Join Date: Mar 2002
Location: Austin, TX, USA
Re: Mechanical vs Electric gauges
Randy raises a good point about mechanical gauges. They tend to have a longer sweep. However, there are mechanical gauges that are long-sweep types.
In terms of accuracy, I don't think you could conclude that mechanical is more or less accurate than electrical gauges are. Some electrical gauges have a calibration pot located inside the bulb socket on the back.
IMHO, electrical gauges are hard to beat in terms of hookup and reliability. I've experienced the bedredded leaking oil line to the oil pressure gauge. Mechanical temp gauges have that knarly flexible line that you have to fish through the firewall and secure without a kink. Electrical gauges solve a lot of those headaches, though full sweep gauges would be nice to have.
68 Coupe, 350 w/ Edelbrock Performer RPM heads, cam, intake, 700R4, Dave's small body HEI