I've got a G-Tech RR.
I've been having trouble getting accurate RPM readings from my 2 Bonnevilles.
I'm guessing it is because of all the electronic gizmos in the cars.
I tested the GTech on my friends Neon and the rpms worked fine.
I emailed tech support about what would be better a direct feed off the battery or the alternator.... they suggested I try both. (They weren't very helpful)
My question is, isn't the power coming off the alternator different from the battery? .....now if I connect a 12v cig lighter socket to wires coming directly off the alternator and plug in my gtech to that.... could it cause damage?
What have you guys found to get the best readings... battery or alternator?
*SOLD* - Turbocharged - 1991 Bonneville SSE
*SOLD* - Supercharged - 1997 Bonneville SSEi