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Thread: Hard Start Issue

  1. #1

    Default Hard Start Issue

    I've posted on here a couple times about a hard start issue kicking back and breaking starters since using timing control. I ran into a friend of my cousin's who runs a Dominator system on his Vette. Bouncing things back & forth, he asked about my idle timing. I said it was at 28°, which he stated was too high. My engine idles best there, so I want to leave it. But I mentioned my Cranking Timing is at 10°. He asked what RPM it was set to switch to regular timing. That is set to 400 default. Moving that to 600 RPM gives the engine a little time to spin over before it jacks the timing up an additional 18°. So far it has worked. Been driving it everyday for two weeks without a hiccup. Just posting in case someone else is having the same issue.

  2. #2
    Join Date
    Dec 2009
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    Default

    Quote Originally Posted by 69RSClone View Post
    Bouncing things back & forth, he asked about my idle timing. I said it was at 28°, which he stated was too high. My engine idles best there, so I want to leave it.
    http://forums.holley.com/showthread....e-Tuning-Notes (EFI Idle Tuning Notes)

    He asked what RPM it was set to switch to regular timing. That is set to 400 default. Moving that to 600 RPM gives the engine a little time to spin over before it jacks the timing up an additional 18°. So far it has worked.
    I've never had any problem with the default Crank To Run RPM of 400.
    May God's grace bless you in the Lord Jesus Christ.

    '78 BRONCO: 508" stroker, TFS heads, 11:1 comp ratio, Dominator MPFI & DIS, cold air induction, Spal dual 12" fans/aluminum radiator, dual 3" exhaust/Magnaflow mufflers, Moroso vacuum pump, Accusump, engine oil & trans fluid coolers, 100HP progressive dry direct-port NOS, A/C, LenTech Strip Terminator wide-ratio AOD/2500 RPM converter, 3:1 Atlas II, modified Dana 44/60-lockers-4.10s, hydroboost/4-disc brakes, ram-assist/heim joint steering, Cage long radius arms, traction bars, 4" Skyjacker lift, 35" mud tires

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