Anyone got experience with a PCM using a 4L60E?

[TK]

Ten bucks. it has the following:

+-----'PUL/REV' TURBINE SPEED CONSTANT, 1ST-4TH GEAR------+
¦                                                         ¦
¦PUL/MILE                                                 _
¦                                                         _
¦        14.91   10.44    6.64    3.57                    _
¦                                                         _
¦          4TH     3RD     2ND     1ST                    ¦
+Enter a value between 0.23438 and 15360.00000 - Press ESC+


and....

+----------------------ROAD SPEED CONSTANT-----------------------+
¦                                                                ¦
¦                                                                _
¦                                                                _
¦PUL/MILE   24149.3                                              _
¦                                                                _
¦                                                                ¦
+Enter a value between 3622.00000 and 237412144.00000 - Press ESC+

Terry

----- Original Message -----
From: Ken Kelly <kenkelly at lucent.com>
To: <gmecm at efi332.eng.ohio-state.edu>
Sent: Thursday, August 12, 1999 2:31 PM
Subject: Anyone got experience with a PCM using a 4L60E?


>
> I've posted a few times with progress on my LT1 Editor for
> the 16208051, We are making a lot of progress lately and I
> have two beta testers with most of the Event side done. The
> Timer side has presented some unique problems. It turns out
> that the thing I thought would be the simplest edit is
> proving to be the most difficult!
>
> Gear Ratio !! Who would have thought. It was easy to find
> the Integer value used for the scale factor and figure it
> out. Next I did a compare between a stock GM 2.73 bin and
> the 3.23 bin. Now I discovered that two scale factors in the
> Event chip change with gear ratio, so I really can't treat
> the Event and Time chips as seperate entities. I
> re-architected my editor to work both chips at the same
> time, and proceeded. A detailed comparison of the 2.73 and
> 3.23 chips turned up several dozen other changes. some
> looked like tables. Searching GM data and scanner outputs I
> found a part throttle shift table with each shift at 12%,
> 25%, and 50% TPS. It appears to be based on output shaft
> speed and it varies with gear ratio. There are also some WOT
> shift variables, and downshift variables. Looking at some
> aftermarket chips with 3.73 and 4.56 gears shows as many as
> 117 changes with the gear ratio. These are independent of
> the large part throttle upshift/downshift table. HELP!!
>
> ANyone understand the 4L60E, our have a Hack file for a PCM
> that controls a 4L60E?
>
> Ken
>