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bias valve
dilley - 15/6/06 at 07:32 AM

I currently have a sierra bias valve fitted, Im running a standard sierra master cylinder, does the master cylinder distribute the front and rear braking to iirc 80/20 or there abouts, if this is the case surely I dont need an adjustable bias valve, I have also had trouble with the back brakes sticking on which I have put down to the bias valve.

Hellfire - 15/6/06 at 08:19 AM

From what I've read, a Sierra Master Cylinder isn't up to the job due to small bore size... unless you're also using the Servo. (WHICH HAS SINCE BEEN RENDERED INCORRECT)

If you're building a BEC, the bias valve need not be used. Bias isn't used on most BEC 7 type cars (due to light weight) unless you're thinking of serious tracking or racing in which case you'll need that adjustability.

Steve

[Edited on 15-6-06 by Hellfire]

andyharding - 15/6/06 at 10:02 AM

quote:
Originally posted by Hellfire
From what I've read, a Sierra Master Cylinder isn't up to the job due to small bore size... unless you're also using the Servo.
[Edited on 15-6-06 by Hellfire]


Not true. I'm using a standard Sierra MC with rear drums and no bias valve or servo.

Passed the SVA first time with no problems and the brakes are fantastic. If I really brake hard I can lock all 4 wheel but never the rears before the front.

dilley - 15/6/06 at 10:55 AM

Im running willwoods on the front with discs on rear, the brakes seem to work well with the standard master cylinder, what other options are there?