4L60E shift points

[maudyZ28]

hi all, im new here after just getting EFIlive,

ive done the simple stuff, EGR del, AIR del, rear O2 del and changed shift times to 0.3 , pressure up by 18% and torque management down by 15%, following joecars trans guide that is floating around on here

I have a question though about shift points, has anyone changed them such that at lower throttle its changed to a lower speed to cycle through gears faster, but at say 60% + throttle move to a higher speed to hold gears more and be more performance? I also assume I much change all shifts up and down, and the TCC lock up as per the other post lower in this forum section to prevent gear hunting

[joecar]

Hi maudy, welcome to the forum...:cheers:

shift points are a matter of personal preference...

make small changes to the PT up/down tables and go for a test drive;

be sure to keep the upshift table above the corresponding downshift table, say by at least 5 mph... this is called hysteresis and prevents gear hunting;

you'll find that the stock shift points and TCC tables are pretty good for low speed (upshifts quickly, holds higher gear, gives good fuel economy)...

you can probably make the upper 1/3 of each table more aggressive (hold each gear longer with less throttle, shift at higher speeds).

[ the tunetool shows the rpm in each gear at the bottom of the display for the cell under the cursor ]

Try small changes and see.

:)

[whackem04]

"[ the tunetool shows the rpm in each gear at the bottom of the display for the cell under the cursor ]"

And what a great feature it is!
How come it doesnt work on the Allison tunes?

[joecar]

Noted, thanks. :)