But Larry, he is calculating swept volume.
The volume of the combustion chamber, dished pistons and gasket
thickness etc, will effect CR but not swept volume; shouldn't make any
difference should it?
----- Original Message -----
From "Larry Macy" <macy at bblmail.psycha.upenn.edu>
To: "Toby Atwater" <Toby@intri-plex.com>; "Spridgets@Autox. Team. Net
(E-mail)" <spridgets@autox.team.net>
Sent: 11 November 2000 04:18
Subject: Re: British Pie!
> You are also assuming that the head is exactly flat across the top
of the
> cylinder.
>
> It ain't.
>
> Larry
>
> >>>>On 11/10/00 8:39 PM so and so (Toby Atwater) said. (And I
quote:)
>
> >Hey, Im tripping over here.
> >
> >>From Haynes & Workshop manual:
> >"
> >Bore 70.61mm
> >Stroke 81.28mm
> >Capacity: 1274.8 cc
> >"
> >everytime I calculate it I get 1273.1 ccs.
> >
> >Are the british using some kind of different Pi? (3.14159265358979)
> >
> >(Bore/2)squared X PI X stroke X 4 = displacement right?
> >
> >
> >(70.61/2)=35.305
> >35.305 squared = 1246.443025
> >1246.443025 X PI = 3915.81625
> >3915.81625 X 82.28 = 318277.5448372
> >318277.5448372 X 4 = 1273110.17934
> >1273110.17934 /1000 (convert to cc) = 1273.1101793 !!!
> >
> >Dude... what am I doing wrong? am I incorrect in asuming that all 4
cly are
> >the same? or what?
> >
> >Thanks
> >
> >Toby
> >
> >trying to calculate his CR.
>
>
> Larry Macy
> 78 Midget
>
> Keep your top down and your chin up.
>
> Larry B. Macy, Ph.D.
> macy@bblmail.psycha.upenn.edu
> System Manager/Administrator
> Neuropsychiatry Section
> Department of Psychiatry
> University of Pennsylvania
> 3400 Spruce St. - 10 Gates
> Philadelphia, PA 19104
>
> Ask a question and you're a fool for three minutes; do not ask a
> question and you're a fool for the rest of your life.
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