Brake & Fuel Lines

[Davidbolam]

Hello,

What size brake line is best to use for the roadster? Also how far apart do the need to be fixed to the chassis?

Thanks

David

[Bonzo]

Hi David

3/16" is the standard size for brake pipes, I prefer to use Kunifer pipe as it is not quite so soft as Copper but that is just a personal choice.

6mm or 8mm should be fine for the fuel pipes, again I prefer Kunifer pipe but copper will be fine.

Not sure what engine you are using but I would probably opt for 8mm fuel pipes.

Both Kunifer & copper pipe is very easy to source from the likes of Ebay or at you local motor factors.
The same can be said of the brake pipe fittings ( M10 X 1 for Ford fitment )

Not sure about the IVA requirements for the support of tubes as I have not done that particular job yet

I am sure that one of the builders will be here with the answer to that one shortly.

Hope that is of some help

[skov]

Hi David,

As far as I know the MX5 brake lines are 3/16" with M10x1mm fittings (same as Ford),
and the MX5 fuel lines are 8mm, so best go for that.
For the fuel line I think most people use microbore copper pipe from the likes of B&Q:

http://www.diy.com/diy/jsp/bq/nav.jsp?action=detail&fh_secondid=9264633&fh_locat ion=//catalog01/en_GB/categories%3C{9372015}/categories%3C{9372046}/categories%3C{9372180}/specificationsProductType=copper_pipes/specificationsSpecificProductType=soft_coil_tubing

[spud69]

Hi David,

The manual says that all cables / pipes must be securely fitted at a max 300mm intervals and free from chafing. This reduces in the tranny tunnel though and needs to be every 150mm, preferably laid on a channel.

AndyH

[twinturbo]

Should that not be at most 300mm

[spud69]

Originally Posted by twinturbo

Should that not be at most 300mm

Yes thanks TT..... It's been a long week