ZR-1 Net Registry Forums - View Single Post - New Brakes....No Stopping Power....help please

mike100 · 04-10-2011

You probably still have air in the system, but even if you do get a hard pedal when you pump the brakes a couple of times, I'd say maybe you just need to put 30 or 40 miles on those pads because they will be terrible until they really bed in (depending on compound).

Not sure how to diagnose your vacuum booster. My non-ZR-1 95 coupe had terrible power boost, but my 91 ZR-1 with the double diaphragm brake booster is twice as good.

try to bleed the rears again...that firmed up my pedal (which was crap when I acquired the car).

ON EDIT: I now have brand new C5 calipers on my fronts with a lot more pad area, but even my stock J55 calipers were good enough to lock up the brakes a couple of times once fully bled.

04-10-2011	#2
mike100 Join Date: Feb 2011 Location: San Marcos CA Posts: 1,786	Re: New Brakes....No Stopping Power....help please You probably still have air in the system, but even if you do get a hard pedal when you pump the brakes a couple of times, I'd say maybe you just need to put 30 or 40 miles on those pads because they will be terrible until they really bed in (depending on compound). Not sure how to diagnose your vacuum booster. My non-ZR-1 95 coupe had terrible power boost, but my 91 ZR-1 with the double diaphragm brake booster is twice as good. try to bleed the rears again...that firmed up my pedal (which was crap when I acquired the car). ON EDIT: I now have brand new C5 calipers on my fronts with a lot more pad area, but even my stock J55 calipers were good enough to lock up the brakes a couple of times once fully bled. Last edited by mike100; 04-10-2011 at 01:26 PM.