High Stall converter heat
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Instructor
Joined: Jun 2000
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From: Marysville, WA
High Stall converter heat
Does anyone have any data on the amount of heat which has to be dissipated due to the added friction of a high stall converter? Any ananlysis done to estimate the life expectancy of the trans using a higher stall converter with added cooling of the trans fluid? Does anyone use added insulation under the console area to suppress the heat build up of the higher stall converter? Thanks in advance!!!
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From: Athens AL
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Re: High Stall converter heat (Greenvette)
if you increased the stall of your TC then you need to buy a tranny cooler. Any stall over about 2400 would need it if you wanted the transmission to last.
Burning Brakes
Joined: Aug 2000
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From: Warrenville IL
Re: High Stall converter heat (vader86)
Precision Industries does not require an additional trans cooler with thier higher stall converters.
However, I agree it's cheap insurance.
"An additional oil cooler is not required for high performance converters used in typical street or strip applications although added cooling is a good thing.Care should always be exercised when runup is made at the start line. Any excess time at stall puts the converter at risk due to heat build up. This type of heat buildup would not be saved with a cooler due to the time involved to get rid of the heat. If a vehicle is to be used in towing, an added cooler is a must. However, for normal use, added cooling is not required. The better the converter is designed, the more efficient it will be and the lower the amount of heat that is generated."
However, I agree it's cheap insurance.
"An additional oil cooler is not required for high performance converters used in typical street or strip applications although added cooling is a good thing.Care should always be exercised when runup is made at the start line. Any excess time at stall puts the converter at risk due to heat build up. This type of heat buildup would not be saved with a cooler due to the time involved to get rid of the heat. If a vehicle is to be used in towing, an added cooler is a must. However, for normal use, added cooling is not required. The better the converter is designed, the more efficient it will be and the lower the amount of heat that is generated."
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Joined: Oct 1999
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From: Somers NY
Re: High Stall converter heat (BobMachus)
I went with a Vigilante 2800, & I also installed an extra cooler, & the trans will run about 185 deg in the highway (65-70 mph) however if I'm going slow 30-40 especially UP a long hill, the trans temp has gone as high as 225..
When I drive around town (the converter is never locked up) I always try to take it easy.. I also keep my digital gauge set to trans temp..
I have an analog gauge for water temp, oil temp, & oil pressure, so I always keep an eye on trans temp..
At the track its no problem as I have over 1/2 hr between rounds..
)
When I drive around town (the converter is never locked up) I always try to take it easy.. I also keep my digital gauge set to trans temp..
I have an analog gauge for water temp, oil temp, & oil pressure, so I always keep an eye on trans temp..
At the track its no problem as I have over 1/2 hr between rounds..
)
Burning Brakes
Joined: Aug 2000
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From: Warrenville IL
Re: High Stall converter heat (Mojo)
In front of the radiator/AC condensor is the best place for it, you want to get as much air as possible.
John, did you ever have the trans temp gauge hooked up before you installed the converter
& cooler ? Just curious what normal trans temps are like with the stock converter & no additional cooler on these cars.
[Modified by nickd, 2:23 PM 11/6/2001]
John, did you ever have the trans temp gauge hooked up before you installed the converter
& cooler ? Just curious what normal trans temps are like with the stock converter & no additional cooler on these cars.
[Modified by nickd, 2:23 PM 11/6/2001]
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From: SE NY
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Re: High Stall converter heat (Greenvette)
I was told by Patt Barrett at Level 10 that their 12" 2,400rpm stall lockup TC doesn't require additional tranny cooling but that higher stall should have it. And remember that as you add torque you raise the stall or flash point of the TC.
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From: Former NCM Drag Racing coordinator, National director Corvette Challenge Spring Hill, Tennessee: Whiting, New Jersey
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Re: High Stall converter heat (Mojo)
Mine is mounted on the P/S cooler. Didn't want it in the rad area because i've got a bottom breather air intake so i didn't want to introduce anymore heat to that area.
Race Director
Joined: Oct 1999
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From: Somers NY
Re: High Stall converter heat (nickd)
John, did you ever have the trans temp gauge hooked up before you installed the converter
& cooler ? Just curious what normal trans temps are like with the stock converter & no additional cooler on these cars.
[Modified by nickd, 2:23 PM 11/6/2001]
BTW my cooler is mounted in front of the trans cooler also..
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From: Plymouth MI Formerly Milford, MA MI
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Re: High Stall converter heat (nickd)
What is too hot? When are you in danger?
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From: Former NCM Drag Racing coordinator, National director Corvette Challenge Spring Hill, Tennessee: Whiting, New Jersey
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Re: High Stall converter heat (L98Terror)
I would try not to run it higher than the motor oil temp.
