The sending unit on my Autometer mech gauge finaly broke after a few engine pulls. I'm thinking about going back with an electric gauge to avoid this problem later. How do the electric Autometers compare to the mech. gauges?

Marty,

I can't really offer a comparison but I've been running an electric Autometer (Sport Comp) water gauge in my Chevelle for over 5 years now with neary a problem. As far as I know it's accurate.

Autometer is quality, I'm sure they are accurate. I just compared a 19 year old Auto Meter Sport Comp Monster Tach that I bought new and have been using ever since, a brand new Auto Meter 3 3/4 Sport Comp Tach and a new Summit tach. 2 connected at a time.

At idle both Auto Meter's were the same, summit was 200 rpm high. At 5000 rpm the smaller new Auto was approx 50 rpm higher than the old one and the Summit tach was 500 rpm's lower than that.

Summit tach was made in taiwan sp?, it was sent back. All these tachs are electric.

With Autometer gauges, accuracy is pretty much a given. The big disadvantage to electrical sending units was the sweep of the pointer. Until fairly recently, electric-driven gauges had a 90 degree range of motion for the indicator, while mechanical gauges were more on the order of 270 degrees.

Autometer is selling wide-sweep electric gauges but I don't know how they compare price-wise to the traditional electrics, or mechanical gauges.

Thanks for the info.