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Author Topic:   Tranny coolers
Eric Pattridge
Dirt Full Roller

Total posts: 48
posted January 08, 2004 10:04 PM  
I'm switching to an aluminum radiator and going to run a transmission cooler. My question is, where to actually install the cooler? I have seen them installed inside the drivers compartment passenger side attached to the roll cage. I'm assuming this is to prevent it from clogging and damage from debris? Is there any other places to put it? I have thought about attaching it to the firewall in the engine compartment. Thanks. One day I'll be able to answer questions instead of asking all the time. LOL

racer17j
Dirt Forum Champ
Total posts: 5390
posted January 09, 2004 07:52 AM  
Thanks 17j. I will more than likely mount it on the firewall. Safer and hoses are shorter and cheaper to get made up. The cooler was a Christmas gift so I'll go ahead and use it. If running a racing aluminum radiator, what do you do with the transmission lines if your not running a cooler? In case something happens to it during a race or if I take it out.

ZachmanJ
Dirt Full Roller

Total posts: 38
posted January 09, 2004 09:28 AM  
i run mine infront of the radaiator, done this for 2 years without any problems, even had a few wrecked radaitors but the tranny cooler was always saved

rico 08
Dirt Forum Champ
Total posts: 1139
posted January 10, 2004 07:24 AM  
I'm thinking 'bout using a coil of copper next to the trans for a cooler.

wermm
Dirt Maniac

Total posts: 107
posted January 11, 2004 11:44 AM  
I hooked the two lines together and ran them over to the frame and up to the cross member, then along the back side of the k mem. Just tied it up real good with some zip ties. Has been like this for 2 years with no probs.

Raz_900
Dirt Forum Champ
Total posts: 635
posted January 12, 2004 07:32 AM  
Just curious, for the folks running without coolers, do you have a temp gauge? Just wondering what kinds of temps the fluid gets to without one.

When I had 1 B&M 3/4" cooler it would peg at 260-270 degrees after about 8-10 laps. Now I run 2 coolers in series and it stays under 210 if the race isn't a caution fest and 240 is about the highest I've ever seen. I know you can go without a cooler and just change the fluid often, but when it's 8 qts at $2.50 (Pennz syn blend), it only takes 2 - 3 changes to be more money than using a cooler. I've run the same fluid for 6 - 8 races and it still smelled and looked fine. Just changed it 'cause the tranny was out.


racer17j
Dirt Forum Champ
Total posts: 5390
posted January 12, 2004 04:26 PM  
You guys that don't run coolers, how many lap races do you run? We race either 200 or 300 lap races and probably 90% of the field runs external coolers.

Raz_900
Dirt Forum Champ
Total posts: 635
posted January 13, 2004 01:40 PM  
quote:
Originally posted by racer17j:
raz i don't have a gauge in it so i have no idea what it runs but i have had no problems with clutch failures in my bone stock tranny i only spend about 50 bucks on a tranny change seals and filter and fluid and go racing in the last 5 years i have had one tranny failure and that was the output shaft breaking not clutches burnt up. for fluid i run the cheapest stuff i can find usually go to sams club and buy a case of 12 qts for 9 bucks and i change it when i change the oil i have a couple buddies that run coolers and they go thru about 2-3 trannies each a year so untill i start to burn um up no lines to leak for me

That's interesting. My 'built' powerglide is on it's 3rd season clutch pack wise. Finally gave up on breaking stock cases and got a Dedenbear.. end of problems.

When I was waiting for the Dedenbear case to show up, I ran a stock PG with just my valvebody and deep pan. In 3 weeks it was toast. Warped the clutch drive plates so bad they looked like wave washers.

robhbk24
Dirt Freak

Total posts: 372
posted January 13, 2004 02:27 PM  
i'm switching to a tci glide this year but i ran my metric for 2 seasons with no cooler and no problems using the cheap fluid too never did change it either. when i had it rebuilt before this last season it was pretty well wooped but it also had alot of miles on the street before i raced it. i ran a small cooler this year cause the guy that did my tranny recommended it but it prob doesnt do alot the way it is mounted and i ran a 100 lapper like that with no problems. really the only reson i'm swithcing to the glide is because the coupler set up is so much lighter.

racer17j
Dirt Forum Champ
Total posts: 5390
posted January 13, 2004 02:53 PM  
i talked to jerry at tci last week and ordered a glide. i've given up trying something diff with the tranny and decided to go like everybody else and run the glide with 3.42 in 1st. not that the metric does'nt work it served it's purpose and i got my moneys worth considering a friend gave it to me but from what i can tell the performance diff will me quite a bit. i'm a top 5 car right now there are only three cars that are consitently quicker and i'm not that far off of them.

wermm
Dirt Maniac

Total posts: 107
posted January 13, 2004 09:44 PM  
last year I ran a th350 in second and that was the 3rd season on it. Who knows how many miles on it before that. This year I went to a glide out of a '67 Impala that had a gagillion miles on it, just threw it in and went. No probs. with either one changing the fluid 2 or 3 times a season.

doubletrouble
Dirt Forum Racer

Total posts: 82
posted January 15, 2004 04:28 PM  
We had a TH350 rebuilt last year only made about 3 races.We ran our cooler line like factory to stock raditor.We figures tranny fluid ran as hot as water temp witch Im sure burned up the clutches.We are planning to install small cooler mounted to fire wall.We run our tranny in low 1st gear on quarter mile high bank track with stock gears turns only about 5500 rpms.Still lotta stress on tranny

racer17j
Dirt Forum Champ
Total posts: 5390
posted January 15, 2004 07:27 PM  
double trouble clutches burn up because there slipping, seals get hard because of temp and time.Running to the radiator isn't hot enough to cause problems that select the trans and not the motor.if it was that hot you would have a hot motor to. are you sure your cooler had good flow? was the trans built right? If the seals get hard and crack and leak your clutches will slip and burn up.most of the heat is generated in the converter .I usually put a motor home size cooler on and bypass the radiator.been working good for the people I done that for.

doubletrouble
Dirt Forum Racer

Total posts: 82
posted January 16, 2004 10:44 PM  
Dirttracker7,you had some good points and all those things are possible.I was told by a race buff that fluid got to hot by running coolant lines to raditor and not a tranny cooler.We did have a seal leaking a little before it went out and it was slipping alittle as we loaded it up so I agree with your points.Keep'm up guys we ALL need the pointers

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