[Gmecm] Geting rid of electronic transmission.

[Programmer]

That's a keeper, Andrew. Thanks for that effort ! I've never put a truck on 
the dyno and watched cooler flow in lockup or 'unlocked' for that matter.

Lyndon.

----- Original Message ----- 
From: "Andrew Gibson" <andrewsharyn at yahoo.com>
To: <gmecm at diy-efi.org>
Sent: Friday, March 03, 2006 8:01 PM
Subject: [Gmecm] Geting rid of electronic transmission.


> Here's some info to put to rest the debate as to 4l60e/700r4 cooler flow. 
> I flushed one today and my flush machine has a gpm flow guage on it, so I 
> took advantage of it. I know some of you are going to say you've seen 
> otherwise. So have I, but the numbers were either a little higher or a 
> little lower. But not radically different.
>
>  At Idle
>  Park .8gpm
>  Reverse 1.2gpm
>  Neutral .8gpm
>  OD-1st .8gpm
>
>  2000 rpm wheels spinning
>  Reverse 1.2gpm
>  1st .8gpm
>  2nd .8gpm
>  3rd no tcc .8gpm
>  3rd tcc 1.3gpm
>  4th no tcc .8gpm
>  4th tcc 1.3gpm
>
>  Obviously having the tcc engages increases cooler flow, but the flow 
> never stops. Why the increase? The tcc piston is applied with fluid 
> pressure. Most trans clutch pistons have a vent hole that leaks. Leakage 
> from the tcc means more fluid being put in the converter so more has to 
> return to the trans... through the cooler. Point blank: the cooler always 
> flows no matter what. It just flows more when the tcc is engaged. So it 
> looks like all of us were at least somewhat right concerning the cooler 
> flow.
>
>
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