Results 1 to 2 of 2

Thread: Can some 4l80 guy figure out my shift points for me

  1. #1
    Advanced Tuner ALB's Avatar
    Join Date
    Jun 2007
    Location
    regina,sk canada
    Posts
    311

    Can some 4l80 guy figure out my shift points for me

    I can't seem to get my tune to do proper shift points.
    I had to input in manually to get my speedo right. No idea why. My blended 4l80 file was 2.23 but now converted it from read off car to 2.22. I had not good luck wiht 2.23 and waiting for the new 2.24. I won't use 2.23 again.

    I am trying to figure shift points for 4l80 with 3.54 rear gears. But also my blended file is truck file and trucks shift very low. I will shift at like 6700 with redline of 7000 at track. Or at 6500 redline with 6200 shift points on street. IF you change redline doesn't the shift points part throttle change as well?
    99 TAWS6 ERL 427 superdeck,AFR 225, LS9 cam, 1.7 yella terras, fluiddampr, fast 90/90,APS Twin turbos LG upgraded turbos,cutout.80 pound injectors, RPM 4l80e ,yank py3400, dana 60, lonnies dual pump fuel system,zex direct port,ron davis rad,ais alc injection
    interceptor guages, eboost 2.

    Other toys 91 race talon turbo awd, 97 talon awd turbo, 2008 Z06

  2. #2
    Advanced Tuner
    Join Date
    Mar 2005
    Location
    DFW
    Posts
    293
    Quote Originally Posted by ALB View Post
    I can't seem to get my tune to do proper shift points.
    I had to input in manually to get my speedo right. No idea why. My blended 4l80 file was 2.23 but now converted it from read off car to 2.22. I had not good luck wiht 2.23 and waiting for the new 2.24. I won't use 2.23 again.

    I am trying to figure shift points for 4l80 with 3.54 rear gears. But also my blended file is truck file and trucks shift very low. I will shift at like 6700 with redline of 7000 at track. Or at 6500 redline with 6200 shift points on street. IF you change redline doesn't the shift points part throttle change as well?
    Try out Bluecat's spreadsheet:
    http://www.hptuners.com/forum/showthread.php?t=27981

    No, if you change WOT shift points, it will not change the part throttle. Just make sure the 100% TPS shift point is the same as the WOT shift point.