[Roadsters] Brakes Phil Erickson

[Paul Kort]

  I've crewed for three roadsters, two 1600s in SCCA G PROD and one 2000
racing the vintage circuit.  All ran with stock brakes, but with racing
pads up front.  They all seemed to stop just fine!

Paul
Ohio

On Tue, Sep 8, 2015 at 12:14 AM, Gary and Cindy Ault via Datsun-roadsters <
datsun-roadsters at autox.team.net> wrote:

> I have found that stock roadster brakes, properly set up and adjusted,
> work just fine in non-racing applications.  I have both early (1966) and
> later (1967-1/2) cars.  I have had the '66 1600 with a U20 motor in it for
> over 40 years.
>
> Gary
>
> ------------------------------
> *From:* philip erickson via Datsun-roadsters <
> datsun-roadsters at autox.team.net>
> *To:* "datsun-roadsters at autox.team.net" <datsun-roadsters at autox.team.net>
> *Sent:* Tuesday, September 1, 2015 10:39 PM
> *Subject:* [Roadsters] Brakes Phil Erickson
>
> I tried to send this, but from the wrong email.....so I think it got cut.
>
> It's very difficult to guess on the braking response of a wheel cylinder
> size change on a disc / drum set-up.
> The response / braking torque to pressure is Linear with disc brakes and
> squared or even cubed with drum brakes.  Best to use a proportioning valve
> on the rear to limit braking torque.
> A proportioning valve is miss named as it changes the pressure response to
> pedal travel - which flattens the torque response of the drum brake.
>
> Phil
>
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