To go from pounds per square centimeter to pounds per square inch...
35lbs/cm*2 x 2.54cm/1in x 2.54cm/1in = 35lbs/cm*2 x 6.4516cm*2/1in*2 =
225.806lbs/cm*2
The standard conversion is 2.54 cm per inch, therefore one square inch
= 6.4516cm*2 to four decimal places accuracy.
No need to convert to KiloPascals, Pascals(Bars), Hectopascals,
Millibars or any other pressure units. SAE compression standards are
in pounds per square inch.
Since your values appear to be way high, I would guess that it is not
a problem with your compression test gauge not fitting properly in the
spark plug hole. Most likely, as you suggest, your gauge is badly out
of calibration.
Cheers!!
Jim - who spent the past 41 years working in units of pressure (yeech!!)
On 11/25/06, Phil Nase <nase@ptd.net> wrote:
> Definitely lbs/ sq cm and Kg/sq cm on the dial.
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