What are the prices on those kits normally??

 

They do, you'll just have to wait a year or so to have them painted

 

BTW, +1 on the red Stoptech's FTW.

 

Should be able to get the kit before we move.

$2,595 for the 4 piston, or $3,195 for the 6 piston. Both are priced for slotted rotors. Also Please check with your local distributor for details.

 

I understand the heat capacity but I was sure that a larger pad will also create more firction (i.e. stopping power) since it has a larger contact area with the rotor.
how come that is wrong?

 

Sorry to bring up an old thread but I am interested someone answering this question.

 

i love my rotoras i had stoptechs i think its all inet hype period

 

the larger pad will certainly create more bite (assuming compounds are similar), but the only things that really affect stopping distances are weight and traction

 

Friction force is a function of the coefficient of friction and the normal force.

Coefficient of friction is dependent on the brake pad and rotor. Normal force is not area dependent. That is, the normal force is that same no matter what size the pad is.

So 6,4,12 pot. Doesn't matter, they will all stop in the same distance all things being the same. BBK combat brake fade in the relm of the 350z.

 

I've always had the notion (based on reviewing stopping distance stats for a number of different brakes for our cars), that even the stock brakes work every bit as well as the BBK kits with the primary benefit of the BBK being heat dissipation. So on the first hard stop, you're not going to see much improvement. And if you can keep your stock brakes cool and use the appropriate pad and brake fluid for the application, then even stock brakes can withstand some punishment.

Like Z1 said, the frictional force of b/w the tires and the road will be less than b/w the calipers/pads and the rotors - so that will determine your stopping distance (until the brakes fade due to heat of course).

So when is someone gonna develop water cooled calipers

 

So if that pad was the size of a dime and the same normal force was applied to it as a 6pot Rotora/Stoptech kit, it would stop the same?

 

within a tiny margin or error, yes, assuming the car was the same weight and the tires were the same

the more pistons you have, given the same size pad, lets you place pressure on the pad in more spots, which equalizes the pad to rotor contact better. This might improve stopping distances ever so slightly, but it's primary function is not only pedal "feel", but pad life as well.

 

Thanks for the information you guys!!!

~Robert