Sniper-Hyperspark install

[andyf]

On my '65 Coronet I had to have the tank modified for the pump. Nobody was selling a drop in unit back in those days.

 

[MoparForester]

Looks good. I've been running a Sniper/Hyperspark setup on my Coronet for a while now. I used a Holley port injection setup on my Duster though.
View attachment 947202 View attachment 947204

Can the factory tach still be used with the hyperspark setup? I just installed the sniper and hyperspark but the dark brown wire to my tach is not working it. I'd still like to run the stock tach on my 73 Charger. Something I'm missing or do I need some sort of adapter?

 

[72RoadrunnerGTX]

The original tach boards will not register from these newer ignition systems. I’m running an MSD with my Hyperspark using the dedicated tach lead. The factory tach, with the original board, stopped working when the MSD went in. Same lead does work with test equipment tachs. I have an RT engineering tach board ordered.
Another option would be https://www.holley.com/products/accessories/gauges_and_gauge_accessories/tach_adapters/parts/8920

 

[MoparForester]

Other problem I've have is the kickdown linkage. Adjusted it best we can but doesn't work. What are most folks using for the 727 and Sniper setup?

 

[72RoadrunnerGTX]

https://www.bouchillonperformance.com/inc/sdetail/589 , is pictured above.

 

[MoparForester]

https://www.bouchillonperformance.com/inc/sdetail/589 , is pictured above.

Did you change or upgrade your alternator for increased demand? Your pictures are extremely helpful to me. Our 73 is 400 auto car. I hope to have first drive tomorrow with new Sniper/Hyperspark setup. I just will need to work out the kickdown linkage and eventually address the tach problem. Thanks for sharing your experience.

 

[72RoadrunnerGTX]

Currently running a Tuff Stuff 130amp alt. with appropriate wiring upgrades. This car was put together that way, not necessary just because of the EFI conversion. If interested on specifics, check the electrical section, many threads on that subject over the years there I’ve participated in that will contain many details.