Autometer tachs 3700 and 3780 which?! [Archive] - Chevelle Tech

: Autometer tachs 3700 and 3780 which?!


feedphillipnow
Nov 5th, 03, 3:22 AM
Hey guys, is there any big difference between these 2 tachs other than 8000RPM and 10,000RPM? The wiring and power rating hook ups are all the same right? The 10k is a few bucks cheaper and I like the smaller numbers, thats important to me graemlins/beers.gif

gUmBaLL68Malibu
Nov 5th, 03, 1:54 PM
The wiring should all be the same, the tach just goes up higher smile.gif . Its got a ignition wire, one to tach output on MSD box or on distributor, or coil. Then the positive & negative for the light bulb.