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Author Topic:   overheating th350?
Racer0
Dirt Maniac

Total posts: 149
posted July 19, 2004 10:28 PM  
How long will a stock TH350 tranny with a converter run without a cooler before it destroys itself?

powerglides
Dirt Freak

Total posts: 374
posted July 20, 2004 12:45 PM  
15-20 lap features? All season if it is in good shape to begin with.

racer17j
Dirt Forum Champ
Total posts: 5390
posted July 20, 2004 07:17 PM  
Guess I should have stated it's for a demo car. I know it's not circle track but I figured probably 40 percent of us here do both. Was thinking about just looping the lines, but after reading the rules closer I have come up with a different plan.

racer17j
Dirt Forum Champ
Total posts: 5390
posted July 20, 2004 09:10 PM  
For a derby car that will work fine

WesternAuto17
Dirt Forum Champ
Total posts: 569
posted July 21, 2004 08:38 AM  
Has anyone on here actually run a th350 with a converter and without a cooler? A guy I knew tried it in a derby car and the trans caught on fire. Maybe he just had a bad tranny.

If you simply cap the cooler lines, how does the trans circulate the fluid?

I always thought that the cooler itself didn't help as much as the extra quart or two running through the trans helped to keep the thing from burning itself up.

jbracing
Dirt Full Roller

Total posts: 44
posted July 21, 2004 11:16 AM  
Kind of on the same subject, how well will a
T350 hold up running it in second? I have
always used a saginaw in second, thinking of
trying the automatic. Also what is the ratio?
Thanks,
John

Speedway65
Dirt Freak

Total posts: 344
posted July 21, 2004 01:46 PM  
We race with a th350 in 2nd for the last 2 yrs works great.The ratio in 2nd is 1.52.we just changed from a 4.10 rear to a 3.73 ratio.with a 82 tire we turn 6100 on a 3/8 high banked.

racer17j
Dirt Forum Champ
Total posts: 5390
posted July 21, 2004 10:49 PM  
The converter,cooler,lubrication circuit is a low pressure deal 20-30# and it has a bypass built in so if the cooler or line gets plugged it does not burn up the tranny.

[This message has been edited by powerglides (edited July 22, 2004).]

WesternAuto17
Dirt Forum Champ
Total posts: 569
posted July 22, 2004 07:11 AM  
Thanks, glides. I figured there must be some kind of bypass.

I've seen a lot of guys in derbies run their tranny lines thru actual coolers full of ice.

    

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