+ Reply to Thread
Results 1 to 4 of 4

Thread: retarded timing/AC

  1. #1

    retarded timing/AC

    Well can I reduce the timing retard when ac kicks on and off. I found the table for it but there has to be a reason that theres a retard in timing while starting and stoping the ac. The reason it bothers me is that it will drop 100 rpms then go back up to normal idle. So would it be safe to reduce that and make it not dip down so much or is that a safety thing for the ac clutch.

  2. #2
    Join Date
    May 2009
    Location
    Plainfield, IL
    Posts
    2,036
    the load on the motor changes a bit when compressor kicks in...i'm sure the rpm drop is due to THAT more then the tune...even old carb'd cars did it.
    blown transmissions are about as useful as 97% of the guys on this forum

  3. #3
    I cant say its not, but ive log it and it retardeds the timing alot.

  4. #4
    Join Date
    Feb 2010
    Location
    Central Texas
    Posts
    300
    I'm sure it's retarding timing do to the extra load made by the compressor coming on, but I really don't see the harm in removing the timing retard from this table however don't see where it would help either. What software are you using and what year truck I don't see that table in my CATS software

    BB

+ Reply to Thread

Posting Permissions

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