I just replaced my pads (Hawk HPS), lines (Z1 Perf), and fluid (Motul RBF 600). I currently have fairly new Stoptech x-drilled rotors up front and the stock rotors in back (about 70k miles if the previous owner didn't replace them).

I was experiencing a rather long push on the pedal before the brakes would bite before I did all of this work. Although the brakes are a lot tighter now, grab more firmly, and don't "give" while applying pressure, I still have quite a bit of pedal travel - I'd say roughly 2-3 inches - before they actually bite.

Is this normal? The only thing it could be, unless I'm missing something, is the rear rotors are worn down. They looked fine, no grooves or anything unusual, but I didn't have a micrometer handy to measure them.

Is there anything else I should consider? I know the system is air free and there aren't any leaks. Fluid is full, calipers looked good... I'm at a loss.

 

Your FSM explains how to set the booster rod/plunger vs master cylinder............CAREFUL you don't cause dragging brake pads.

After 70k the flexlines may start to wear and expand..............new brakelines are often helpful.

 

I have wondered the same thing in my g35. I don't know about two-three inches, but I have often thought of the brakes as having a soft pedal. And I usually downshift to slowdown, to extend the life of my brakes, so I know that it is not because they are worn.

04 G35/ 27,000/ brembos

 

not a good idea to downshift to slow down.. would you rather cause wear on your brake pads or your engine internals!!?

 

Thank you, I'll check out my manual when I get home.