It has been my experience that aas you reduce the line orifice to the rear
sylinders you actually increase the TIME it takes for the cylinders to
activate fully thus you have more front brake, the pressure is the same once
the cylinders are activated. ----- Original Message -----
From: "Aaron Johnson" <fpspitfire37@msn.com>
To: <fot@autox.team.net>
Sent: Saturday, August 09, 2003 9:42 AM
Subject: Re: brake bias suggestions
> Joe,
>
> If you are using the standard dual piston master cylinder you can INCREASE
> rear bias by going to a stiffer spring between the forward piston and the
rear
> spring. We had to do this on my TR6 to get more rear bias without going
to a
> dual cylinder. However if you are using the single piston early master
> cylinder Henry is right, you cannot add rear brake, only remove front.
The
> effect may be the same in the end, but you will significantly increase
pedal
> pressure by adding the valve on the front brakes.
>
> Aaron Johnson
> #38 F-Prod Spit MkIV Oregon Region SCCA
> http://www.geocities.com/spitracer9
>
>
>
> ----- Original Message -----
> From: Henry Frye
> To: fot@autox.team.net
> Sent: Saturday, August 09, 2003 8:55 AM
> Subject: Re: brake bias suggestions
>
>
> I assume you are using a dual circuit master brake cylinder. Obviously,
no
> adjustment here.
>
> You could convert to a dual master cylinder setup. Maximum adjustability
> using a bias bar. Spend your cash once, can play with brake bias until
the
> cows come home.
>
> You could install a proportioning valve in the brake lines. You will not
be
> able to ADD any rear bias, but I assume you could put the valve on the
> FRONT brake circuit and crank that down a bit. I don't know if I would
go
> that route.
>
> That leaves playing with the size of the rear wheel cylinders, using a
> better brake lining on the shoes, increasing the size of the drums, or
> converting to rear disk.
>
> What did I miss???
>
> At 08:26 AM 08/09/2003 -0700, Joe <C> wrote:
> >I have GT6 brakes on Tiny Tim (all around) and would like to be able to
> >adjust brake bias. So I am looking for suggestions to add some sort of
> >regulator onto the lines to accomplish this. Right now I am thinking
> >that I want to increase the rear bias.
|