Originally Posted by Flachief58
I'm no mechanic but, I'd say that if line a is 4' and line b is 5', as long as both lines are filled with fluid, once you apply the pedal, the pressure should be the same at the end of both lines. But what do I know...
You would be correct.
However, as I've explained and reiterated to the point of beating a dead horse here, that does not apply in a system that does not have a constant, continuous pressure.
Do you know what system in your car follows that lack of constant continuous pressure? You guessed it, your braking system!