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Re: [Land-speed] [BULK] Re: Towing a race car

To: "'LAND SPEED LIST'" <land-speed@autox.team.net>
Subject: Re: [Land-speed] [BULK] Re: Towing a race car
From: "Benn" <karhu@california.com>
Date: Mon, 8 Jun 2009 14:51:12 -0700
With the typical trans coolers inside the engine radiator, I would think it 
would be hard to heat the trans oil much above the coolant temp.  Yay?  Nay? 
Maybe those coolers aren't very efficient...  Another instance when I wish i 
had a manual tranny.
Benn

----- Original Message ----- 
From: "Bryan Savage" <b.a.savage@wildblue.net>
To: "John Staiger" <lsrvette@yahoo.com>
Cc: "'LAND SPEED LIST'" <land-speed@autox.team.net>
Sent: Monday, June 08, 2009 10:20 AM
Subject: Re: [Land-speed] [BULK] Re: Towing a race car


> Joe,
>
> Stepping back to auto transmission preservation...
>
> 98% of the heat is generated by the torque converter when it is
> torque multiplying/converting.
> The stock old TH-400, C-6 and A-727 quit converting and became a
> simple fluid coupling at 2600 to 3200 rpm. In that mode they generate
> about 5-10% of the heat generated in converting mode.
>
> I used my 1965 Dodge PU,  318CID & A-727 *without* a trans cooler for
> almost 40 years pulling numerous heavy trailers in So. Cal. summer heat.
> When loaded, I always shifted manually to keep the converter out of the 
> game.
> The trans *never* overheated.
> I gave it to a friend in 2004. It had 187,000 well serviced miles and was
> all original. It was due to have the seals replaced but if I let is run 
> for
> about 1.5 minutes on a cold morning, no problem. The oil in the pan
> and the can always smelled the same.
>
> I like your idea for a tow car.
>
> Bryan
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