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Trans Cooler Brainstorm

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Old Sep 10, 2019 | 06:42 PM
  #1  
Kyler_89RS's Avatar
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From: St. Louis, MO
Car: 1989 Chevy Camaro RS
Engine: 305 TBI
Transmission: 700R4
Axle/Gears: 2.73 Posi
Trans Cooler Brainstorm

I'm worried about longevity of the car with how the previous owners treated the poor thing. The trans fluid needs to be changed, so I thought why not cut the trans some slack and give her a nice cooler.

I know what parts I need, but idk which fittings I need (size of stock steel lines). I also don't know how to mount it. It will be in front of the radiator and it will still pass through.

Any tips for installation are part selection will be appreciated!

If anyone has pictures of mounting brackets or hose routing, that will also be appreciated! I'm not afraid of a little fabrication.
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Old Sep 10, 2019 | 07:10 PM
  #2  
84 z28's Avatar
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From: Rochester NY
Car: 1984 z28
Engine: 355
Transmission: 700r4
Axle/Gears: Moser 9" 4.11
Re: Trans Cooler Brainstorm

I use Russell braided SS line and have my cooler in front of the radiator

Last edited by 84 z28; Sep 10, 2019 at 07:13 PM.
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Old Sep 10, 2019 | 07:23 PM
  #3  
Kyler_89RS's Avatar
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From: St. Louis, MO
Car: 1989 Chevy Camaro RS
Engine: 305 TBI
Transmission: 700R4
Axle/Gears: 2.73 Posi
Re: Trans Cooler Brainstorm

Originally Posted by 84 z28
I use Russell braided SS line and have my cooler in front of the radiator
Is the stainless steel hard to work with or does it flex pretty easy? I've been going back and forth between braided SS and regular rubber hose...
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Old Sep 10, 2019 | 07:28 PM
  #4  
84 z28's Avatar
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From: Rochester NY
Car: 1984 z28
Engine: 355
Transmission: 700r4
Axle/Gears: Moser 9" 4.11
Re: Trans Cooler Brainstorm

It's synthetic rubber hose wrapped in braided SS, it's flexible and good to 1000psi


https://www.summitracing.com/parts/rus-632060/

Originally Posted by Kyler_89RS
Is the stainless steel hard to work with or does it flex pretty easy? I've been going back and forth between braided SS and regular rubber hose...
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Old Sep 10, 2019 | 07:31 PM
  #5  
Kyler_89RS's Avatar
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From: St. Louis, MO
Car: 1989 Chevy Camaro RS
Engine: 305 TBI
Transmission: 700R4
Axle/Gears: 2.73 Posi
Re: Trans Cooler Brainstorm

Originally Posted by 84 z28
It's synthetic rubber hose wrapped in braided SS, it's flexible and good to 1000psi


https://www.summitracing.com/parts/rus-632060/
Sweet. What fittings do I need to make this work? I have the stock steel tranny lines
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Old Sep 10, 2019 | 07:37 PM
  #6  
8t2 z-chev's Avatar
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From: belle fourche,s.d.
Car: '82 z28
Engine: L83 5.7
Transmission: 700r4-1985
Axle/Gears: 3.42 posi
Re: Trans Cooler Brainstorm

braided stainless is a little tricky to cut without the braid fraying out, but well worth the effort vs regular hose-I used -6 hose,and first mounted the cooler under the battery area with a fan mounted-later,after battery relocation,remounted the cooler underhood in the battery area.I used a(very nice stacked plate style) cooler from a ~1994 Ford Explorer,drilling out the original fittings and tapping for 1/4 pipe to use AN fittings.
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Old Sep 10, 2019 | 07:39 PM
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Kyler_89RS's Avatar
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From: St. Louis, MO
Car: 1989 Chevy Camaro RS
Engine: 305 TBI
Transmission: 700R4
Axle/Gears: 2.73 Posi
Re: Trans Cooler Brainstorm

Originally Posted by 8t2 z-chev
braided stainless is a little tricky to cut without the braid fraying out, but well worth the effort vs regular hose-I used -6 hose,and first mounted the cooler under the battery area with a fan mounted-later,after battery relocation,remounted the cooler underhood in the battery area.I used a(very nice stacked plate style) cooler from a ~1994 Ford Explorer,drilling out the original fittings and tapping for 1/4 pipe to use AN fittings.
I'll probs mount it in front of the radiator and fab some sort of bracket to get it to work. What size are the stock tranny line?
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Old Sep 11, 2019 | 08:13 AM
  #8  
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From: MA
Car: 1989 IrocZ
Engine: 421 Dart Stroker
Transmission: 4L60E Cahall Performance Built
Axle/Gears: Midwest Chassis Fab 9/ 3.55 gears
Re: Trans Cooler Brainstorm

You can use Earl's ultrapro. Way more flexable than stainless braided and 100x easier to put together. Earl's makes tube nut adapters that you can put right on the factory cooler lines. Plumb right out of the factory cooler into a secondary cooler then back to trans. The tru cool by long is a good cooler for cheap money. Simaler to the B&M unit but not paying for the name. If you want to go the cheap route and just cut the factory line, slip on rubber hose and use hose clamps you can do that. The factory trans cooler lines are very low pressure. 20-30 psi. Either way works. I had a small long cooler inline with the factory unit and on a gauge I was seeing 120 max degrees. Hope this helps.
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Old Sep 11, 2019 | 09:54 AM
  #9  
Kyler_89RS's Avatar
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From: St. Louis, MO
Car: 1989 Chevy Camaro RS
Engine: 305 TBI
Transmission: 700R4
Axle/Gears: 2.73 Posi
Re: Trans Cooler Brainstorm

Originally Posted by IROCZ1989
You can use Earl's ultrapro. Way more flexable than stainless braided and 100x easier to put together. Earl's makes tube nut adapters that you can put right on the factory cooler lines. Plumb right out of the factory cooler into a secondary cooler then back to trans. The tru cool by long is a good cooler for cheap money. Simaler to the B&M unit but not paying for the name. If you want to go the cheap route and just cut the factory line, slip on rubber hose and use hose clamps you can do that. The factory trans cooler lines are very low pressure. 20-30 psi. Either way works. I had a small long cooler inline with the factory unit and on a gauge I was seeing 120 max degrees. Hope this helps.
Thanks for the reply.

What size tube nut adapters do I need? I don't know the stock size of the tranny lines.

I'm gonna cut the return tranny line 3-4 inches before the radiator and adapt the hoses onto the cut tranny line. I have a diagram in my head, but it's hard to explain haha
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Old Sep 14, 2019 | 08:41 PM
  #10  
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From: Tracy, CA
Car: '87 IROC
Engine: LB9
Transmission: TH700R4
Re: Trans Cooler Brainstorm

Originally Posted by Kyler_89RS
Thanks for the reply.

What size tube nut adapters do I need? I don't know the stock size of the tranny lines.

I'm gonna cut the return tranny line 3-4 inches before the radiator and adapt the hoses onto the cut tranny line. I have a diagram in my head, but it's hard to explain haha
When I installed a cooler onto my GMC van, I used Earl's hard line adapters (male), Jeg's 90-degree hose barbs (female), FI fuel hose clamps and the rubber hose that came with the Tru-Cool LPD cooler.



IIRC, the steel cooler lines are 3/8" diameter. F-Body lines might be smaller - https://www.thirdgen.org/forums/tran...oler-line.html. However, it's best that you confirm this yourself. It's not that hard to check.

Bill of Material (5/16" hard lines)
https://www.jegs.com/i/Earls/361/165056/10002/-1
https://www.jegs.com/i/JEGS/555/100849/10002/-1

You can forego the fittings and use hose barb adapters that install directly into the radiator.

Mounting the cooler was straight forward. I used 1/4-20 rivet nuts on the radiator support, the kit provided brackets and 1/4-20 hardware.



I didn't want to mount the cooler directly onto the A/C condenser with those foam zip mounts; the cooler stands off >1.5" or so.

Last edited by paulo57509; Sep 15, 2019 at 02:54 AM. Reason: Spelling
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Old Sep 21, 2019 | 12:01 AM
  #11  
84 1LE's Avatar
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From: Oyth
Car: 89RS vert
Engine: Erod
Transmission: 4L65e
Axle/Gears: BW, 3.27
Re: Trans Cooler Brainstorm

I mounted mine where a splash shield used to be.I used the former shield as a template of sorts to make a bracket using the shields mounting points for the cooler.Incorporated a yamaha R6 fan to draw heat out at around 180*, works quite well.My front cooling fan prevents me from using that location.

The brass switch above triggers a relay, which in turns powers the fan.
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Old Sep 21, 2019 | 08:40 AM
  #12  
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From: Bismarck, ND
Car: 1982 Trans Am
Engine: 5.7 ls1
Transmission: 4l60e
Axle/Gears: 3.23
Re: Trans Cooler Brainstorm

For you guys that want to run stainless braided high pressure hose that attach to the hard lines with the proper adapters I will list all part numbers from summit racing. Btw this make a very clean install and guarantees you more driving with less leaks. These 2 fittings will convert your hard line to AN fittings- (1)RUS-640331, (1)RUS-640600, and these will finish off the install, (3)RUS-610020 straight fittings, (1)RUS-632060 proflex -6an hose, (1)RUS-610160 swivel 90 degree. Took a while to compile all these part numbers but I used them on my car and worked great for around a hundred bucks plus cooler of course.
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