Subject: Re: con rods
Author: Patrick Hayes
Date: Sep 15, 2004, 8:18 PM
Post ID: 1717537187
Guy Winton wrote:
| Anyway, I don't understand somebody's comment: "You think it would have been cheaper to just change the rods rather than the crank and pistons". |
Good point. You can increase the compression ratio by using longer
rods, but you can't change the displacement. Displacement is a
volumetric computation of bore and stroke. Wouldn't matter if you used
cylinders and rods that were three feet long. The only way to increase
stroke is to move the crankshaft pin. If that puts the piston into the
head, then you need to use a shorter rod or relocate the wristpin
relative to the piston crown.
Patrick Hayes
Fremont CA