sammy
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| posted on 2/12/07 at 07:09 PM |
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Single or twin brake master cylinder?
I am making my own floor-mounted pedal box, and am wondering whether to use a single (combination) master cylinder or twin master cylinders with a
bias bar for the brakes.
Is there any real advantage on a road car to having twin master cylinders? I have sierra drum rear and cortina front calipers so braking isn't
going to be great anyway!
Cheers
Build diaries...
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Mr Whippy
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| posted on 2/12/07 at 07:34 PM |
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I got the twin bias’s bar jobby and to be honest I would never ever get another. Just a total caper to adjust and rather crude contraption. I'd
much prefer a normal dual master cylinder with a bias valve for the rear instead. Also alot cheaper in the end.
You might just get away with no bias adjustment seeing your using drums at the back anyway. If I were you I'll just wait till you try it out and
if it locks at the back just install the valve. I think you can get better pads for the front, green pads comes to mind but the brakes will be fine
for such a light car.
[Edited on 2/12/07 by Mr Whippy]
Fame is when your old car is plastered all over the internet
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sammy
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| posted on 2/12/07 at 07:40 PM |
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Thanks for that Mr Whippy it's kind of what I was thinking, the bias bars look a bit fiddly although I must admit I've only seen pictures.
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DavidM
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| posted on 2/12/07 at 07:41 PM |
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I'm using an Escort non servo master cylinder with Cortina discs at the front and Escort drums at the rear. It's fine for road use. I
think you'd be suprised how good the set up is in a car as light as a Locost.
David
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Werner Van Loock
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| posted on 2/12/07 at 07:49 PM |
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If you intend to keep the drums, use single master cylinder, the dual setup has no advantage and more possibility on problems and a possible sva fail
if not done right, ie locking the adjusting mechanism and making sure balance is right.
http://www.clubstylus.be
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britishtrident
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| posted on 2/12/07 at 07:52 PM |
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A balance bar system is just a temptation to twiddle -- potentially very dangerous for road use.
For track use it is a diffeent mater they are far from crude and give very fine adjustment of front to rear balance.
[I] “ What use our work, Bennet, if we cannot care for those we love? .”
― From BBC TV/Amazon's Ripper Street.
[/I]
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Fatgadget
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| posted on 2/12/07 at 08:33 PM |
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quote:
Originally posted by Werner Van Loock
If you intend to keep the drums, use single master cylinder, the dual setup has no advantage and more possibility on problems and a possible sva fail
if not done right, ie locking the adjusting mechanism and making sure balance is right.
I thought the reason why a dual braking system is one of fail safe?
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Bluemoon
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| posted on 3/12/07 at 09:40 AM |
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Single in this case is actuality a dual circuit cylinder, i.e. standard fitments. Dual in this case is referring to two separate cylinders. Both are
dual circuit.
Dan
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RazMan
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| posted on 3/12/07 at 11:58 AM |
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I find the bias bar setup very fiddly to install but easy to adjust (you can get a dash adjuster which makes it even easier)
Having said all that, I will be going for a compensator valve next time.
In either case it is vital to do your calculations before buying the brakes - I ended up a little overbraked on the front despite winding the bias bar
to the rear.
Cheers,
Raz
When thinking outside the box doesn't work any more, it's time to build a new box
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