Sniper tach

[Loulang]

Does anybody know how to get my tech on my dash to work with the sniper system it worked before I installed the hyper spark and sniper coil. But upon installation of those two wiring is different now. Thanks in advance

 

[Don Frelier]

Did you connect the Dark Brown wire from the Sniper 10 pin connector to the Gray Trace wire which would normally go to the coil from the tach sending unit?
It should work if you do that.

 

[Loulang]

Nope I didn’t will try that when I get home thanks.

 

[pnora]

And it might not work at all without a tach signal modification. I would call Holley for their advice if for sure you have it wired correctly. Many systems that are digital do not like the analog systems.

 

[Loulang]

My handheld works but my dash isn’t hooked up so that’s why I put it in the 66-67 forum to see what someone else did when they installed this system.

 

[Don Frelier]

My handheld works but my dash isn’t hooked up so that’s why I put it in the 66-67 forum to see what someone else did when they installed this system.

I just looked at the install manual for the sniper (so no guarantees...)

 

[BeepBeepRR]

You will more than likely need a MSD tach adapter. I had to have one for the road runner because with the sniper alone it was showing 4000 rpm. tach adapter corrected it.

MSD Ignition 8920 MSD Magnetic Pickup Tach Adapters | Summit Racing

Free Shipping - MSD Magnetic Pickup Tach Adapters with qualifying orders of $109. Shop Tachometer Adapters at Summit Racing.

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The old school tach is analog and the Sniper I think uses square wave signal. So it wont read correct. Like I said it was showing 4k on the factory tach before I put the MSD in line.

 

[Loulang]

Ok thanks

 

[Don Frelier]

You will more than likely need a MSD tach adapter. I had to have one for the road runner because with the sniper alone it was showing 4000 rpm. tach adapter corrected it.

http://[URL]https://www.summitracing.com/parts/msd-8920?seid=srese2

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The old school tach is analog and the Sniper I think uses square wave signal. So it wont read correct. Like I said it was showing 4k on the factory tach before I put the MSD in line.

View attachment 1617168

The 66 has a one year amplifier board that drives the tachometer.
It may work with the square wave signal.
No harm in trying it.

 

[Loulang]

Yeah I’m gonna touch the wires and see

 

[Loulang]

I will let y’all know

 

[Don Frelier]

Just to be clear - THE GRAY TRACE WIRE SHOULD GO ONLY TO THE SNIPER NO LONGER ATTACHED TO THE COIL.
Sorry should have mentioned that.

 

[Loulang]

Yes I know I have the sniper coil so it has its own plug

 

[RedBeard]

 

[Don Frelier]

Yes I know I have the sniper coil so it has its own plug

WHEW that's a relief

 

[Loulang]

WHEW that's a relief

Ya seeing how I already had one lil melt down with alternator wire lol