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exhaust clearance

5K views 3 replies 3 participants last post by  TurboS10 
#1 ·
Do I need to be concerned with the clearance between my exhaust pipes and my under the floor mounted, vac assisted, dual master cyl? Is there a "rule of thumb" for distances from brake lines?
 
#2 ·
Yes, you do need to be concerned. Heat from the exhaust pipe can boil the brake fluid in the master cylinder (or brake lines)if too close. I had a similar problem on my '28 Ford Closed Cab Pickup. I also have the additional concern about being too close to the saddle tanks (Poly Gas tanks). I ended up using 2 1/4 diameter pipe which gives me about 2" clearance from the saddle tank and about the same from the master cylinder. I haven't had any problems with this amount of clearance. A heat shield or heat wrap would be another way to elliminate any concerns.
 
#3 ·
Thanks Frisco, I was wondering if I should sacrifice my 2.5" pipes, and go with 2.25", or even 2", to gain more clearance. I don't have a problem with my lines as much as I do with Booster/mastercyl. My pipes will pass beneath the booster/mc, and this will create my scrub-line, so I want the exhaust tucked in as close as possible,but of course my priority is safe and functional brakes. I appreciate you taking the time to tell me of your experiences with this problem.......Blooper :)
 
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