However, in markets accustomed to cubic inches, the actual displacement measurements of an engine are still given by many manufacturers in these units, usually along with metric value; e . g . the 6.1-litre Hemi's published displacement is 370.0 CID / 6, 059 cc.
12.
The Sigma MC74 powered by a Mazda 12A engine was the first engine and only team from outside Western Europe or the United States to finish the entire 24 hours of the 24 Hours of Le Mans 787B ( actual displacement, rated by FIA formula at ).
13.
Since taxable horsepower was computed based on bore and number of cylinders, not based on actual displacement, it gave rise to engines with'undersquare'dimensions ( bore smaller than stroke ) this tended to impose an artificially low limit on rotational speed ( rpm ), hampering the potential power output and efficiency of the engine.
