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Old 06-14-2012, 01:10 AM
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Primary Trans cooler with no fan

hello guys need your opinions. I decided to bypass the radaitor trans cooler and just do a stand alone transmission cooler to get the job done. My question is do i need a fan on the transmission cooler or can i just run the cooler in front of the radiator and let it be ( I have no ac condensor behind radiator)?

Also these are the coolers im looking at purchaseing

http://www.jegs.com/i/JEGS+Performan...60383/10002/-1
or

http://www.jegs.com/i/B%26amp%3BM/130/70264/10002/-1

which one of these would you guys prefer. its for a 700r4 that im currently about to get rebuild soon with a 2500 stall

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Old 06-14-2012, 04:38 AM
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In most cases for a street vehicle there is no need for an additional fan on the aux cooler. It is in front of the radiator and get the cooler air before it hits the radiator.

Both the coolers are good, but bigger is better if it fits. However, a 2500 stall converter and 700r4 have enough cooling with either one for normal driving.

Also search the web for Long Mfd. Low Pressure Drop (LPD) coolers, which are the same design as those you found at Jegs, but with a low temp bypass that is supposed to allow faster warm-up. Long coolers come in various sizes, and some of the ones you found from Jegs may even be a rebranded LPD cooler.

Bruce
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Old 06-14-2012, 08:15 AM
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thanks for the info. what i was worried about how would it work if i were to ever get stuck in bumber to bumber traffic without some kind of fan on it.
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Old 06-14-2012, 10:24 AM
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The transmission wouldn't be "moving" i.e your wheels aren't spinning so your transmission isn't doing any work. Therefore it wouldn't require as much airflow. The cooler would release the heat through the fins on it.
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Old 06-14-2012, 10:32 AM
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I have a trans cooler in front of my rad. and have not encountered any problems without a fan.
The "cooler" in the rad is in fact a warmer upper to get the trans to working temp quicker.
Adding an auxiliary cooler inline to this setup is to regulate the trans temp when towing.
My TH700R4 takes a long time to warm up even though I have a
Derale Performance Fluid Control Thermostat installed.
I also use a remote filter for the trans.

A nice aluminum pan will help dissipate the heat also.
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Old 06-14-2012, 11:09 AM
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aww okay that does make sense. and thanks for the pics. also how can i make this work with the steel lines.
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Old 06-14-2012, 11:19 AM
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Quote:
Originally Posted by chuck whitaker
aww okay that does make sense. and thanks for the pics. also how can i make this work with the steel lines.
If you´re good with a tube bender..........
I used braided right from the trans to cooler, way easier than bending tube.
More pics of my setup here.
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Old 06-14-2012, 12:49 PM
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the braided line sounds like a good plan. im gonna call jegs and get there help on what size fittings i need. thanks guys you help me out alot.
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Old 06-14-2012, 11:35 PM
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I used -6 which, large enough and managable.
You´ll need connectors at the trans as well, and make sure you
measure well for length of hose, it might not seem far from trans to cooler but
getting around obstacles takes up a lot of hose.
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