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The answer seems to be that if you measure the system current using your coil and it does not exceed 4 amps you're good to go with your present coil. Go to web page click on Support then Technical questions, it will explain how to properly measure system current from the coil.

Frazier
 
In the above post I assumed that we were still talking about using a Lucas Sport coil and the Pertronix ignition. When I said "you're good to go" I meant your coil will be compatible with the Pertronix. I'm still running the Pertronix ignition with my Lucas Sport coil and have had no problems since installing in August '02.
 
Sorry, I haven't checked back to this post in a while(I forget about the MG board!!)
I've been using the Lucas coil with my Pertronix for two summers now. Seems to be fine.

Ron
 
Hey, any of you guy use an old Allison ignition? It's the predecssor to the Crane. I have the Allison set up from years ago minus the shutter if anyone wants it for a spare. I'll will never use it because I have no shutter, just the sensorm wiring and original instructions from about 1975. Could buy a new shutter/mount kit from crane, just don't have the desire
 
Me too Chuck!! I just can't believe that out of 1600 people, nobody knows!! I guess it's back to you and me buddy!!
wink.gif
 
I have had great results with a number of Petronix and have never had one fail. I have had essentially the same results with the crane kit. I also have not noticed any sensitivity to the coil type with Petronix. However, as a matter of course I usually switch the external resistor coils such as Lucas to a built-in internal resistor type. NAPA stocks these 12 volt negative ground units with a price of under $50. The built in rersistance assures that the Petronix will not be over loaded if left on in a non operating mode.
The external resistance should not be required with a no point system as its main purpose is to protect the points from current during stationary but ignition-on configuration if the points should be closed. Unless the car being converted to a solid state ignition has practically new coil and spark plug wire set, I think a renewal of these conponenets makes sense to take advantage of the solid state performance advantages.
 
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