Viv and all
I forgot to point out in my initial reply that the formula given in
Blower's Manual (page 434 in my copy) combines the volume of the combustion
chamber (35.1cc) with the gasket (4.4cc) in the denominator (40.5). So if
you are undertaking your own calculations, any change in these parameters
must be reflected in the total in the denominator as well as the individual
numbers in the numerator.
Must keep your engineering calculations correct or you will end up with a
disaster. More than one space mission was lost over simple mistakes like
that.
Pete Thelander
pthelander@earthlink.net
> [Original Message]
> From: <viv@trax.co.za>
> To: <mg-mmm@autox.team.net>
> Date: 5/16/2006 4:56:41 AM
> Subject: PA Cylinder Head
>
> Can someone tell me the standard measurement of an unskimmed
> head?
>
> Is it usual to take a bit off to allow for modern day fuels? If so, how
> much is normal and what CR should this give?
>
> Thank you.
>
> Viv
>
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