I am a streeter;my top speed is 100kph/62mph. I will never get a speeding ticket, because up here the law is very harsh on speeders. In fact, on the hiway, you will find me poking along at 50/55, not only because of the cops, but because I like poking along. It only adds a couple of minutes to my 15/20 minute trips. And the dual 3" tailpipes are singing a happy song in overdrive, at 55=1900rpm.
In 1999 when I installed my KH system there were no new rotors available; And I only had one spare set; so yes, long rotor life was a priority.
At that time, my 367 engine had 11.3 compression,measured cylinder pressure over 185psi, and a 4 speed; so when the throttle slammed shut at rpm; well, my wife will no longer ride along with me, one or two times was one time too many. And yes I was trying really hard to show her a good time.
Because of this combination;my front brakes are pretty much along for a free ride, as witnessed by having 125,000 miles on my front pads; whereas the car has burned off 3 sets of rear shoes, for which drums and shoes were and still are available.So yes, I was concerned about rotor life, and still am.
When I do hit the brakes hard, the rears, with 295s back there, do a mighty fine job.
With just 235/60-14s on the front, organics are able to lock the front wheels at speeds as high a 35/40 mph ...... maybe more I just never felt the need to try it. I'm guessing this is because the rear brakes, together with compression braking, are doing such a fine job.I would say outstanding job, but I have no yardstick with which to measure it, because typically, the rear brakes are the ones along for a free ride, doing, they say ~15% of the work, when all 4 tires were the same skinny E70s.
I have over 50 years of driving experience; and in all those years, I have never been in a street-car that stops as well as this one. Careful; I didn't say the best ever; only; the best I have ever been in. And since 1999, and in those 125,000 plus miles, I have not had any close calls. Zero,zip,nada,not even scary, cuz you know why? cuz, when I'm driving, I am just driving, not multi-tasking! No radio/no passengers/ no dicks in the next lane/ and I will never have a cellphone.
When I get the urge to be juvenile, I chose my spots very very carefully; I built the car for my pleasure; not for friends, acquaintances, or Joe-blow in the next lane.
On long trips, when I might have a passenger, I remove the 750DP.
On the street; and IMO;
organics rule, because they;
are easy on my discs and drums,
don't need warming up,
do a MORE than adequate job,
Have great feel (after balancing the M/C and rear w/cs, to the tires),
are easy to modulate,
don't puke sticky brake-dust all over my mags,
and yes; are cheap.
If I had ever needed more, I wouldda installed more. It's just that simple.
So, if my priorities are screwed up; ......I'm ok with that.