kg/cm2. 1 Kg/cm2 isn't quite 1 bar but close.[/QUOTE]

1 bar = 14.5038 psi (pound-force per square inch)

kg/cm2 ? Kgf/cm2 is an SI unit which translates to kilograms force,

2.1 kgf/cm2 = 2.0594 bar

1 kgf/cm2 = 0.9807 bar

I guess that you were referring to absolute pressure, ie full vacuum = 0 bar and everything over that being positive? Most people run gauges that read mm/hg for vacuum and psi for positive pressure.

Welcome to Australia’s fully Metric system, would that be a 3” turbo back exhaust or 76.2mm. Whoever said that a pair of 38” DD’s is the same as a pair of 96.52 cm was a sad man.