Results 1 to 5 of 5

Thread: Retarding the timing on blown engine

  1. #1
    Senior Member MASTER BUILDER
    Join Date
    Aug 2007
    Location
    Iowa - USA
    Posts
    218

    Retarding the timing on blown engine

    How much timing should the ignition be retarded on a blown bbc per pound of boost? Or should it?

  2. #2
    Junior Member SHOW GUEST
    Join Date
    Mar 2010
    Posts
    2

    Blown BBC Timing

    Assuming that you are using a mag (locked, no advance), set your total timing within your tuning window and leave it alone.

  3. #3
    Senior Member RACING JUNKIE
    Join Date
    Jan 2006
    Location
    La.
    Posts
    2,890
    It totally depends on the engine, blown alcohol usually likes around 32*, if you lay a little nitro on it it needs to be down to 28*'s and even lower depending on how much nitro.

    just from my experience

    Zip.

  4. #4
    Senior Member MASTER BUILDER
    Join Date
    Aug 2007
    Location
    Iowa - USA
    Posts
    218
    The car is just your run of the mill 67Camaro. Gas. Distributor and msd 7

  5. #5
    Senior Member RACING JUNKIE
    Join Date
    Jan 2006
    Location
    La.
    Posts
    2,890
    A freind of mine runs a 871 on a 383 small block. He has it set at 32* with an automatic 4* retard at 8lbs. It's 4500 lb shortbed chevy and street driven, but runs in the 11's in the qtr. mile. I don't know how he has it wired up, but he also uses a MSD.

    hope this helps

    Zip.


Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •  
Email us - Support@RacingJunk.com
Call us - 866.326.9227
Copyright © 2005-2016 RacingJunk.com All Rights Reserved.

Designated trademarks and brands are the property of their respective owners. Use of this Web site constitutes acceptance of the RacingJunk.com
Terms of Use, Classifieds Disclaimer, Privacy Policy, and Cookie Policy