Ignition Lead - How much is good?

Discussion in 'PSI Superchargers Tech Questions' started by Al Napier, Oct 14, 2005.

  1. Al Napier

    Al Napier New Member

    Joined:
    Jan 25, 2005
    Messages:
    17
    Likes Received:
    0
    Howdy - Dumb question here. I read recently on another (nostalgia style) board that some folks are running as much 75 degrees advance with their blown (6-71) nitro cars.

    Does this also apply to A/FD's and other nitro fueled cars or just that type of combination the NFC guys are using with the limited blowers, pumps and mags?

    Just curious. I don't know very much about nitro but would never have guessed 75 degrees in my wildest imagination. :rolleyes:

    Al in CT
     
    #1
    Al Napier, Oct 14, 2005
  2. Mike Canter

    Mike Canter Top Dragster
    Staff Member

    Joined:
    Mar 10, 2004
    Messages:
    4,630
    Likes Received:
    189
    Yes nitro methane cars use that much advance because it is such a slow burning fuel. The NHRA rev limiters used on Top Fuel cars are taking 50 degrees of timing out of the motor if they get over a certain rpm.
     
    #2
    Mike Canter, Oct 14, 2005
  3. Al Napier

    Al Napier New Member

    Joined:
    Jan 25, 2005
    Messages:
    17
    Likes Received:
    0
    Wow! I'd never had thunk it, that much advance - Thanks for the reply.

    Al in CT
     
    #3
    Al Napier, Oct 14, 2005
  4. Will Hanna

    Will Hanna We put the 'inside' in Top Alcohol
    Staff Member

    Joined:
    May 6, 2003
    Messages:
    6,706
    Likes Received:
    133
    most a/fuel dragsters are running static timing anywhere from 55 to 65 degrees. i've seen things get real ugly above that.... :eek:

    i was working with rudy when he tried 66 and it blackened and spun 4 mains....
     
    #4
    Will Hanna, Oct 18, 2005

Share This Page





XenPorta 2 PRO © Jason Axelrod from 8WAYRUN.COM