Dick;
It helps.
Due to aerodynamic loads varying with speed, you'll need to experiment
to find proportion settings that are optimum for your speed ranges.
In other words, if your car has lots of downforce at the front end at
speed, you'll need more brake force at the front than on the rear; as
the car slows down, it will need an increased proportion of brake
pressure on the rear. This is the procedure for maximum "G" stopping.
Since LSR venues typically have long runoff areas, generating maximum
stopping power isn't a top priority but keeping the car straight and
stable definitely is. Try braking hard at around 80mph and then adjust
the proportioning valve to let the front tires start to lock up before
the rears. You'll probably need to have an outside observer watch your
wheels to see what is happening.
Regards, Neil Tucson, AZ
-----Original Message-----
From: owner-land-speed@autox.team.net
[mailto:owner-land-speed@autox.team.net] On Behalf Of Dick J
Sent: Friday, June 25, 2004 2:44 PM
To: land-speed@autox.team.net
Subject: Brake Proportioning Valve
Is a proportioning valve necessary on an LSR car that has discs front
and drums rear?
Dick J
In East Texas
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