On my Import ZX My boost gauge is –7 to +7 mmHG or something.

What is this in PSI and are the standard gauges any good?

 

Thanks Chaps

 

Richie…..

 

P.S. does the pic below show?

 

 

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[This message has been edited by richie300zx (edited 21-02-2002).]

roughly -14 to 14psi..

 

And no.. they are generally pants, innacurate, hard to read, and not even a reliable indicator of being in safety boost or not..

 

And no.. it doesn't..

Richie,

 

the readings (really -700 and +700) correspond to -14 to +14 psi on UK spec cars. the mmHG is millimeters of Mercury, i.e. the height of a mercury column held in a vacuum that the pressure will support; it's an old unit derived from one of the earlier ways of measuring pressure.

 

as for the accuracy of the standard gauges; read around these forums and you'll see they're generally regarded as giving an impression only - i.e, shite.