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timing and other concerns

Discussion in 'EFI Tuning Questions and Engine Management' started by danval, Nov 3, 2014.

  1. danval

    Joined:
    Feb 27, 2009
    Ok, ive been trying to do some research, but havnt found exactly a setup like mine in relation to timing. Pretty close setups, so I have a general idea but rather have you experienced turbo 5.0 guys guide me. Im going to run a stock ecu, prom maf for 42# green tops, intank 250 lph walbro and main 300lph bosch. Going to run 10psi and got an msd btm with a billet magnetic distributor. First question is what should I setup my base timing at? and how many degs I should pull out per pound? Also, whats the best spark plug for my setup and gaping? Im planning on using 91 pretty much all the time and throw some octane booster whenever I go and have fun at the drift track. Ideas, comments? Thanks
     
    danval, Nov 3, 2014
    #1

  2. 91turboterror

    Joined:
    Mar 17, 2013
    I don't know if there the best but I run autolite spark plugs in mine 2 heat ranges colder than stock. I'm at 12psi. My gap is at .24 all I have is a msd tfi coil.
     
    91turboterror, Nov 3, 2014
    #2

  3. 95MustangGT331

    Joined:
    Mar 4, 2008
    posted on accident
     
    95MustangGT331, Nov 3, 2014
    #3

  4. myturbocobra

    Joined:
    Jun 14, 2014
    Copper plugs, a couple ranges colder. Don't waste your money on octane booster.
     
    myturbocobra, Nov 3, 2014
    #4

  5. danval

    Joined:
    Feb 27, 2009
    Thank you guys. And what about timing? Whats a good reference point to setup base timing? Alsi, no octane booster, so throw some race fuel in the tank?
     
    danval, Nov 4, 2014
    #5

  6. TTF/Ken Staff Member

    Joined:
    Dec 31, 2011
    16-18 degrees as base, and move up from there. I agree about octane booster. There is a common scam in that industry.... when the bottle says "raises octane by up to 4 points" (or whatever amount), what they mean is "0.4". Additional octane isn't going to buy you an extra power unless you increase timing, frankly I'd get an E85 tune setup and run that if it were me. You can run plenty of additional timing with it, plus its cheap enough you can run it on the street.
     
    TTF/Ken, Nov 11, 2014
    #6

  7. Disney Lincoln

    Joined:
    Feb 14, 2003
    What are you tuning it with?

    First things I would do is get rid of any MSD ign box or distributor. Run Crane, Accel, or about any other box. and run the stock distributor.

    No need for a BTM, you can control the advance in the tune.
     
    Disney Lincoln, Nov 21, 2014
    #7

  8. decipha

    Joined:
    Nov 28, 2007
    x2, the man has spoken ^^
     
    decipha, Dec 3, 2014
    #8
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