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Old 03-01-2018, 09:49 AM
jon@harrison.ne jon@harrison.ne is offline
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Join Date: May 2007
Cobra Make, Engine: JCF supplied the body,frame,and some of the driveline-I completed it to be a very accurate 289 slabside
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spdbrake, maybe I'm missing something but this is what I see: first, "with a 1.25" throw on the 3/4" master" is not relevant- the ratio of slave to master throw is the same for any input throw. Second, and more import, the slave to master throw ratio is a function of the area of the cylinders, not the diameters since the volume of fluid pumped equals the area times the throw and area is proportional to the diameter squared (area of a circle = pi x diameter squared/4). So a one inch throw on a 3/4" master driving a 1" slave will result in a 9/16 "(3/4 squared) throw at the slave, and a 1.25 " throw on a 3/4" master will produce a 0.703" throw on a 1" slave.
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