Elec vs Mech Speedo

[Jeremy]

I am looking at going with a Covan's dash for my TA and was wondering if there was an electric speedo had a huge advantage over a mechanical?

I am going with Autometer's and like the Z series best at this time but have not made a final choice and an electric speedo is not an option.

While we are talking gauges, why do vaccuum gauges rotate counterclockwise? This seems real backwards to me.

[Takid455]

vacuum gauges are nothing more than pressure gauges. when there is vacuum the gauge rotates CCW b/c there is less pressure. Under boost or acceleration the gauge rotates CW b/c there is less vacuum in the engine.

the only benfit I see in electrical speedo is possibly a more accurate reading and teh benefit (for some manufs) to calibrate them easily. If you have VSS in your tranny good, but if you are running a cable to an electrical speedo, why bother. Redline gauges will convert your stock T/A speedo to elec if you are interested. 250-3 for speedo and about 500 for tach and speedo.