Electronic Transmission Control

[Swayze]

drop in on www.442.com the transmission FAQ there is pretty good. 4L80E looks good stock, 200R4 looks good beefed. 300HP and highway gears with 3.31 rear gear (should be able to get out of its own way) (2800-3200 # curb weight).
what parameters do the electronic(PCM?TCM?) controllers look at and adjust? 
byE
Mike
Swayze
mswayze at truswood.com
kswayze at bellsouth.net

----- Original Message ----- 
From: "Tom Sharpe" <twsharpe at mtco.com>
To: <diy_efi at diy-efi.org>
Sent: Saturday, March 11, 2000 12:42 AM
Subject: Re: Electronic Transmission Control


> <snips>
> 
> Doug Dayson wrote:
> 
> > Hi All...
> >
> > Note that the mid 1988 and later 700R4...4L60...and 4L60E's are essentially
> > identical with the exception of the E's electronic controls...
....
ratio's...3.06...1.62...1.00...0.70
> >
> > 2004R ratio's...2.75...1.57...1.00...0.67
> >
> > 4L80E ratio's...2.48...1.48...1.00...0.75
> >
> > TH-400 ratio's...2.48...1.48...1.00
> >
> > TH-350 ratio's...2.52...1.52...1.00
> 
....
> > The 4L80E is perhaps the best bet from a racer's or towing standpoint as it's
> > got the closest ratio spread and it's torque capacity is the highest...but
> > it's physically longer and slightly larger in diameter than it's cousin the
> > TH-400...and it weighs 100 lbs more than the others excepting the TH-400...and
> > it's parasitic drain is about 50HP more than the others...
> >
> > Also of note concerning the 4L80E's...I've heard that their sprags are weak
> > compared to a TH-400's...fortunately the TH-400 sprags will retrofit...
> 


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