Quote:
Originally Posted by Tristor
While it is true that generally its the pad compound selected and the quality of bedding process that determines noise, that's not true for J-hooked rotors. J-hooks themselves are the primary factory in the vast majority of the brake noise originating from the AP Racing Sprint BBK. There's a few other things which factor into it, but it's not worth delving into. Main thing to understand is that it doesn't matter which pad compound you choose, the AP Racing Sprint BBK is loud...
...the J-hooks make it have massive initial bite, so there's some advantages. But all-in-all, for my purposes it wasn't quite cutting the mustard. For someone doing significant amounts of AutoX in a class which allows a BBK this would be a great BBK to pair with some Carbotech AX6 or similar, but for serious road track use the Sprint BBK doesn't have enough thermal mass.
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This just isn't true. I'm sure plenty of people will back me up on this one. I've used the Sprint kit with and without the J-Hook rotors. There is only slightly more noise with the j hook rotors but there is no increased squealing. It's just a scuffing noise that is pretty quiet. Any pad squeal will come down to pad compound and the bedding procedure.