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Fbody 4l80 ( what trans cooler should I use?)

Old 07-04-2018, 12:24 AM
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Default Fbody 4l80 ( what trans cooler should I use?)

I have a 2001 Ws6, Im doing a 4l80 swap from a M6, so my question is what trans cooler should I get? Since I ordered a high stall tc and Im gona put some power down
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Old 07-04-2018, 08:15 AM
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I'm going to use the large trans cooler that came from a 1999 Silverado / Sierra truck. This cooler has nearly one square foot of area (two, if you count both sides) which should be plenty. I have been using the power steering pump cooler from this kind of truck but it gets hot with my 4L60E. I'm now in the process of purging anything dirty out of the large cooler and should be able to mount it in front of the AC condenser very soon. I cut out my tubing bends last night getting things ready to pass through the radiator core support . . . I just need to find that package of rubber grommets that I bought. This is also scrap tubing from a junk yard with mandrel bent curves . . . very inexpensive and no mangled bent curves by me.

You should be able to find something suitable in a junk yard for short money. Run some hot water through the cooler and tubing in both directions to clear it of anything bad and then blow out all water with compressed air. Then run a little trans fluid through and blow it out. You should be good to go on cleanliness after that.

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Old 07-04-2018, 08:50 AM
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Run a plate style cooler as opposed to a tube and fin.

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Old 07-05-2018, 09:08 AM
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I'd go with the above except use a Tru-Cool h7b cooler which is made by the same company that makes b&m. It's bigger and costs less.

Last edited by mjs1012; 07-12-2018 at 09:36 AM.
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Old 07-05-2018, 12:25 PM
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Thanks for the reply’s so far, something thats worth mentioning and dont know if it makes a difference, but Im going with a twin turbo kit, need to stand up the radiator and Im not sure if it will fit between the rad and int. or if it affects the air flow to the radiator.
So in this case whats the option? Mount it on the rear or in the passenger area somewhere?
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Old 07-05-2018, 12:29 PM
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Originally Posted by mjs1012 View Post
I'd go with the above except use a Hayden h7b cooler which is made by the same company that makes b&m. It's bigger and costs less.
Yep, the equivalent coolers are less then B+M bc you arent paying for the name. I run dual h7bs with fans.

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Old 07-08-2018, 09:50 PM
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Us truck guys run the trucool 40k. Its big as hell but works awesome. Ive ran one on a few diff 80e swap setups. No fan on them either. Just directly in the grill in the airflow in front of the radiator. No over heat issues yet!
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Old 07-10-2018, 11:14 AM
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Originally Posted by brandon6.0 View Post
Us truck guys run the trucool 40k. Its big as hell but works awesome. Ive ran one on a few diff 80e swap setups. No fan on them either. Just directly in the grill in the airflow in front of the radiator. No over heat issues yet!

Have you seen or know if anyone has used them on firebird 2001?
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Old 07-10-2018, 11:33 AM
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Im reading a write up https://ls1tech.com/forums/automatic...0e-f-body.html and what Im confused about is , since my car is manual 6s , I see (that It is reccomended by manufacturers and is most efficient to run your tranny cooler in series with the factory cooler) so am I good just running only the am transcooler?
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Old 07-10-2018, 01:05 PM
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Yes most people bypass the factory cooler, the factory cooler is know to fail and leak coolant into your trans and destroy the clutches.
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Old 07-10-2018, 02:40 PM
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Originally Posted by MY_2K_Z View Post
Yes most people bypass the factory cooler, the factory cooler is know to fail and leak coolant into your trans and destroy the clutches.
Yes, these types of failures happen...but the factory cooler is not known for it. It's not like its a super common failure.

If you live anywhere with cool climates (read:anywhere a glass of water will freeze if you leave it out on your porch at night) and you plan to drive your car anytime other than summer...then you should use the factory cooler. This will help the trans keep its temp in cool climates. And if you have a properly sized aftermarket cooler AFTER the factory cooler...it should have no problems keeping fluid at 160.
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Old 07-10-2018, 06:42 PM
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Originally Posted by mjs1012 View Post
I'd go with the above except use a Hayden h7b cooler which is made by the same company that makes b&m. It's bigger and costs less.
Does it fit a gen4 firebird?
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Old 07-11-2018, 12:37 AM
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any cooler can be made to fit. Just get one and install it in the grill in front of the radiator. Bypass the original tranny cooler in the radiator completely!
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Old 07-12-2018, 01:33 AM
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Originally Posted by mjs1012 View Post
I'd go with the above except use a Hayden h7b cooler which is made by the same company that makes b&m. It's bigger and costs less.
Where can I buy this cooler?
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Old 07-12-2018, 09:36 AM
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Originally Posted by Ws6ls View Post
Does it fit a gen4 firebird?
Where are you planning on mounting it? I have mine on the radiator, but I have the ac out so I have a ton of room. You can get it on amazon or just google "Tru-Cool H7B transmission cooler".
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Old 07-12-2018, 12:07 PM
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Originally Posted by mjs1012 View Post
Where are you planning on mounting it? I have mine on the radiator, but I have the ac out so I have a ton of room. You can get it on amazon or just google "Tru-Cool H7B transmission cooler".
I still dont have the tt kit, Ill install it infront of radiator, keep ac until I have everything to install the tt. Later Im gona mount it in the back with fans . Do you think it will fit with the ac condenser in place?
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