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TRANNY COOLER

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thirdtimevetteowner

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I am going to be buying a tranny cooler soon, but cannot decide on what size. Would it be better to go with a larger, 3/4'' thick one, or a smaller, 1 1/2" thickone? It seems to me that an inch and a half may inhibit airflow to the upper portion of the radiator, as well as to the air filter. However a larger but thinner, 3/4" thick one will cover that much more area, thus reducing the amount of flow through the radiator. It is already inhibited by the AC condenser. Any thoughts on this? I know all about stacked plate models, such as B & M's, and how they are less apt to damage, but my condenser has nary a bent fin, so I don't think that enters the picture here. And since they are an inch and a half thick, it brings me back to the original question. Any help surely appreciated.

Rich K
 
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thirdtimevetteowner

Guest
Uh, thanks for all the replies, ppl. Guess I'll have to wing it.

Rich K
 

Robertwav1

Well-known member
Joined
Jan 7, 2003
Messages
813
Location
Ocala, Florida
Corvette
1993 Blue
I am going to be buying a tranny cooler soon, but cannot decide on what size. Would it be better to go with a larger, 3/4'' thick one, or a smaller, 1 1/2" thickone? It seems to me that an inch and a half may inhibit airflow to the upper portion of the radiator, as well as to the air filter. However a larger but thinner, 3/4" thick one will cover that much more area, thus reducing the amount of flow through the radiator. It is already inhibited by the AC condenser. Any thoughts on this? I know all about stacked plate models, such as B & M's, and how they are less apt to damage, but my condenser has nary a bent fin, so I don't think that enters the picture here. And since they are an inch and a half thick, it brings me back to the original question. Any help surely appreciated.

Rich K

Hey Rich.....I like your logic here. Wish I knew more about it to be able to give you some insight. Does the 89 have a tranny cooler? Just curious.
 

Jeb

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Joined
Jan 20, 2005
Messages
456
Location
Covington, Louisiana
Corvette
1987 Convertable
Hey Rich.....I like your logic here. Wish I knew more about it to be able to give you some insight. Does the 89 have a tranny cooler? Just curious.

It does. I was wondering why an additional cooler was needed unless the owner plans on doing some towing.

I haven't had a problem with transmission overheating under normal operating conditions with my '87.

At least I don't think I have. LOL
 
Joined
Jan 15, 2004
Messages
2,240
Location
Northern Indiana
Corvette
1987 Z52 Black Convertible
It is a good idea to do if you like to drive these cars the way they were supposed to. Hot temps in a tranny will destroy it. My friend installed on on his Trans Am, it was a B&M racing cooler. I really wish I would just get it done and install one on my car, but I am not sure where to mount it though...
 
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thirdtimevetteowner

Guest
Thanks to all who replied. I am going to install a much higher torque converter in the future, so I'll definitely nead a cooler. I have a B & M stacked plate type on my 70 Nova, but the airflow to it isn't anything like a Corvette, plus it doesn't have AC. So, I am still in a quandary as to which one to buy. Anymore help on this would be much appreciated.

Rich K

P.S. It naturally has the in rad cooler, but I feel those are inadequate for what I have planned.
 

Jeb

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Joined
Jan 20, 2005
Messages
456
Location
Covington, Louisiana
Corvette
1987 Convertable
Is there any rule which says an aux. transmission cooler must be located in front of the radiator?

Would it be possible, since it would appear that you're doing some serious mods (which will increase the work of the radiator also), to locate the cooler at the rear of the car and feed it with an electric fan?

Just thinkin outside of the box a little......
 
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thirdtimevetteowner

Guest
Thanks for your input Jeb. Actually jeg's has one that mounts to a frame rail, or whereever you can find a spot to put it. It is sort of round, and longish, not like the traditional ones. I am considering that, but don't know if it would be enough to cool a tranny w/ a 2800-3000 stall converter. There surely has to be someone on here w/a high stall converter who has addressed the issue of making sure their tranny doesn't bite the dust because of heat.

I am considering dumping the AC. That condenser has to impede the flow to the rad a lot. Mine doesn't work anyway (has the Electronic Climate Control, and I haven't trouble shot it yet, nor do I want to). I just bought a DeWitt two row alum rad, so at least the engine should run cooler. Gotta figure out something soon.

Rich K
 
Joined
Jan 15, 2004
Messages
2,240
Location
Northern Indiana
Corvette
1987 Z52 Black Convertible
I know Mad-Mic has installed one on his 87, but he is still running the stock stall converter to the best of my knowledge. Couldn't you just cut the lines and use the AC condensor itself? I don't know just a thought. You could always use the one that is mounted underneath the car, and keep the one built into the radiator to.
 

ThunderVette

Active member
Joined
Jul 16, 2004
Messages
42
Location
Moscow, RU
Corvette
1990 Red L98 Autotranny
What I'm going to do is install one more steering fluid cooler to tranny cooling lines. Of course would wash out old PS fluid with transmission fluid before installation. Would install in front of existing steering fluid cooler - 1.5-2.5 inches apart of it. Would post later on how that works...
 
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thirdtimevetteowner

Guest
Tranny Cooler

Grumpyvette,
Sounds like a great idea, and should get the work done. All I will need then is the sandwich gizmo for the oil cooler. Thanks to all.

Rich K
 

grumpyvette

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Joined
Apr 17, 2001
Messages
841
Location
Loxahatchee, FL, Palm Beach co
BTW your local hydrolic hose supply house can make good high pressure (MINIMUM 200 PSI hot oil (300 degrees F rated) braided hoses with screw ends if you measure carefully.
route it inside the frame rails and away from the exhaust and drive train, up away from the potential for speed bumps and crap hitting the lines
 

grumpyvette

Well-known member
Joined
Apr 17, 2001
Messages
841
Location
Loxahatchee, FL, Palm Beach co
engine oil needs to reach and stay at about 215F-240f
trans fluid I try to keep under 160F,surely below 180F ,Ideally I try to keep coolant in the engine in the 190F-200F range but don,t get overly worried below 230F.I run a 190F t-stat
you can install AUTO temp control switchs and GAUGES (ideal) or manual switchs and GAUGES (FAR FROM IDEAL), your correct that the engine fluids take slightly longer to reach ideal temps, but then they rarely change after getting into the ideal ranges after you set up the system correctly
http://store.summitracing.com/partdetail.asp?part=SUM-890015
http://store.summitracing.com/partdetail.asp?part=PRF-30103
http://store.summitracing.com/partdetail.asp?part=PRF-30110
these allow the fluids to circulate but the fan won,t run untill the temp reachs a set limit

keep in mind the hot engine oil running over the blocks surfaces and trans fluid running thru the lower radiator add a good deal of heat to the coolant in the radiator and removing heat elseware from both reduces the radiators heat load, generally stabilizing the engine temp swings
 

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