Holley Sniper Timing Map Development

Discussion in 'High Tech for Old Iron' started by Rockable, Feb 18, 2021.

  1. Rockable

    Rockable Well-Known Member

    Still trying to get my car to cool properly. After several different attempts, I put a mechanical fan on and it immediately started to behave. Today, I finished up a shroud and ordered a fan, so I should be able to resume Sniper development soon. I'm already pretty close on my tune up.
     
    patwhac, 68Rivi_In_Cali and mbryson like this.
  2. 68Rivi_In_Cali

    68Rivi_In_Cali Well-Known Member

    I've been running the Sniper EFI system for a while and timing control and I also am barely getting into messing with the settings.

    I have it on my 430 with TA 284 Cam.

    Runs really well but I hear some pining at times when I got WOT. you are right, the WOT timing tip in is like an on switch, I need to figure out how to smooth that. I don't get the pinging if I ease into the throttle.

    Will most likely play with the settings as well but I also began running hotter after messing with the timing. I am running a Derale dual 12 inch fans with box shroud and a champion radiator controlled by the sniper Unit.

    Can't wait to see how your table ends up.
     
    mbryson likes this.
  3. magilla2

    magilla2 Well-Known Member

    Either of you have any files you can share for base timing, AFR, and fuel map for a stock Buick 350?

    I have the Hyperspark dizzy and the Holley coil unit, and am running the progressive linkage and extended throttle arm, but I have offsets for those. Just wondering what AFR table you shot for, and your advance table.
     
  4. magilla2

    magilla2 Well-Known Member

    Rockable, would you be willing to share the sniper AFR table and timing table? Or even the config file?

    I have a stock Buick 350 with stock exhaust manifolds.
     
  5. 72gs4spd

    72gs4spd Well-Known Member

    magilla2 likes this.

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