car slowing down

Discussion in '94-95 5.0 - Specific' started by 331mustang, Jul 2, 2007.

  1. 331mustang

    331mustang New Member

    Messages:
    18
    Likes Received:
    0
    Joined:
    Feb 26, 2007
    I've got a 94 gt vert with DSS 331 c4 with brake.first run out every weekend it runs a 12.02 with usaully a 1.566 60ft then it starts slowing down every run .went out today 1st run 12.02 with 1.558 60ft.becoming slower each round till finally 2nd elimination round it went 12.181 with a 1.603 60ft.any suggestions on what to do
     
  2. Magic

    Magic Well-Known Member

    Messages:
    1,639
    Likes Received:
    31
    Joined:
    May 3, 2007
    Location:
    Some time zone
    do you have enough cool down time between runs?
    track tempurature changes throughout the day?
    track prep at the line?
    air tempurature changes?
    winds?
    change in launch technique?
    equal burnout times?
    tire pressure consistent between rounds?

    compare your 60ft and 1/8th mile times.

    If you car is slowing down a cpl tenths, then IMO its nothing all that serious. But try and look at the "obvious" and compare them between runs.