brake lines too close to headers now?
Senior Member
Joined: Jul 2001
Posts: 649
Likes: 0
From: San Rafael, CA
Car: 1988 Trans Am GTA
Engine: 5.7L TPI (L98)
Transmission: 700RJunk
I have the same headers you do and its a little tight. It won't be a problem as long as none of the lines are directly touching the header tubes. I thought about that too and stuck some aluminum foil over the brake lines (poor-man's heat shield lol) but then i took it off and it hasn't been a problem.
It would be best to shield those brake lines. Durring long drives they are going to be exposed to prolonged heat and it will have an effect on the brake fluid. I just used the DEI 2000* blanket. I cut and wired a form cut section between the brake lines and my Edelbrock headers. Better safe than sorry.
-Matt
-Matt
Member
Joined: Jul 1999
Posts: 272
Likes: 0
From: Tucson, AZ
Car: '82 Camaro
Engine: 383
Transmission: TH-350
I am going to look into some shielding for my brakelines. For the past few weeks after a drive I'd pull in and hear a nasty grinding noise from the rear. Sounds like when you get a key copied at a hardware store. The car was parked and shut off for a few seconds. Didn't know what it was till last week when I took my rear brakeline off to pull my old rear end I heard that noise again coming from the brakeline and it looked like some gas or something was venting out. No fluid came out but weird. Don't know for sure if it has to do with the brake lines being close to the headers but that's about all I can figure. BTW if anyone might have an idea what's going on with mine let me know. For now though my thought is that the fluid is getting too hot. I have headers for awhile though and it was a recent problem. Anyway, I know that I am going to take some precaution, but to my knowledge probably 99% of the people on the board haven't done more than just push the lines away from the headers alittle (I did this and still didn't help).
HTH
HTH
Moderator


Joined: Jul 1999
Posts: 17,264
Likes: 168
From: 51°N 114°W, 3500'
Car: 87 IROC L98
Engine: 588 Alcohol BBC
Transmission: Powerglide
Axle/Gears: Ford 9"/31 spline spool/4.86
I rerouted mine. They now go on the other side of the steering shaft. It's not much but at least they're not touching the headers any more.
I don't have to worry about prolonged heat though.
I suppose in theory is that the brake fluid gets too hot and most DOT 3 brake fluid won't boil until 400 degrees. When the fluid gets hot it expands. This expansion could cause the brakes to slightly apply.
Boiling brake fluid also cause bubbles and bubbles will compress under pressure while a fluid won't. This is why brakes fade when the fluid is hot. Instead of transmitting force through the fluid you're just trying to compress the gases in the lines.
I don't have to worry about prolonged heat though.

I suppose in theory is that the brake fluid gets too hot and most DOT 3 brake fluid won't boil until 400 degrees. When the fluid gets hot it expands. This expansion could cause the brakes to slightly apply.
Boiling brake fluid also cause bubbles and bubbles will compress under pressure while a fluid won't. This is why brakes fade when the fluid is hot. Instead of transmitting force through the fluid you're just trying to compress the gases in the lines.
Trending Topics
brake lines and headers
look under the steering shaft, i put my engine in with SLP 1 3/4 headers and sat the tube right against a brake line. At about 120 after som eprolonged WOT the brakes went away about 75 %
move em and sheild them the fluid will probably brake down anyhow
move em and sheild them the fluid will probably brake down anyhow
Thread
Thread Starter
Forum
Replies
Last Post






