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Thread: What is the Sniper Coil Driver for?

  1. #21

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    Installing a Sniper EFI system and wanted to know if the coil driver is as good as an MSD Digital 6AL box? Had purchased the box then realized the coil driver came with the Sniper EFI. I personally don't really see any advantage or disadvantage other than getting back the $250 I spent for the MSD box and less wiring. I'm going to run a MSD Pro Billet distributor. Any thoughts, am I correct in my thinking? Thanks in advance.

  2. #22
    Join Date
    Dec 2009
    Location
    Connecticut
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    18,692

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    Quote Originally Posted by Qrss123 View Post
    Installing a Sniper EFI system and wanted to know if the coil driver is as good as an MSD Digital 6AL box?
    "As good", that depends on a lot of factors. Read below.

    I personally don't really see any advantage or disadvantage other than getting back the $250 I spent for the MSD box and less wiring.
    I always recommend using a CD ignition box with distributor type ignition systems. Here's why: LINK.
    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

  3. #23
    Join Date
    Jan 2016
    Location
    Wisconsin
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    39

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    Quote Originally Posted by bryaneh View Post
    I created my own clean +12V switched power by using a relay. I trigger the relay with +12V switched power from my fuse box, and run 10/12 gauge wire directly from my battery (along with a 14 gauge fusible link) to supply the power. I mounted one of these to my firewall for all of my switched power: http://www.madelectrical.com/catalog/cn-1.shtml
    Since I have no open spots on my factory fuse panel for another switched power source, can I make a junction like this with a relay and use it for my switched power to the ECU? The coil driver and also the transmission power which is only 5 amps? I could put a diode on each of those to help with feedback. It might help cleanup my wiring under the hood too.

  4. #24

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    Reading through this thread got me to thinking. I'm having some issues using timing control. Can I use the switched +12V I use to turn on the Sniper system to also power the coil driver? Or should I find a different source?
    '73 K5 Blazer, built 350 SBC 375 HP/425 TQ, 12" F/18" R suspension travel. Deaver springs with King shocks, D44/12 bolt, 3.73 gears, lunchbox locker F/Auburn Posi R, crossover steering, 35" BFG Mud Terrains, Vintage Air system, PRP suspension seats, lots of custom work, all built by me.

  5. #25
    Join Date
    Jan 2016
    Location
    Wisconsin
    Posts
    39

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    Let's see what the guru of Holley EFI has to say. A shared relay under the dash would help me a ton.

  6. #26
    Join Date
    Dec 2009
    Location
    Connecticut
    Posts
    18,692

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    You can do either way. Just ensure the Sniper EFI Switched +12V pink wire is powered in the "Run" and "Crank" key positions.
    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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