SS Brake Hose... Racing vs DOT Options

[Slick914]

What's the difference between the racing SS brake hoses and the street ones?

My car has the racing ones on right now, but I do have the street versions on standby.

[jmill]

I worked in the aircraft industry for years and I never saw a teflon lined SS hose fail. That is all the aircraft manufactures use. I've seen fittings leak or the line abraded but I've never seen one pop. A failure would be catostrophic. Aircraft have redundant hydraulic pumps but not reservoirs. I'm sure FAA testing is more stringent than the DOT.

That being said I've never seen a SS hose used in an application that subjected it to that much movement. Aircraft use them in locations where vibrations would cause a solid line to work harden. Their range of motion is very limited. Your asking alot of that teflon everytime you go from lock to lock. Take a piece of that teflon and bend it with your fingers. You'll see it kink and it'll turn white at the bend. Anytime that line flexes after that it will work harden the kink and eventually fail.

I like the idea of not losing volume/pressure due to line bulge but it's really the wrong application for the product.