a guy on a another forum said that it mite be the brake lines , that the lines maybe expanding due to the pressure and not allowing the caliber to come out as much as it should. he recommend new stainless bradded brake lines . makes sence to me .you?

 

So is mine, they work good for me.

Someone from central said they installed a 450r master on their Z. Had a lot more stoping force, locked up easier. I would try brake lines first.

If you pump them do they work better? I bent a ft brake rotor and the brakes would hardly work on the first application. When I pumped them they would work fine. The bent rotor would push the piston out to far.