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Re: [oletrucks] Radiator

To: <oletrucks@autox.team.net>
Subject: Re: [oletrucks] Radiator
From: "Robert Welch" <rwelch@ionet.net>
Date: Fri, 7 Apr 2000 10:24:21 -0500
I agree re the comments that the impact of a high stall converter impacts
trans fluid temps much more so than the engine temp, however, it has always
been my understanding that the primary use of the in-radiator trans cooler
is to bring the trans fluid up to operating temp.  Its use as a primary
cooling device for the trans fluid is limited - a couple of feet of 1/4" or
3/8" tubing does not make much of a heat transfer/cooling impact, thus the
recommendation by most any hi-po vendor or trans shop to run the external
trans cooler.  I do not run a radiator trans cooler, only the external one.
Of course, if you live in a very cold climate this might present a little
problem because the trans fluid will take longer to warm to operating
emp.  -Bob

----- Original Message -----
From: <ADvent@thuntek.net>
To: "joe" <chevy1@jps.net>
Cc: <oletrucks@autox.team.net>
Sent: Friday, April 07, 2000 10:17 AM
Subject: Re: [oletrucks] Radiator


> How does this heat transfer lessen with a hi stall converter? If the
converter
> slips more, then it will heat the fluid more. The fluid is cooled by the
tank on
> the radiator, so if the fluid needs extra cooling, then there is less
cooling
> abilities to cool the coolant. An auxiliary trans cooler is not enough to
bypass
> the trans cooler in the radiator. I once thought about trying an aux.
trans
> cooler with a blower motor. I never did try that. Besides cooler tranny
last
> longer.  For every 10 the fluid is cooled, may extend the trans.'s life
by 50%,
> especially important for OD automatics.  I see why you would use a hi
stall
> converter if the cam has an aggressive grind to it. I'm a country boy and
build
> motors for economy and work, lots of torque down low.


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