effects of retarding ignition?

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  • mspiegle
    E30 Enthusiast
    • Oct 2003
    • 1026

    #1

    effects of retarding ignition?

    This is kind of a general question... are there any negative effects of retarding the ignition besides lost power?

    How effective is retarding the ignition to run more boost safely?

    thanks
    Michael Spiegle

    '01 Ford Escape / Daily Driver
    '99 M3 / Track Car
    '87 325is bronzit / wtf car
    '06 Daytona Triumph 675 / Daily Rider
  • gstuning
    E30 Modder
    • Oct 2003
    • 833

    #2
    Hey Mike,

    Ignition timing isn“t just retarding and advancing, as the idea is to find the correct amount of advance for the timing,

    so retarding it is only from the stock point of view, or less advanced,

    Correct ignition timing will net, better fuel economy, power, smoothness, and wear on the motor,

    Having a fuel injection you can control the advancement of the ignition so it can be ideal under all the conditions your motor can put it self in,

    under boost retarding the ignition you gain time to let the piston comes a little higher so there will be no pinking/knocking/pre-detonation,

    Retarding the ignition is very effective, you can ask TCD on this chat forum when they built their 325i turbo they simply added fuel and retarded ignition, 259rwhp was one figure I remember, bellive it was 10psi of boost and all stock internals
    Gunni
    @ Prodrive / Aston Martin Racing

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    • mspiegle
      E30 Enthusiast
      • Oct 2003
      • 1026

      #3
      hey, thanks gunni. Do you know how bad pinging is? Last night I was driving around and slowly pushing the pedal towards WOT until I heard pinging, then would reconfig the SMT6, then go back to driving and listening for pinging. Do you think theres any harm in doing this?
      Michael Spiegle

      '01 Ford Escape / Daily Driver
      '99 M3 / Track Car
      '87 325is bronzit / wtf car
      '06 Daytona Triumph 675 / Daily Rider

      Comment

      • clutterbucker
        E30 Addict
        • Jun 2004
        • 481

        #4
        what the hell does a ping sound like?

        sorry to bug you
        - 2000 Audi S4 Stg 2 (sold)
        - house (bought)
        - 1997 Civic Hatch (shaky but driveable)
        - 2010 Sportster 1200 Forty Eight Ed. (vroom)
        - 1991 318is S50B30 (TBA)

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