Re: 4L60E Trans controller

["nacelp" <nacelp@bright.net>]

> The other driveability issues I refer to include shift overlap, part
> throttle shift, and an option to engage overdrive between gears, if you'd
> like to use it as a gear splitter. A connection is also included that
would
> permit paddle-type shifters to bang through all 6 possible gear ranges
> (that's 3 gears plus overdrive after each).

shift overlap?.  What do yoiu mean by that?.

engage overdrive between gears.  During the gear change engage the TCC?. For
what reason?.
It's really not a gear splitter, just eliminates the converter slippage.  A
flip flop and toggle switch I think would get you the same thing.

I don't see issues, just novel (?) options.  Still nothing that editing a
pcm with available hardware doesn't get you, at a lot less cost.
Grumpy

> The ecm/tcm trucks I refer to are MY 98-00.
>
> > -----Original Message-----
> > From: nacelp [SMTP:nacelp@bright.net]
> > Sent: Thursday, March 09, 2000 12:56 PM
> > To: gmecm@diy-efi.org
> > Subject: Re: 4L60E  Trans controller
> >
> > Isn't this an answer that involves just throwing money at the problem?.
> > Or was this an item that was thrown at you to evaluate?.
> >
> > > I'd opt for the Speed Pro T-Com aftermarket trans computer. It's a
> > > stand-alone unit that's programmable via laptop, and allows for
> > programming
> > > of shift points, line pressure, converter lockup, and many other
> > > driveability features.
> >
> > What other drivibility features?.
> >
> >  I did an installation on a 99 T/A, and differences
> > > are dramatic. The coolest part is that I've programmed it to be real
> > subtle
> > > under 75 % throttle position, then past that point, all of the changes
> > > (revised shift points, increased line pressure, etc.) kick in, and the
> > trans
> > > gives a real Jekyll and Hyde attitude to the car.
> >
> > Real subtle can cause excessive heat-wear.
> >
> > I recommend it highly. One
> > > note though, on late model PCU-equipped F-bodies, the stock computer
> > still
> > > looks for trans inputs, and the SES light is illuminated. I'm creating
a
> > > daughterboard to feed the factory trans plug the voltages it's seeking
> > per
> > > the GM Service Manual, and this should cure the dash light blues.
Using
> > the
> > > T-Com in a  pickup truck won't cause any dash light issues, since the
> > truck
> > > uses separate ECM/TCM computers.
> >
> > Which trucks are these other then maybe the diesels?.  Last numbers I
> > looked
> > at like the 8625 was a PCM, meaning engine tranny were together.  Course
> > my
> > data ends about MY 96.
> > Grumpy
> > Originator of CSH, HQ
> > >
> > > Scott Parkhurst
> > > Technical Editor
> > > Popular Hot Rodding Magazine
> > >
> > > > -----Original Message-----
> > > > From: gene l. clifford [SMTP:genelc@idworld.net]
> > > > Sent: Thursday, March 09, 2000 9:25 AM
> > > > To: gmecm@diy-efi.org
> > > > Subject: 4L60E  Trans controller
> > > >
> > > > Has any one been able to get a Price on GM part# 12497316
> > > > This is a stand alone Trans controller for a 4L60E automatic
> > > > any other info on above part would be welcome?
> > > >                                                 GLC
> > > > PS part is listed on pg. # 170 of yr. 2000 GM performance Cat.
> > > >
> > >
> > >
>
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