 (permalink) Old Jun 11th, 01, 09:39 AM
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That makes sense- I guess I've got some re-plumbing to do. Thanks CA420!

------------------
68 Camaro 355/TH400/3.73- long term project
69 Nova 355/TH350/4.88- bottle fed Pete's Nova Page
69 Firebird 400 ragtop- all original
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post #8 of 12 (permalink) Old Jun 11th, 01, 05:57 PM Thread Starter
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thanks for the info!!!!!
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post #9 of 12 (permalink) Old Jun 12th, 01, 04:00 AM
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Yep - you'll heat it back up running it through the radiator second.
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post #10 of 12 (permalink) Old Jun 12th, 01, 04:41 AM
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It depends on the tranny fluid temp. The radiator temp may or may not add heat. You need to understand the tranny cooler capability and heat going into the cooler and then out.

------------------
Rick Dorion
69 RS Conv,355,M20,4:10
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post #11 of 12 (permalink) Old Jun 12th, 01, 10:45 AM
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What should the trans temp be to be safe? Or I should ask, what shouldn't it exceed? I've got a pretty typical setup- TH350 with a Trans-Go kit thats been tweaked and a 10-1/2" 3500 TCI converter.
Car is about 3000 lbs., healthy small block and 4.88s.
I just got an Autometer trans temp gauge and was going to plumb it into the return line. Is that correct?

------------------
68 Camaro 355/TH400/3.73- long term project
69 Nova 355/TH350/4.88- bottle fed Pete's Nova Page
69 Firebird 400 ragtop- all original
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post #12 of 12 (permalink) Old Jun 13th, 01, 06:13 AM
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Trans temp guage should be plumbed to the pan since that is where the tranny pulls fluid from.

------------------
68 RS, Ash Gold,pwr brakes,pwr windows,Hounds tooth,355/T350,MSD 6AL,3200 stall Dynamic converter,3.31:1 posi,Autometer guage pod
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