1974 Brain Box saves the day.
Kind of went Dr Frankenstein yesterday testing all the different ecu's I have with different value ballast resistors. Now I have to make a spreadsheet for the results. Kind of interesting to do to me. Definately affects the heat generated and where they fail RPM wise.
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Excellent - Awesome setup !
I see in that top photo your running a factory Chrysler ECU #3874020 5 Pin
Is that a Standard UC12 Coil - 1.5 OHM ?
That’s why I was asking about different combinations and RPMs , as I have tested so many of these on my car with different results , and RPM breakdown from 4500 RPMs - 5500 RPMs etc.
Coils are the biggest issue , especially reliability on the street - I stay away from the Blaster 2 coils or anything with a lower resistance designed for CDI Ignition type systems
Accel - Pertronix - Edelbrock etc. all make so called Performance type oil filled canister coils with a Primary resistance of around 1.5 OHMs
Standard SMP has there UC12
Even those factory Chrysler ECUs seem to breakdown around 5000 - 5500 RPMs , but again that could be an result of these Chinese oil filled canister coils - Ballast Resistors vary from .5 to 1.5 OHM resistance that are available today
Like I mentioned earlier Mopar doesn’t make those .25 OHM resistors anymore along with there Mopar Performance ECUs or a made in the USA canister oil filled coil
Would like to see some of your results when you have a chance
Peace , thanx for your time
