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Thread: Holley HP EFI SBF

  1. #1

    Default Holley HP EFI SBF

    Can some one email me or send me a link for everything needed to run smart coils on my 9.5 deck SBF. I don’t want a crank trigger unless I have too. Or a previous build anything I have a HP kit and that’s nothing else.

  2. #2

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    You need a cam & crank sensor, and the CNP harness. The cam & crank can come from a dual sync distributor. That CNP harness is 558-307. You will also need the coil harness and of course the coils.

  3. #3

    Default

    Or just run the dual sync distributor and a cheap MSD CDI box & coil and be done?

  4. #4

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    Works great for carb cars and scooters!
    If you want an all Holley setup here's what you want:
    https://www.holley.com/products/igni.../parts/556-128
    https://www.holley.com/products/igni.../parts/558-307
    Wire plugs come in at $109, pick and choose your color just get cut to fit
    Comes in at $922 not including brackets

    LS junkyard coil option:
    Coils PLUS sub harnesses ~100.
    https://www.holley.com/products/igni.../parts/558-307
    https://www.holley.com/products/fuel.../parts/554-122
    Wire plugs come in at $109, pick and choose your color just get cut to fit.
    Comes in at $499 not including brackets.

    You can either go dual sync, crank trigger and retrofit your distributor, or go with crank trigger with a drop in cam sync distributor. The latter two get a signal every 10° instead of 90°.

  5. #5
    Join Date
    Dec 2009
    Location
    Connecticut
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    Default

    All the information you'll need: https://forums.holley.com/showthread...6274#post56274 (Related Forum Post)
    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

  6. #6

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    Quote Originally Posted by Stangwell View Post
    Or just run the dual sync distributor and a cheap MSD CDI box & coil and be done?
    Yes. CNP is technically better, but that's it.
    '95 Lightning, HP EFI, 351W, S472SX-E,20PSI,pump and W/M

  7. #7

    Default

    "Technically" better?
    - No rotor phasing.
    - No rotor gap to cross.
    - More voltage than an HVC2. (go check your ACTUAL voltage on the secondary, primary box volt output x coil turns ratio, you WILL be surprised.)
    - Wider timing range (lean cruise).
    - Spark duration! This one is huge. 0.15ms for an HVC2 vs 2.0ms to 3.0ms for individual coils.
    - Even with two sparks below 3000 RPM individual coils still have 7x the duration.
    - Less chance of plug wires interfering with something.
    - LESS RFI/EMF NOISE! CDI is noisy as heck.

  8. #8

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    Show me a documented horsepower gain, and maybe it'll change my opinion.
    '95 Lightning, HP EFI, 351W, S472SX-E,20PSI,pump and W/M

  9. #9
    Join Date
    Dec 2009
    Location
    Connecticut
    Posts
    18,631

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    Oh, not this again!
    http://forums.holley.com/showthread....3038#post33038 (Detailed Crank Trigger/DIS Conversion Information & Reasoning)
    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

  10. #10

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    Quote Originally Posted by bWright View Post
    Show me a documented horsepower gain, and maybe it'll change my opinion.
    CD ignition belongs on carb cars & scooters!

    Quote Originally Posted by Danny Cabral View Post
    Oh, not this again!
    http://forums.holley.com/showthread....3038#post33038 (Detailed Crank Trigger/DIS Conversion Information & Reasoning)
    Oh dear.

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