Brake bias!

[craig]

I know brake bias valves are a no no for sva but are balance bars classed as the same?

Craig

[Ric H]

As I understand it, both are allowed for sva, as long as they are not readily adjustable. E.g drilling and split-pinning the adjuster, or mounting the adjuster behind a cover of some sort (needing tools to remove it strictly speaking I would think). That's my interpretation - not that I've tested it as I currently have neither!
Richard

[SDMC001]

Craig

I cannot find the detail, but I belive that if fitted, it must still allow the permitted required brake function to meet the SVA when adjusted fully both ways..

I must say after doing some 450 miles now, I do feel some reduction the front brake effeciency would be of benifit.

Steve

[alackofspeed]

Or improvement of the rear brake efficiency?

It seems sensible to me, to make the bulk adjustment by getting the natural front / rear balance near to target, then fine tune with adjusters.

Any of the standard setups (280 f / 260 r, or 260 f / 240 r) being as they designed for a FWD car, I can't see are a good base. My slightly dubious car-park-poll of production mid-engined cars has found most have near identically sized disc, but with a larger pad area on the front, and larger calipers on the front.

As for SVA approval, both Steve and Rich's views seem fairly logical, but from what I recall in an earlier thread, nobody knew the answer (assuming it is concrete, and not open to regional interpretation).