How close can a brake line be to a header pipe? Same question for a battery cable

The PVC wire is rated btwn 150-168*. Brake fluid at 300*. I'd be concerned with extended temps over 150* for wire. In a few years it will go brittle and hot brake fluid reduces stopping power. Shield it with 2 layers with as much air space as possible.

I took some Lava header wrap and put it on the brake line,starter wires to help

The header wrap probably would work, it has a high heat reflexion value. I don't want to wrap the frame but If I used the metal tie's the wrap could be held on to the side of the frame covering the brake line. yes -no? anyone else do this?

go to a scrap yard and grab some of the silver insulation that they use on the newer cars and wrap your brake lines and hold it in place with stainless tie wraps, I had to do that with the front line of the master cylander because of the fenderwell header tube being real close to the line.

The silver insulation would be hard to work with I think so if need be cut strips the length between chassis clips and tuck it around the brake line and staple as needed to fold it over.

If the scrap yard was closer , It's 15 miles away, it might be something to look at , but, looking at the header wrap there are the fiberglass type and the lava rock type. Both have similar heat barrier qualities. pro's and cons of them ? Is either or both durable in the non attended use of it. [ Not wrapping headers ]

if the brake line is tight against the frame, then the frame is going to act like a heat sink and it's not going to be a problem. battery cable, that's a different story.


Joe

The Lava did not shed fibers as much and is more flexable but IMO the Lava degraded faster

What is preventing you from moving the brake line?

Why not move it? Buying another roll of brake line , drilling all the rivets on the support clamps, re-bending the new line to move it a little over one inch. And of coarse getting the flair right. I have found in working with brake line it doesn't re-bend to a different direction very well. It seems that using a shield type material would save some money and a lot of curse words also.

Id have to see some pics first of what you got, but bending the brake lines a 1/2" or so shouldn't be a problem. No redoing the Whole brake line system either would be needed, a New roll?? No way, probably making this harder then it has to be.

I thought you just had some mild clearance problems. Will go back and read the whole thread, might of missed something. So hold on....

Edit, reread, still cant get a exact grasp on the brake line issue. It can be bent fairly easy, really easy in most cases. Do a partial bend and some heat shielding. How Close is the Header pipe and Brake line Now. 1' gap is plenty on a drag race car. bat cable a little more, its not like your driving this thing cross country.

Ok, I have 2 x 3 frame rails that 2 header pipes come down within a half inch of the frame on both sides the frame on each side. The brake line now runs down the outside about 1" from the top of the frame. There is about 5" of brake line exposed to header heat 1 foot from the head. Pretty easy to visualize . Moving the line up to the center of the frame is a option but then it would be subjected to header heat from both sides.