I am working on my 47 Ford coupe. I have a Pete and Jakes dropped axle with 82 Camaro calipers on the front and a 73 Mustang 8" rear end. I am installing a Mustang II dual master cylinder with a 1.06 bore. What size brake lines should I run? Thanks in advance for the replies.
what size did the 82 Camaro and the mustang 8 inch that your sourced parts came from? Keep the line size the same as what the brakes the cars originally came with had and you wont have any issues. I don't know for sure about the 8", but I'm pretty sure they both should have 3/16's line to them.
What the casting /master/calipers are set up for/fitting wise that screw in too them. The car will not care,older cars used 1/4,but they were all older drum. Newer disk and drum work fine with 3/16. If you like the bigger 1/4 line just for looks? It will be a little harder to find fittings,but brake will work great with ether.
have you bought front flexi's yet? - you are metric m10 IF oem calipers I just bought calipers today and have braided lines, but an adaptor to go into the hard line clamp thing, another joint you won't want. you can buy rear axle hard lines pre made with the splitter/flexi and vent bolt - is your axle still 61'' wide?
ooh while talking about brakes master cylinder, large port for the front brakes to the combination valve - is this supposed to be 1/4'' line 1/2'' fitting, then it gets splint at the combination valve down to 3/16 ??
I'd run 3/16" to the front and 1/4" to rear hose and 3/16" from tee on the rear axle. Pretty typical on the disc front/drum rear cars and trucks I've worked on.
I use 1/4 only because my crimper does a better job on 1/4 than 3/16. If you are asking from a fluid dynamics/brake effectivity perspective, it makes zero difference in the real world. -Abone.
I just finished plumbing my car with 1/4' I found it harder to source the fittings and PV valves in this size. It was easier to bend and flare. So it was a trade of.f