Re: Boost/vacuum numbers...

[STEADIRIC@aol.com]

>  Hmmmmm, I typically see 20in/hg crusing, Down to 6.5in/hg closed throttle 
>   decel. and up to 68in/hg on full boost.  This is all with a Aircraft 
>   STC'd Sensitive Manifold pressure gauge.  Meaning that it's spot on.
>
>Just to make sure we're talking the same units:
>
>  decel:   20-25InHg "vacuum" re atmospheric ==~ 5 - 7InHg "absolute";
>  cruise:  10InHg "vacuum" re atmospheric ==~ 22InHg "absolute";
>  accel:   10PSI "boost" re atmospheric ==~ 54InHg "absolute".
>
>So we're "spot on" with each other, yes?

Yes my gauge as are all aircraft gauges Absolute reading.  10psi boost 
though is 49.116in/hg absolute


Later!

Eric Fletcher
'87 5KCSTQIA2RSR2B

STEADI RIC@aol.com