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Trans cooler

Started by Njc85 , Sep 30 2015 02:31 PM

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19 replies to this topic

#1 Njc85

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Name:Nick
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Posted 30 September 2015 - 02:31 PM

Hey guys I have a LH running 308 with T400 box alloy radiator and twin Au thermos.
Looking at putting a separate oil cooler for the tranny. After some ideas/experiences ppl have had.
What cooler use are running etc.
cheers

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#2 mick_in_oz

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Posted 30 September 2015 - 06:10 PM

Commodore VR? Police Pack, looks similar to the tow pack cooler but is twice as think.

It has to keep my Trimatic with TCE 8" 5000 converter happy as a street driver and have never had any trouble in over 10 years.

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#3 yel327

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Posted 30 September 2015 - 06:26 PM

Go and read what Wholesale Automatics in Bayswater use. They have some good quality coolers they use in heavy duty 4x4 and campervan applications. I used one on my SR5 - I put an ATF temperature gauge in first and used it a bit, then put the cooler on. It dropped the ATF temperature by probably 40deg. In normal driving it used to sit around 75-85deg, now it stays below 50. Even towing over 2 tonne under load it never exceeds 100, whereas before installing the cooler it'd do that on its own (no trailer) going up a hill in summer. I know most coolers will do similar stuff, but these guys know their stuff and it has proven itself to me. On their website which isn't the best, go to products and the coolers are right near the bottom of the page.

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#4 _Bomber Watson_

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Posted 30 September 2015 - 08:01 PM

Dont look at the stupid tube and fin style ones.

The ones that look like a mini radiator are the go.

My opinion is avoid ones with barbs, get one with NPT threads, and run braided hose with AN fittings, not overly expensive and pretty well guaranteed not to fail and cost you a gearbox.

Cheers.

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#5 Njc85

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Posted 30 September 2015 - 11:04 PM

Will look into those few options
Cheers for the feedback guys

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#6 IMORAL

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Posted 30 September 2015 - 11:07 PM

Make sure you use the correct thread on the cooler fittings for the turbo 400. 1/4 NPT will screw in but can crack the case if do e up too tight as they are not a tappered thread. And make sure you connect it up correctly. Allot say it dosnt matter but it can.
Just incase you wernt aware.

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#7 _SLY HR_

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Posted 01 October 2015 - 05:41 PM

Dont look at the stupid tube and fin style ones.
The ones that look like a mini radiator are the go.
My opinion is avoid ones with barbs, get one with NPT threads, and run braided hose with AN fittings, not overly expensive and pretty well guaranteed not to fail and cost you a gearbox.

Cheers.

I agree with Mr Watson.
AN fittings and hose can be bought from china/usa for a fraction of the price. I have some chinese bought nylon braid here that, to me seems of equal quality as the local aeroflow/proflow gear. I will attach a pic of my new setup (minus hose) which is to keep my manualized glide with 3500 stall 8" converter cool. With AN fittings there are so many options for angled fittings and even bulkhead fittings to keep everything as neat as possible. Cheers

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#8 _Bomber Watson_

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Posted 01 October 2015 - 08:38 PM

Heres mine:

The little switch down the bottom in the guage adaptor fitting is just an on off thermostat switch that flicks the thermo fan mounted to the back of the cooler on and off.

Cheers.

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#9 Njc85

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Posted 01 October 2015 - 11:02 PM

Cheers for the pic also bomber, where did you pick that cooler up from?

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#10 _Bomber Watson_

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Posted 02 October 2015 - 08:01 AM

Summit.

To long ago, cant remember what brand it was, possibly derale?

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#11 _SLY HR_

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Posted 02 October 2015 - 01:50 PM

forgot pic...oops

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#12 TerrA LX

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Posted 03 October 2015 - 07:41 AM

SLY HR, your cooler needs to rotate 90degrees?

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#13 _Bomber Watson_

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Posted 03 October 2015 - 05:14 PM

Agreed.

In at the bottom out at the top.

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#14 _SLY HR_

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Posted 05 October 2015 - 11:26 AM

Seriously?
I had been told it doesn't matter.
Just in mocking stage so it's no big deal to rotate it.
Thanks

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#15 yel327

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Posted 05 October 2015 - 11:48 AM

Mine is mounted the same way on the Hilux, seems to work fine.

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#16 ls2lxhatch

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Posted 05 October 2015 - 11:57 AM

If the connectors are both facing down then you can trap air in the top of the cooler which will reduce its cooling efficiency. The cooler will also drain out and refill with air when the engine is off.

If the connectors are both facing to the side with the outlet at the top or both connectors are at the top then air will be purged from the cooler and the cooler will not drain out.

Edited by ls2lxhatch, 05 October 2015 - 11:57 AM.

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#17 _SLY HR_

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Posted 05 October 2015 - 11:59 AM

I just read that by mounting with ports to the side and having outlet at the top is to bleed out any air that could otherwise be trapped when fittings are at the bottom.
I feel a little silly for not thinking of that myself.
Cheers for pointing that out fellas

If the connectors are both facing down then you can trap air in the top of the cooler which will reduce its cooling efficiency. The cooler will also drain out and refill with air when the engine is off.

If the connectors are both facing to the side with the outlet at the top or both connectors are at the top then air will be purged from the cooler and the cooler will not drain out.

^good timing.

Thanks

Edited by SLY HR, 05 October 2015 - 12:00 PM.

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#18 S pack

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Posted 05 October 2015 - 11:59 AM

Agreed.

In at the bottom out at the top.

I would have thought IN at the top and OUT at the bottom, just like your radiator.

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#19 S pack

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Posted 05 October 2015 - 12:02 PM

If the connectors are both facing to the side with the outlet at the top or both connectors are at the top then air will be purged from the cooler and the cooler will not drain out.

Aha, didn't think of that.