Results 1 to 3 of 3

Thread: What changes or adjustments are needed for early transmission swaps???

  1. #1
    Senior Member
    Join Date
    Jan 2010
    Posts
    165

    Default What changes or adjustments are needed for early transmission swaps???

    I have'nt been able to find much info on swaps using early transmissions. Specifically what perameters need to be changed if your not using an electronicly controlled transmission??? Do I need to have some type of speed signal from the wheel or driveshaft??? I am not worried about Gauges as this would be for an older car.

    I want to make sure the engine starts, runs, and functions properly with an earlier transmission. Any tips or maybe links to this info???

  2. #2
    Lifetime Member
    Join Date
    Aug 2010
    Posts
    1,934

    Default

    Hello 1FastBrick,

    If you plan on running a non-computer controlled automatic transmission with a Gen III V8 - then a tune from a manual transmission vehicle is generally used. You need a VSS input to the PCM. This signal can be taken from the transmission, driveshaft, wheel - pretty much anywhere you want - then adjust the tune accordingly.


    Unless you already have a high quality non-computer controlled transmission - from an ease of tuning / driveability / fuel economy perspective I wouldn't recommend using one. A 4L60E or 4L80E (for heavy duty use) are much more user friendly and just about infinitely configurable - including the option of two different shift patterns - one for cruising / daily use, and another for the track / spirited driving.

    Regards,
    Taz
    Last edited by Taz; June 12th, 2011 at 11:07 PM. Reason: - typo

  3. #3
    Senior Member
    Join Date
    Jan 2010
    Posts
    165

    Default

    Thanks for the Info Taz. What are most people useing for a sensor and ring to get a VSS signal??? Are there kits availble for this type of conversion

Similar Threads

  1. Locking Converter Early?
    By jamesbond2509 in forum Tuning For Economy
    Replies: 16
    Last Post: January 22nd, 2014, 12:18 PM
  2. Can't find info on trans segment swaps
    By pullincrazy88 in forum General (Petrol, Gas, Ethanol)
    Replies: 5
    Last Post: April 12th, 2011, 01:19 AM
  3. Replies: 1
    Last Post: March 16th, 2011, 06:59 AM
  4. LS1/LS2 swaps?
    By Cougar281 in forum General (Petrol, Gas, Ethanol)
    Replies: 3
    Last Post: July 24th, 2007, 02:47 PM
  5. Trans upshift at WOT way too early ?
    By J 98ta in forum 4speed RWD/FWD Transmission Tuning (incl T42)
    Replies: 6
    Last Post: October 27th, 2005, 11:46 AM

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •