Does anyone know?
Electronic Ignition Conversion - Factory Datsun "matchbox"
Posted 07 August 2016 - 11:55 AM
If nothing wrong with the matchbox why?? If 'upgrade' what's the advantage?
little better spark, its not only the module, but a gm coil.
Posted 07 August 2016 - 02:30 PM
Posted 07 August 2016 - 03:29 PM
Hang on. The Red and Green wires are just a coil that the spinning reluctor induces a current in. This little signal is what tells the module to turn off so there is spark. It's not supposed to have 12 volts connected to it.
This might be a viable up grade but it has to work without damaging anything.
Posted 07 August 2016 - 08:40 PM
I'll wait. Wish you had a comparison of the matchbox spark. Damn.... these units are everywhere in the wrecking yards.
if i had the coil to wire up i would do the matchbox setup, ideally the remote electronic dizzy would be better. instead of having to gut a ignition module to wire it. Yeah the prw-2 ignition module and gm coil are easy to get a hold of
Posted 08 August 2016 - 05:55 AM
When comparing, or checking for spark in open air, you need to use a much larger gap, like cutting the ground electrode completely off the test plug.
The reason is because it takes a much stonger spark to jump (for refference) .040" under compression, than it does in open air.
The rule of thumb I have always went by is a minimum of .250" gap in open air.
On some really high compression applications, that needs to be even greater, or the engine will cut out durring full load with a standard plug gap.
The only way to get around that is to close the gap on the plug, or get a hotter ignition.
I campained a 125cc flat track bike in the mid '70s that had a 19:1 compression ratio.
The only way I could get it to run cleanly through the rpm range was to run a .016" plug gap.
Posted 08 August 2016 - 10:00 AM
Skip the module and connect directly to the Red and the Green coil wires.
the prw-2 ignition module does wire into the red and green wire, just used the old module to gut to run wiring through