Im basicly completely redoing my braking system with 6 piston wilwood calpiers in the front and 4 piston in the rear with a three pedal tilton pedal box banalce bars and tilton mastercylinders. So this got me thinking should i increase the size of the brake line tubing.

Why would you increase the size?

Make sure you have all the brake line equipment/tools, fittings, etc before you start. Plan it out on paper, and make sure you have everything.

I assume you are doing the overhung 3 pedal, are you planning to weld a frame to mount it to, b/c i don't remember you mentioning a cage or anythingin the other posts.

Are you running all solid lines, or SS braided as well?

What size Master Cylinders are you ordering?

This is not a part of the car you want to have a small mistake on.

Don't forget fittings for firewall, brake light switch, etc.

And to answer your original question, there's usually a pretty standard hard line brake size.

im going with the floor mount 3 pedal assembly and im gonna put a nice sized alumunum plate on the floor 12" by 24" to hold the pedals to the floor. IM going to run hard line thru out the car and us SS to conect the hard line to the calipers. And i dont know about the master cylinder size yet i emailed tilton and am waiting for them to tell me whaat to use

I would search the forum, tilton probably won't know what to use for your specific application.

You are talking about this setup, right?

http://www.pegasusautoracing.com/Images/L/3534.JPG



Have you tried using pedals like this? Just make sure you are comfortable with this configuration before sinking $6-800 into it.

what thickness 12" x 24" aluminum plate are you plannig to use? You can also just weld a thin sheet in place for the support.

yes ive used floor mounts before and i love them and the aluminum plate will probkly be .25"

Cool. What kind of car were the floor mounts in?

1/4" seems a tad much..thats like a 7lb slab of aluminum, plus hardware.

Why were you looking to use a larger diameter Brake Line?

well im figureing im vastly increasing caliper and master cylinder sizes front and rear so the amount of fluid thats gonna be moved is at lot larger so id figure more fluid in bigger tubing is a good thing lol

Uhh, no.

Brake hydraulic lines transfer pressure, not volume. AN-3 hoses and stock-sized solid lines are just fine. And the more fluid volume you have, the more pedal movement it takes to compress that fluid. Yes, brake fluid DOES compress, espcially when it's been heated/boiled and full of moisture.