But involves more modifications to the car.
I know one option is to convert to negative ground - actually that has
already been done but firstly the time clock does not work and I'm stuck with it
as it is part of the rev counter,
What other modifications are there being he says his car has already been converted to a negative ground system? The few old style clocks I have seen in vehicles have one wire feeding them power and a common return going to some part of the instrument panel frame or existing wiring harness Assembly so to put the little DC - DC polarity inverter power pack in that clock line is not going to be much of a modification and is certainly far less that reconverting the whole vehicle back to positive ground just because the clock doesn't work.
If he is really a purist about keeping things looking stock then he can just change the battery cable colors around so the red one goes to the frame and black one goes to the starter system. At first glance very few super nosy purists would even catch that the battery poles do not actually match with the cable colors!
Last edited: