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Thread: auto scaling transmission tables

  1. #1
    Advanced Tuner
    Join Date
    Jul 2006
    Posts
    218

    auto scaling transmission tables

    Im just curious on this. If i were to use this feature for a gear change from 2.93 to 3.29 would i just change the scale multiplier to .8905?

    2.93/3.29 = .8905

    and if i were to go from 2.93 to 3.69 would i change my scale multiplier to
    .7940?

    2.93/3.69= .7940

  2. #2
    Tuner
    Join Date
    May 2007
    Location
    Upstate NY
    Posts
    132
    There really isn't an answer for changing the gears, nobody knows. What i'm going to do it change the 4 speedo values and then remove about 25% from the transmission tables. The auto function doesn't work when we change gears, we really aren't changing gears, but sprocket ratio. It says there is a way to manually scale them using a value, without excel does anybody know how to do that?
    98 Buick GSX IS3 Heads/GenVblower/cammed/intercooled and stalled
    02 Collector Edition Trans Am WS6
    94 S-10 with Rancho 3" lift on 33's
    93 Typhoon
    07 Tahoe

  3. #3
    you can use the manual scale option on the speedo form. Just work out the factor (multiplier) you want to scale the tables up/down and the software will auto scale all the trans speed related tables.

    eg. if you went to a lower gear meaning you now go slower for the same RPM, you would scale your trans tables by a number like 0.9 or something.

    eg. when moving from say 3.42 gears to 3.91's you would scale the trans tables by 3.42/3.91

    Chris...
    I count sheep in hex...

  4. #4
    Advanced Tuner
    Join Date
    Jul 2006
    Posts
    218
    ok, i guess my assesment was correct.