Transmission running hot...which tranny cooler to get?
Thread Starter
Joined: Jul 2005
Posts: 1,428
Likes: 2
From: Guilford, Connecticut
Car: 1988 IROC-Z camaro
Engine: 355 TPI
Transmission: tko 500
Axle/Gears: Dana 44 3.31 posi pbr brakes
Transmission running hot...which tranny cooler to get?
So this past weekend i finally got around to installing an Autometer tranny temp gauge. Well on the way home from work today in stop and go it was really climbing up there and not really going down after. It topped out at 215degrees which in my book is way to hot for a tranny to get. I think its time i invested in a tranny cooler. What brand has everyone had good luck with installing? Is there one that is preferred for ease of install as well? What price could i get a decent one for?
Re: Transmission running hot...which tranny cooler to get?
You wasted your money on temp gage for the tranny and now you want a tanny cooler. Go for it, that tranny is way too hot it should -32 deg.
Thread Starter
Joined: Jul 2005
Posts: 1,428
Likes: 2
From: Guilford, Connecticut
Car: 1988 IROC-Z camaro
Engine: 355 TPI
Transmission: tko 500
Axle/Gears: Dana 44 3.31 posi pbr brakes
Re: Transmission running hot...which tranny cooler to get?
In my book i dont see it as a waste now that i can actually see whats going on with my tranny. But thanks i wasnt asking for input on if i wasted money or not just, just what cooler to get....so u answered nothing.
Last edited by subroc; Sep 5, 2008 at 07:23 AM.
Joined: Jun 2005
Posts: 1,245
Likes: 8
From: Fairfield, CA
Car: 91camaro rs,2014 silverado 5.3L
Engine: 5.7Lcarb,5.3L
Transmission: 700-r4, 6L80
Axle/Gears: strange 3.73's
Re: Transmission running hot...which tranny cooler to get?
i am using a cooler that i got from advanced auto parts. lowered my temps by 15 degrees. never goes above 175 even after a long night at the track.
Supreme Member
Joined: Jan 2001
Posts: 1,047
Likes: 2
From: Lincoln, Nebraska
Car: 1988 Firebird, 2000 GTP
Engine: 327
Transmission: 700R4
Axle/Gears: 9" posi, 4.11
Re: Transmission running hot...which tranny cooler to get?
I am running a Hayden Rapid-Cool. It's a bit more expensive than the other coolers they offer. It's more like a radiator with an actual core instead of the single tube and fins.
It's the second one down on the list. I don't have a temp guage but after the tranny rebuild and shift kit, I figured it wouldn't hurt.
http://www.haydenauto.com/products/t...il-coolers.htm
It's the second one down on the list. I don't have a temp guage but after the tranny rebuild and shift kit, I figured it wouldn't hurt.
http://www.haydenauto.com/products/t...il-coolers.htm
Joined: Jun 2005
Posts: 1,245
Likes: 8
From: Fairfield, CA
Car: 91camaro rs,2014 silverado 5.3L
Engine: 5.7Lcarb,5.3L
Transmission: 700-r4, 6L80
Axle/Gears: strange 3.73's
Re: Transmission running hot...which tranny cooler to get?
just noticed--- same one as prev. post
Thread Starter
Joined: Jul 2005
Posts: 1,428
Likes: 2
From: Guilford, Connecticut
Car: 1988 IROC-Z camaro
Engine: 355 TPI
Transmission: tko 500
Axle/Gears: Dana 44 3.31 posi pbr brakes
Re: Transmission running hot...which tranny cooler to get?
Mine only started to get hot in stop and go. Engine would creep up there and then come down when i would move again but the tranny would creep up there and stay up there. If im just cruising along it stays at around 150-175.
Trending Topics
Supreme Member
Joined: Jan 2001
Posts: 1,047
Likes: 2
From: Lincoln, Nebraska
Car: 1988 Firebird, 2000 GTP
Engine: 327
Transmission: 700R4
Axle/Gears: 9" posi, 4.11
Re: Transmission running hot...which tranny cooler to get?
Well, the transmission usees the radiator to help cool it. If your engine is running hot, your coolant in the radiator will be hot, and therefor heat the transmission as well.
Use the radiator as a pre-cooler, then through the trans cooler, and you will end up with the coolest possible fluid returning to the transmission. Unless you want to bypass the radiator all together, but you shouldn't have to. The radiator will then help heat the fluid in the winter if a daily driver.
Use the radiator as a pre-cooler, then through the trans cooler, and you will end up with the coolest possible fluid returning to the transmission. Unless you want to bypass the radiator all together, but you shouldn't have to. The radiator will then help heat the fluid in the winter if a daily driver.
Thread Starter
Joined: Jul 2005
Posts: 1,428
Likes: 2
From: Guilford, Connecticut
Car: 1988 IROC-Z camaro
Engine: 355 TPI
Transmission: tko 500
Axle/Gears: Dana 44 3.31 posi pbr brakes
Re: Transmission running hot...which tranny cooler to get?
My engine isnt necessarily running hot, but the fan kicks on at 225 and i have the AC fan wired to a switch so generally i dont let it get that hot. If im cruising along the engine is right where it should be. It is not a daily driver but i think i still will do as you say and run it so that its going through the radiator and the tranny cooler.
Member
Joined: Apr 2005
Posts: 225
Likes: 0
From: kansas
Car: 89 S10 Blazer
Engine: 355 tbi
Transmission: Built 700R4 w/ 2500 stall
Axle/Gears: 3:73 posi
Re: Transmission running hot...which tranny cooler to get?
You may want to try with the rad bypassed. Ive seen trannies run cooler with them bypassed, since like somone else said, the rad is just heating it up when your coolant is hot.
trans cooler with a 8-10 inch fan on it.
Thread Starter
Joined: Jul 2005
Posts: 1,428
Likes: 2
From: Guilford, Connecticut
Car: 1988 IROC-Z camaro
Engine: 355 TPI
Transmission: tko 500
Axle/Gears: Dana 44 3.31 posi pbr brakes
Re: Transmission running hot...which tranny cooler to get?
Yeah that was stupid wasnt it. Hell why use ANY gauges? not like they are usefull or anything
You may want to try with the rad bypassed. Ive seen trannies run cooler with them bypassed, since like somone else said, the rad is just heating it up when your coolant is hot.
trans cooler with a 8-10 inch fan on it.
You may want to try with the rad bypassed. Ive seen trannies run cooler with them bypassed, since like somone else said, the rad is just heating it up when your coolant is hot.
trans cooler with a 8-10 inch fan on it.

Member
Joined: Apr 2005
Posts: 225
Likes: 0
From: kansas
Car: 89 S10 Blazer
Engine: 355 tbi
Transmission: Built 700R4 w/ 2500 stall
Axle/Gears: 3:73 posi
Re: Transmission running hot...which tranny cooler to get?
You can TRY that, but im concered it wont have enough airflow after it has to suck the air past a radiator and ac condensor.
Not real familiar with the front end area of these cars, even tho i did just spend about 2 solid days of work at work r&r's heads rad ect lol.
But if there is room in the nose area or behind core support toward the bottom, see if there is a place to mount it so you can put a small fan on it.
That is if the way you want to do it wont cool it enough.
ediit- well scratch that idea on mounting it elsewhere, i forget that there was decent room in front of the condensor if i remember right so you can just slap the fan on front as a pusher ......
Not real familiar with the front end area of these cars, even tho i did just spend about 2 solid days of work at work r&r's heads rad ect lol.
But if there is room in the nose area or behind core support toward the bottom, see if there is a place to mount it so you can put a small fan on it.
That is if the way you want to do it wont cool it enough.
ediit- well scratch that idea on mounting it elsewhere, i forget that there was decent room in front of the condensor if i remember right so you can just slap the fan on front as a pusher ......
Thread Starter
Joined: Jul 2005
Posts: 1,428
Likes: 2
From: Guilford, Connecticut
Car: 1988 IROC-Z camaro
Engine: 355 TPI
Transmission: tko 500
Axle/Gears: Dana 44 3.31 posi pbr brakes
Re: Transmission running hot...which tranny cooler to get?
No AC condenser anymore. PO took out all AC related items and put an AC delete pulley in. There is tones of room now for me to mount a good sized tranny cooler.
Re: Transmission running hot...which tranny cooler to get?
This is what I feel is the best type of trans cooler, price is right @ 50.00
B&M's SuperCooler low pressure drop coolers reduce the risk of lube system failure. A controlled amount of ATF is allowed to bypass the stacked plate core, passing through a self-regulating orifice which monitors resistance to flow. Controlled by viscosity, the thicker ATF is returned directly to lube through two open bypass openings in the stacked plate core. As operating temperatures increase, more of the ATF flow is directed through the core. Resulting in a highly efficient cooling technology that combines improved protection against lube system failure with the required levels of optimal heat transfer.
http://www.byunspeed.com/product_inf...ce1e0589327772
B&M's SuperCooler low pressure drop coolers reduce the risk of lube system failure. A controlled amount of ATF is allowed to bypass the stacked plate core, passing through a self-regulating orifice which monitors resistance to flow. Controlled by viscosity, the thicker ATF is returned directly to lube through two open bypass openings in the stacked plate core. As operating temperatures increase, more of the ATF flow is directed through the core. Resulting in a highly efficient cooling technology that combines improved protection against lube system failure with the required levels of optimal heat transfer.
http://www.byunspeed.com/product_inf...ce1e0589327772
Thread Starter
Joined: Jul 2005
Posts: 1,428
Likes: 2
From: Guilford, Connecticut
Car: 1988 IROC-Z camaro
Engine: 355 TPI
Transmission: tko 500
Axle/Gears: Dana 44 3.31 posi pbr brakes
Re: Transmission running hot...which tranny cooler to get?
This is what I feel is the best type of trans cooler, price is right @ 50.00
B&M's SuperCooler low pressure drop coolers reduce the risk of lube system failure. A controlled amount of ATF is allowed to bypass the stacked plate core, passing through a self-regulating orifice which monitors resistance to flow. Controlled by viscosity, the thicker ATF is returned directly to lube through two open bypass openings in the stacked plate core. As operating temperatures increase, more of the ATF flow is directed through the core. Resulting in a highly efficient cooling technology that combines improved protection against lube system failure with the required levels of optimal heat transfer.
http://www.byunspeed.com/product_inf...ce1e0589327772
B&M's SuperCooler low pressure drop coolers reduce the risk of lube system failure. A controlled amount of ATF is allowed to bypass the stacked plate core, passing through a self-regulating orifice which monitors resistance to flow. Controlled by viscosity, the thicker ATF is returned directly to lube through two open bypass openings in the stacked plate core. As operating temperatures increase, more of the ATF flow is directed through the core. Resulting in a highly efficient cooling technology that combines improved protection against lube system failure with the required levels of optimal heat transfer.
http://www.byunspeed.com/product_inf...ce1e0589327772
Member
iTrader: (2)
Joined: Mar 2002
Posts: 346
Likes: 1
From: Lowell, In
Car: 1991 Chevy Camaro RS
Engine: 350 TPI
Transmission: 700R4,
Axle/Gears: 3.73 w/SLP Zexel Torsen Limited Sli
Re: Transmission running hot...which tranny cooler to get?
Here's the one I use I have used it on about 5 or 6 different cars now and it does a great job.
http://www.bmracing.com/s.nl/c.72308...&category=6172
http://www.bmracing.com/s.nl/c.72308...&category=6172
Joined: Jan 2004
Posts: 1,761
Likes: 4
From: The "D"
Car: A Portly 85 Z28
Engine: 4.530 X 4.250 BBC
Transmission: under rated for this application
Axle/Gears: also under rated
Re: Transmission running hot...which tranny cooler to get?
X2 on the B&M super cooler, the stack plate is the way to go, the aluminum tube and fin design is not nearly as good.
Thread
Thread Starter
Forum
Replies
Last Post
BlackphantomZ28
Engine/Drivetrain/Suspension Parts for Sale
4
Apr 24, 2016 08:14 AM







