Changing ignition

Gotta love that wiring . . .
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mgbgtn

Changing ignition

Post by mgbgtn »

I want to chage my dual point dist in my 73 for one from my 79 parts car but I need to know what size resistor I need to reduce the voltage so I don't burn out my tach. The original coil has a built in resistor for the points and the tach gets it's power after the coil but the electronic ignition coil does'nt have one. :?:
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divace73
Posts: 1380
Joined: Sun Oct 17, 2010 5:59 am
Your car is a: 1980 Fiat 124 Spider Silver
Location: Sydney, Australia

Re: Changing ignition

Post by divace73 »

from my understanding the resistor was a balast resistor so the coil wouldn't burn out??

If you use a later electronic unit, just run your tacho lead to the -ve side of the coil, just ensure the coil aluminium housing is properly grounded
Cheers David
-=1980 silver Fiat 124 Spider=-
If you want to see pics of my car (and other random stuff) >>click here<< OR
see my >>You tube channel<<
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