Stock dizzy + Coil on Plug = twin plug option?

[kenikh]

Is it feasible to distribute a low voltage trigger signal through the stock distributor to a coil-on-plug igniter to generate a spark for twin (or single) plugs?

Here's how I imagine it would work:

• A low voltage power source (matched to your CoP pack specs, usually +12v or +24v, would be wired into the dizzy where the coil normally plugs in.
• The dizzy spins as usual, but instad of a high voltage output meant to drive a sparkplug, low voltage is supplied through the dizzy to the CoP unit via the distributor button.
• The low voltage signals from the dizzy are split, respective to each cylinder and wired into the matching pairs of CoP units.
• The CoP units, which are powered independently just like a normal coil, pick up the low voltage signal and fire the twin plugs in each cylinder ,in unison.

This doesn't seem off base. Nuts? Genius? Somewhere in between?

You could use an integral advance or phased advance mechanism pretty easily with this setup. The only thing that changes is where the high voltage current is generated.

I want to try this!

[James Brown]

you think that would work but, there is no direct connection in the dissy cap and the rotor so low voltage won't bridge the gap. And, the signal to the COP just needs a millisecond signal, not a long (in degrees) signal that a dissy does. You could use the dissy to trigger a box that sends a signal to the COP's. many units out there try MegaJolt.com

[kenikh]

MegaSquirt? Yea, I knew I could do that, but wanted to keep it "simple". Very good point on low voltage not bridging the connection.