Shift Schedule

Shaw · #1 Mon, July 25th, 2011, 12:51 PM

Whats the trick to get the shift schedule to match actual vehicle speed. Example - I have my 3-4 shift flat lined at 41 mph and it will shift to over drive around 50 mph.
Ive tried to change the Tire size but it doesn't make any noticeable difference.

What ever it is, it is also affecting the Torque converter lock up in the same manner.

What did I do wrong

***cleatus12r*** · #2 Mon, July 25th, 2011, 01:42 PM

Nothing wrong.

What year is the truck? Is it a SD or OBS?

Shaw · #3 Mon, July 25th, 2011, 02:50 PM

I guess that would help -

2000 SD

***cleatus12r*** · #4 Mon, July 25th, 2011, 03:46 PM

Yeah, the SD truck stuff is all over the place as far as shifting goes and although it's all relative, the shift points themselves actually don't coincide with actual road speed too well. I love the OBS trucks for that. Usually, everything is within 2 MPH on those.

The SD trucks have anticipated shifting strategies and the like that really mess with what is actually going on.

Shaw · #5 Mon, July 25th, 2011, 04:25 PM

So even with the anticipated shift shut off its still going to be all over the place? If I get the emulator would it make dialing in the shifts a little easier you think?

***907DAVE*** · #6 Tue, July 26th, 2011, 02:24 AM

Have you tried adjusting the 3-4 Cruise instead of the 3-4 shift schedule?

Somehow those two got switched in my definitions.