DeTomaso Mailing List: February 00, Message #118

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From: GRR456@aol.com
Subject:Re: Prop valve Location
Date: Sat, 5 Feb 2000 11:34:43 -0500


In a message dated 2/5/2000 8:10:13 AM Eastern Standard Time, 
MikeLDrew@aol.com writes:

<< Race cars are set up this way, normally using a prop valve that consists 
of a 
 detented lever.  Each detent changes the ratio X percent so the driver can 
do 
 it by feel, easily, while on the fly. >>

Well, actually, since most have a dual  master cylinder set-up, with screw 
threads to acheive the balance, you will have a knob, or a crank handle, that 
you rotate to change the balance. The total number of turns is 12-15, and you 
set it up with about 6 - 8 off of full front. typically during a 100 lap 
race, you'll change the brake bias about 2 to 3 turns, as the car set-up 
changes.

The dedent type is to reduce the the pressure to the front or rear. Some guys 
have a dedent type to change the pressure between the right and left front 
brakes. You reduce the pressure to the right front brake to get the car to 
turn better initally into the corner.

Regards......Gary


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