Sniper EFI: How To Wire And Setup For A CD Box Ignition

[@5oh_Pony]

How do I perform the requirement your mention at 1:22, and does it mean that you disable the rev limit function of the 6AL (Digital, in my case)?

[@callofgeorge]

you'd have to have the programmable one i would assume.. as for the rev limiter, remove it, leave it... don't think it matters as the msd won't be controlling the timing anymore once you configure sniper for timing control. to be on the safe side, just make sure the chip used is same or higher than the rev limiter you input into sniper..

[@KILLERBLACK5000]

What's the part# for the purple adapter wire?

[@jamesprice6575]

Do you not need to phase the rotor or lock out the dist?

[@callofgeorge]

not with a hyperspark. you do it all through software. just have to match physical timing to what the sniper sees.

[@CG-sr9xg]

If I have engine run on, will adding a diode to the small red wire fix that?

[@ScottDLR]

Very helpful video. Questions though, I have an old MSD 6AL that isn't digital. Does it function and connect the same as the one you show? Also, can I connect the ign hot wires from both the MSD 6AL and the Sniper's to the same wire from my ign switch? Finally, what is the P/N of the cable at 8:03? Thanks in advance.

[@HolleyPerformance]

Yes, the 6AL box should have the same color coded wires and connects the same way. It is recommended that you have a dedicated (only one load) switched ignition source for the Sniper. So if possible connect the MSD box to another switched source. The Ignition Adapter (Purple Wire) comes packaged with the main power harness in your Sniper kit. Thx J

[@ScottDLR]

Thank you very much for the reply.

[@SmokedTirez]

@@HolleyPerformance ..Is the Sniper system CARB approved??

[@MCFABRICATION]

@@HolleyPerformance Why is it so difficult to get a number from you for the purple wire? I’ve called, emailed twice, called, IG and no response… I have a purple/green wire coming off of the carb, a purple/green wire coming off of the carbs main harness and a purple/green wire coming off of the distributor… Where do these all go???

[@Austinbarton247]

How do you run a aftermarket tac if you are now hooking the sniper harness into the 6al box where the output for the tac is?

[@HolleyPerformance]

The should be a tach output both on the Sniper harness and the MSD harness you can use.

[@Austinbarton247]

@@HolleyPerformance fantastic, got it all working great now!

[@SmokedTirez]

@@HolleyPerformance ..Is the Sniper system CARB approved?

[@joelrushin4363]

What are the different coils can use? Was looking at sniper coil (556-153) msd blaster 2 coil, or a sniper hyper spark coil(556-152) with a sniper super stealth?

[@jebbucher1960]

I have a new Holley Sniper EFI and am using it on a SBC with existing MSD distributor (with mechanical tach drive) and MSD 5900 Blaster Ignition box. The magnetic pickup wire pair (purple and green) goes from the MSD box to the MSD distributor. The Blaster box has the purple/green to the distributor, black to ground, red & orange to coil, and an unused white wire. What wire do I run to the Sniper ECU for RPM?

[@handymanhart4121]

the sniper sucks so much air I thought I had a vacuum leak. When you fired that engine off it sounds the same so I guess it’s supposed to sound like that

[@buines2007]

Hello, I am interested in being able to use the EFi system in my ford y-Block that is today with msd 6al, it uses points for ignition and a blaster 2 coil, and on the dashboard I have a tachometer connected

[@hubertbryant5587]

Would a regular 6al wire the same

[@pablogaviria9265]

What about Vacuum Advance for Part Throttle Fuel Economy ?

[@callofgeorge]

you don't need vacuum advance as you can build a timing map based on vacuum vs rpm. welcome to the future...

[@nsmturbo5902]

@@callofgeorge Not in the scenario that was shown in this vid. The sniper has *NO* control over ignition timing with this setup... You need a compatible distributor if you want to utilize all the benefits of EFI! Pablo, if you're using an old school distributor just run a vacuum line from the Sniper throttle body and adjust your timing manually. Your timing will be no different than when you had a carburetor.

[@callofgeorge]

@@nsmturbo5902 ahhh.. you're 100% correct sir. then yup, just as you said.. run vac line to port on sniper and adjust as normal with carb.

[@madmikescustomDaily]

Wow

[@Rick-O-Shay60]

Where can I purchase one of those TDC Whistles?

[@MittenCrewOffRoad]

Amazon has them

[@ScottDLR]

Does the Sniper Pro kit control timing or do I need the Super Sniper?

[@HolleyPerformance]

The Base Sniper will control timing when you use an aftermarket magnetic (you must lock it out) or hall effect distributor. Thx J her is a link to the instructions, check out page 25 documents.holley.com/199r11031r.pdf

[@SmokedTirez]

@@HolleyPerformance ..Is the Sniper CARB APPROVED?????

[@MrPrelude98]

Can you run the 6a w the holley hyperspark and an msd cylinder coil its on a 302 ho 88 but idk if i did mine right amd I dont have anyone in town that deals w this tech wo charging arms legs n everything else and even then new tech. I live in El Paso btw. But anyway if you can give me some pointer or even a diagram that I can go by. Id like to enjoy my product n stop spending so much shop time on this project. Thank you

[@dominickthacker3183]

how would i use this on a ls with the msd 6014 box

[@HolleyPerformance]

The 6014 box controls 8 individual coils. I think the only way you could add a CD style ign box to this set-up , would be to add 8 individual boxes. not very cost effective! Plenty of people are making 1000+ HP on stock LS style ignitions. Sorry, Thx J

[@blackwidowprobe]

HolleyPerformance I don’t think he wants it to control the ignition, just the fuel. I am going to be doing kind of the same setup (Ls engine, Edelbrock dual plane carbed intake with Holley sniper efi, older msd 6010 spark control, comp 212/218 cam). The msd 6014/6012/6010(or Edelbrock equivalent) will control the LS spark....but the sniper needs to see a rpm signal. From the msd box, do we use the tach output from the msd to the yellow coil input(-) on the sniper? Or connect to the violet/green crank signal?

[@minhdang8165]

@@blackwidowprobe Hi, I'm doing the same set up. Were you able to find out if the box output will connect to yellow coil or to the voilet and green connector.

[@blackwidowprobe]

minh Dang I have not been able to find out yet....it is the middle of winter here, and everything is under 2 feet of snow....not ready to install the engine yet....but was just trying to figure everything out BEFORE I start the install... I like to know how to do stuff beforehand, rather than figure it out on the fly. But I think it is connected to the purple wire, and configured as a CD box in the setup wizard...not not 100% sure.

[@ethanwilliams6254]

I have the same setup. The purple wire plugs into the green/purple plug, and you run the purple wire to you tach output from the 6014 box

[@berkeleyhann4699]

Is very good information

[@roddavis1329]

I have a sniper bbd with a 6AL CD box and a Pro Billet 2 wire distributor that is set to factory settings. I show good power at the cd box with a blinking light when cranking. The engine immediately fires and then dies, I have used the tach adapter wire and eliminated the yellow tach wire. The display read stall before starting and while cranking, it never shows any rpm. Setup wizard did not show an option for timing controlled or non timing controlled, I am using non timing controlled. ??

[@HolleyPerformance]

give our tech department a call! 866-464-6553

[@SmokedTirez]

@@HolleyPerformance Can you supply me with a CARB number for the Sniper system if I call?

[@rhettgerner839]

Can you use msd 8582 with the sniper efi? I know its magnetic pick up just want to get the okay on it.

[@rhettgerner839]

I am locking the distributer out

[@kellyfaulkenbury1787]

There has to be a way to do this with a stock HEI or any other distributor. I shouldn't need to spend an extra 1000.00 dollars to do this. Maybe an old Mallory with the same three wire hook up. Seems like there is something simple they don't want to tell us so we spend money on non needed components.

[@HolleyPerformance]

You are correct, you do not need to purchase another distributor. Here are some examples of how to wire in an HEI or points style distributor straight from the Sniper EFI instruction manual! documents.holley.com/199r11031r.pdf Look at page 23 for non-timing control with a standard HEI distributor and CD box using the included purple ignition adapter wire. thxJ

[@samperras]

firstly hello from Australia, i have a msd8350 ready to run distributor with a three wire output, I also have a msd6425 6AL CD box and sniper master kit, i need a wiring diagram to run the timing control, i have all the parts but i am all so confused with the instructions, a simple wiring diagram would be appreciated thank you

[@samperras]

Thanks for no support Holley thumbs down 👎

[@Nextgeneration57]

Getting sniped by Holley

[@ignaciojrbautista5739]

Nuce

[@kellyfaulkenbury1787]

Key words , nothing wired from distributer to ecu

[@SpeedrunTnRC]

I flooded lol

[@madmikescustomDaily]

Wow