by droopsnoot » Fri Jun 08, 2012 10:14 am
I'm not completely sure either, but usually the company that makes up the braided hoses will have a list of the appropriate dimensions - I know it's a kit car, but for the front end at least the braided hoses will be the same if you've used the whole subframe. As for the rear, that sounds quite different because on Firenza there is a single rear brake line, a flexible hose from the bodywork to the rear axle, a brake line from there to nearside cylinder and one from there across the axle to the offside cylinder - the braided hose wouldn't be anywhere near the cylinder.
They're imperial fitting as opposed to metric. I *think* it's correct to say that there are only metric or imperial options for car brake lines, not multiple sizes of each.