Re: Overdrive Setup for Racing

[Larry Young <cartravel@pobox.com>]

Oops, always have a problem with those decimal points!  That means a 10 lb
increase, 25 to 35 lbs (5 lb spring plus 450 to 650 psi).

Randall Young wrote:

> > The hole in the seat for the operating valve is 1/4 inch
> > diameter, so the force
> > exerted by 650 psi of pressure is about 3 lbs.
>
> Larry, I think your math is a bit off here.  .25" diameter = .125" radius =
> roughly .05 square inches.  .05 * 650 ~= 30 pounds, not 3 pounds.
>
> Randall