Board logo

Pedal Box Options
ChrisLeary - 14/9/11 at 01:40 PM

Afternoon all,

I've started stripping the seven I bought a few weeks ago and the pedal box thats fitted really needs updating and replacing.

What are my options? I've got an MT75 gearbox so it must be a cable clutch. I'm not too sure what the score is with bias bars, so any help would be great.

I've been looking at floor mounted boxes, but they seem expensive, it it the easiest option and most cost effective I'll buy one, I'm just not too sure what I should be looking for.

Thanks in advance,

Chris


jossey - 14/9/11 at 03:15 PM

you can build a floor mounted pedal box cheapish.

someone on here has a red interior with a lovely pedal box built. it looks great and would be cheap to make.


Myke 2463 - 14/9/11 at 03:15 PM

Check out OBP's deals in Traders Deals.


ChrisLeary - 14/9/11 at 03:53 PM

Any info about bias bars and whether they're needed would be great. I've read some topics on here about ratios for the pedals, is it really that technical to draw up designs for a pedal box??

Cheers,

Chris


ChrisLeary - 14/9/11 at 05:56 PM

151 views and no help?

This must be a very complicated question.

Cheers,

Chris


iank - 14/9/11 at 07:02 PM

Bias bars are just a convenient way of optimising the braking balance, they also allow a choice of cylinder sizes between front and rear. It's getting hard to find donor master cylinders that aren't servo assisted that that's another consideration.

In a racing car you'd have adjustable bias control and change it from track to track, where for road cars that go through IVA it needs to be locked down (though not as tightly as they originally insisted - now you just need a warning sticker rather than a welded nut.

There are plans for a floor mounted pedal box in the Haynes Roadster book if you are a competent metal worker/welder that's probably the best way to go for minimal cost.

Saturn Sportscars sell a completed version to give you an idea if you don't have the book.
http://www.saturnsportscars.co.uk/store/index.php?_a=viewProd&productId=23

Can't seem to find anyone who just sells the laser cut parts any more (3GE used to until they closed).


ChrisLeary - 15/9/11 at 09:58 AM

Thanks for the reply Ian.

So do I really need a bias bar set up, or are there other options?
The Haynes Roadster book, is that the one done by Chris G as opposed to Ron Champion one?

Thanks again,

Chris

quote:
Originally posted by iank
Bias bars are just a convenient way of optimising the braking balance, they also allow a choice of cylinder sizes between front and rear. It's getting hard to find donor master cylinders that aren't servo assisted that that's another consideration.

In a racing car you'd have adjustable bias control and change it from track to track, where for road cars that go through IVA it needs to be locked down (though not as tightly as they originally insisted - now you just need a warning sticker rather than a welded nut.

There are plans for a floor mounted pedal box in the Haynes Roadster book if you are a competent metal worker/welder that's probably the best way to go for minimal cost.

Saturn Sportscars sell a completed version to give you an idea if you don't have the book.
http://www.saturnsportscars.co.uk/store/index.php?_a=viewProd&productId=23

Can't seem to find anyone who just sells the laser cut parts any more (3GE used to until they closed).


scootz - 15/9/11 at 12:19 PM

Give us a clue...

What type of pedal box and MC do you currently run?


scootz - 15/9/11 at 12:22 PM

quote:
Originally posted by ChrisLeary
151 views and no help?
This must be a very complicated question.



PS - a post like this is unlikely to help your cause... particularly when it comes only a few hours after you asked the question!


ChrisLeary - 15/9/11 at 04:44 PM

quote:
Originally posted by scootz

PS - a post like this is unlikely to help your cause... particularly when it comes only a few hours after you asked the question!


I agree completely, but saying that, with so many views, I just thought some must had had an idea or atleast a bit of information for me.

But anyway, Scootz, the setup is from a sierra I think, and it's running the servo, which ideally, I want to remove.

Thanks again for your reply,

Chris


macc man - 15/9/11 at 05:30 PM

I removed the home made pedal box from my kit. I changed it for a floor mounted bias pedal box from optimum balance products. I was pleased with the quality and was right not to attempt to make a home brew box. Worth the money IMHO.


iank - 15/9/11 at 07:26 PM

No you don't need a bias bar set up, using the master cylinder from a non servo car works quite well.

People have used early Fiesta cylinders, but the one from Fiat 124's/Lada's is well regarded and very cheap new.
Part number you want is BMC4020.

Brakes International currently have it for £18.39+VAT
http://www.brakesint.co.uk/

Yes the Haynes Roadster book is the Chris G book.



quote:
Originally posted by ChrisLeary
Thanks for the reply Ian.

So do I really need a bias bar set up, or are there other options?
The Haynes Roadster book, is that the one done by Chris G as opposed to Ron Champion one?

Thanks again,

Chris

quote:
Originally posted by iank
Bias bars are just a convenient way of optimising the braking balance, they also allow a choice of cylinder sizes between front and rear. It's getting hard to find donor master cylinders that aren't servo assisted that that's another consideration.

In a racing car you'd have adjustable bias control and change it from track to track, where for road cars that go through IVA it needs to be locked down (though not as tightly as they originally insisted - now you just need a warning sticker rather than a welded nut.

There are plans for a floor mounted pedal box in the Haynes Roadster book if you are a competent metal worker/welder that's probably the best way to go for minimal cost.

Saturn Sportscars sell a completed version to give you an idea if you don't have the book.
http://www.saturnsportscars.co.uk/store/index.php?_a=viewProd&productId=23

Can't seem to find anyone who just sells the laser cut parts any more (3GE used to until they closed).