Combustion chamber volume (and valve relief pockets in piston tops, if
applicable) come into play when calculating compression ratio.
- Bob Mann, '69 2000 Solex
Thomas Walter wrote:
>
> Swept volume.
>
> So figure the area (d/2^2 * PI)
> times the stroke.
>
> That is the volume for one cylinder.
>
> Since the roadster is a has an 87.2mm bore,
> and a 83mm stroke.
>
> Area = (d/2)^2 * PI
> = 87.4/2 ^2 * 3.1415
> = 7638/4 * 3.1415
> = 6005 mm*mm
>
> Stroke = 83mm
>
> So per cylinder = 6005 * 83 mm*mm*mm
> = 498495 cubic millimeters
> = 498 cc
>
> Note the measurements go from mm to cc (cubic centimeter).
> cc is the common factory, but to go from mm to cm is a factor of
> 10, or in the case of mm*mm*mm to cm*cm*cm (a factor of 10 * 10 * 10).
>
> Anyway from the above give us just about 2000cc for a four cylinder
> engine, so those darn bore and stroke measurements should be correct.
>
> snyler wrote:
>
> > Just curious, how is displacement of an engine calculated? Simply bore
> > and stroke and number of cylinders? Are combustion chambers factored in?
> >
> > -Marc T.
> >
> >
> > ==========================================================================
> > Marc Tyler TDROC Sisterdale TX
> > 1970 1600 #SPL311-31016
> > 1965 L-320 #L320 013642
> > http://datsun_marc.tripod.com/cgi-bin/datsun_homepage.html
> >
> > ///
> > /// datsun-roadsters@autox.team.net mailing list
> > /// Send admin requests to majordomo@autox.team.net or go to
> > /// http://www.team.net/cgi-bin/majorcool
> > /// Send list postings to datsun-roadsters@autox.team.net
> > ///
>
> ///
> /// datsun-roadsters@autox.team.net mailing list
> /// Send admin requests to majordomo@autox.team.net or go to
> /// http://www.team.net/cgi-bin/majorcool
> /// Send list postings to datsun-roadsters@autox.team.net
> ///
--
- R.W. Mann & Company, Inc. >> Airline Industry Analysis
Port Washington, NY 11050 >> tel 516-944-0900, fax -7280
mailto:RWM@RWMann.com >> URL http://www.RWMann.com/
///
/// datsun-roadsters@autox.team.net mailing list
///
|