Page:
Home > Technical Chat > Brake bias

Pottsy

User Avatar

460 Posts
Member #: 843
Senior Member

Stoke-on-Trent. Duck.

Hi all,

I've been a good lad and done a search already to see if I can find an answer but no joy, so here goes.

I need to rebuild the brakes and this will include a new bias valve rather than the awful lump of iron I did have mounted to the inner wing . Applying a bit of common sense and engineering, if I didn't put a bias valve in (OK, that bit wouldn't be using common sense!), but with no bias valve and using a twin master cylinder set-up(http://www.minisport.com/acatalog/info_GMC227.html) I would get a front/back brake percentage of perhaps 60/40? (Metro turbo vented discs up front, Superfins at the back). The 60/40 numbers are a bit of a guess, but the principle that follows is the same...

With an "infinite" range bias valve I could then achieve anywhere from 60/40 to 100/0?

With this valve (http://cgi.ebay.co.uk/Adjustable-Brake-Bia...34.c0.m14.l1262) which reduces pressure by a "maximum of 60%", am I right in saying I can then go from 60/40 to 84/16? (i.e. reducing the rear percentage by 60%?)

Which leaves me with 2 questions (assuming my logic is right...)
- Is an adjustment range of 60/40 to 84/16 sufficient? (My Mini's not been on some extreme diet or anything, please assume it's "standard").
- Is the bias valve above suitable? I came across it via another thread (http://www.turbominis.co.uk/forums/index.php?p=vt&tid=285827) or would people recommend something else? The "lever" types look prettier, but this is brakes we're talking about, so I'm applying function over form for a change!

Many thanks,

Dave.


wil_h

User Avatar

9258 Posts
Member #: 123
Post Whore

Betwix Harrogate and York

That is essentially the setup I have. Works fine.

Short answer really.

Fastest 998 mini in the world? 13.05 1/4 mile 106mph

www.twin-turbo.co.uk

On 2nd Jan, 2013 fastcarl said:

the design shows a distinct lack of imagination,
talk about starting off with a clean sheet of paper, then not bothering to fucking draw on it,lol

On 20th Apr, 2012 Paul S said:
I'm mainly concerned about swirl in the runners caused by the tangential entry.


Pottsy

User Avatar

460 Posts
Member #: 843
Senior Member

Stoke-on-Trent. Duck.

Nice, I like short answers. Especially those that suggest I've got the right idea!

Cheers Wil, if it's good enough for you it definitely good enough for me. (there's a song there somewhere...)

Home > Technical Chat > Brake bias
Users viewing this thread: none. (+ 1 Guests)  
To post messages you must be logged in!
Username: Password:
Page: