Autogauge Meters

[R31 POWER]

My autometer boost gauge sits on 1.5 psi farken when the motor is off.

[CruiseLiner]

My autometer boost gauge sits on 1.5 psi farken when the motor is off.

you shouldnt have dropped it then

[WazR32GTSt]

Also, I'm of the opinion that air pressure gauges (tyre, manifold etc) should NOT have a zero mark or stop on them for obvious reasons.

Adrian

why not?

if there's no zero then there's no reference...

[foznice]

Yeah, 2rismo, I think you'll find that the pressure reading on the gauge (gauge pressure) is different to the actual air pressure in the tyre/manifold (absoloute pressure)..... The gauge pressure = absoloute pressure - atmospheric pressure, so that as Warren stated you can understand the difference in pressure.

So if a tyre pressure gauge reads zero, the pressure in the tyre isn't zero, it's just atmospheric pressure.

[WazR32GTSt]

i think 2rismo means that cities have a different barometric pressure depending on their height above sea level, thus showing zero boost at a high altitude will in fact be a manifold pressure above the atmospheric pressure at that location

but the difference will be minimal and most of us live in cities at sea level, so who really cares?