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Old 12-13-2012, 12:15 PM   #1
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Difference between transmission and engine oil cooler

I'm looking at remote filter and cooler for my new motor.
Anyone know what if there is a difference between a tranny hydraulic cooler vs engine cooler other than price markup on engine coolers?

Anyone have experience with Inline frame mounted coolers vs front radiator mount.
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Old 12-13-2012, 02:40 PM   #2
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Oil coolers have bigger passages then trans/power steering coolers. This is because oil is thicker then trans fluid. Any cooler is better then no cooler, and the more air you can get to flow over or around them the better. As far as front or frame its up to you to decide. If you wheel alot it might put it in harms way mounted on the frame. If you happen to race it could be in danger mounted to the front. Alot of people mount the trans cooler above the rear axle with a small fan mounted to it. This does acouple things, the added cooler and lines ups your fluid capacity and two keeps it way out of harms way.
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Old 12-13-2012, 03:33 PM   #3
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Does it matter if I get a cooler with barbs or threaded fittings? Hose clamps on barbed line, 40-60 psi will it come off?
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Old 12-13-2012, 05:55 PM   #4
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how do you plan to get to the oil and return the cooled oil? it depends on what use to get to the engines oil to cool it. i used a filter relocation kit which used 1/2" NPT threads. this means i got hose and a cooler for 1/2" NPT. if you used fittings that were barbed, i would use that. i perfer threaded because as a plumber we rarely use barbed fitting for constant pressure.
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Old 12-13-2012, 06:00 PM   #5
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Old 12-13-2012, 06:07 PM   #6
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Summit oil filter relocation kit is what I was going to use.
I can can get threaded ends on cooler and get Pirtek to make me some hoses that will never Leak or crimp my own with press as an option.
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Old 12-13-2012, 07:36 PM   #7
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ATF cooler loop runs around 30psi; engine oil pressure at the filter is 10-80psi. Don't risk your engine with more than double the design pressure going into an ATF cooler. Ford stopped offering engine oil coolers because they did more harm than good, so I suggest you just abandon this idea.
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Old 12-14-2012, 12:32 PM   #8
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For my performance engine, my engine oil cooler is a larger capacity 9 quart dual sump oil pan. Focus your attention on a quality trans cooler instead.


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Old 12-14-2012, 05:19 PM   #9
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So I'm a bit confused here as to a coolers pros/cons.
My 7.3 has an engine cooler and a cooler for manual trans, wife's 2009 rav4 with tow pckg has em too.
I would assume a good quality unit can handle 60psi.
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Old 12-14-2012, 05:23 PM   #10
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I dont see a problem with running a tube & fin cooler, but i would not run a stacked plate style. Definitely get something with atleast 3/8 passages, so you dont restrict flow. I dont think id use an AL one either.

That said, i dont really see a need for it. I mean, my 460 runs just fine with the factory oil cooler removed
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Old 12-14-2012, 06:39 PM   #11
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i htink most factory oil coolers just screw on between engine and block and use the engines coolant to cool it. really crappy design i think. its cooling the oil with somethnig thats alwasy gonna be decently hot so the oil will only cool down soo much. also the oil filter adapter is soo small theres no way it could cool the oil effectivly for as much oil flows through. for as little as it would cool it woulddnt be worth the time.

as for how your doing it i htink you will see good results. all it will do is help as long as its installed correcdtly and doesnt leak or anything. before i installed mine, my oil pressure was GONE. was planning to rebuild my engine very soon. now my oil pressure is much improved. i htink the cooler oil will cool the bearings and make the clearences tighter making beter pressure
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Old 12-14-2012, 07:59 PM   #12
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Well in past with explorer and Taurus we had the tran cooler lines going inside radiator. Was not the best. When explorer trans was rebuilt shop added an external tube fin cooler and external inline filter.
My 7.3 has external coolers

So a std copper / alum fin cooler with large passage way would
Be ok? Cooler will be attached on return side of filter.
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Old 12-15-2012, 12:19 AM   #13
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Yes hose barbs and hose properly clamped will hold 80psi just fine. Buy really good hose as hot oil will deteriorate cheap crap.
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Old 12-16-2012, 10:15 PM   #14
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Ok will do. Any suggestions on cooler manufacture.
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