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      10-27-2020, 06:49 AM   #23
pbonsalb
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Originally Posted by roastbeef View Post
its sort of a bullshit test. most of these kits ship with a set of street pads. bbk's don't shine until the brakes get a lot of heat into them after repeated high speed slowing to induce fade.
a single 100-0 mph stop isn't going to produce fade, so the winner is going to be who has the most aggressive pad compound rather than other factors that determine a quality bbk.
True. Also likely true that over half of BBK never do more than a single 100-0 stop at a time and are better off with street pads than race pads. So the test isn’t really bullshit — it’s probably quite accurate for many BBK owners. They aren’t stopping any faster with their thousands of dollars of fancy brakes.

I am not being critical. I have Stoptech ST40/ST40 on my E36M3 and am about to put an ST60 on my E90M3. I don’t expect to stop any faster (or, in the case of the E90, save any weight).
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      10-27-2020, 07:44 AM   #24
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Quote:
Originally Posted by pbonsalb View Post
True. Also likely true that over half of BBK never do more than a single 100-0 stop at a time and are better off with street pads than race pads. So the test isn’t really bullshit — it’s probably quite accurate for many BBK owners. They aren’t stopping any faster with their thousands of dollars of fancy brakes.
true, i wouldn't argue against that. i guess what i didn't articulate well was a stopping distance comparison test of bbks is probably just going to go to the kit with the most aggressive street pad and more significant, high performance design features are negligible.
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      10-27-2020, 08:30 AM   #25
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Quote:
Originally Posted by roastbeef View Post
true, i wouldn't argue against that. i guess what i didn't articulate well was a stopping distance comparison test of bbks is probably just going to go to the kit with the most aggressive street pad and more significant, high performance design features are negligible.
How they ship is how most people run them, though. It's also possible that they screwed up the brake bias in some meaningful way.

Sure, I get that the test is flawed, but that flawed result is also how a lot of people will run them.

OP doesn't strike me as someone looking for a BBK for actual track performance (in which case he probably would be a lot more excited about something other than Brembo anyway), so he *would* be highly likely to run the supplied pads. Which apparently underperform stock.

So yeah, swap in equal pads, a caliper is pretty much a caliper on the street, other than minor nuances of pedal feel and noise. Minor shifts in brake bias make a difference on the limit, but, again, not really happening on the street. The nuances of consumables replacement cost, also not that important for a street car.
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      10-27-2020, 11:14 AM   #26
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Quote:
Originally Posted by redline9001 View Post
I know that my trophies weight a lot less then regular stop tech kit but never weighed them .
STR60 weigh about 2 lbs less each than ST60, at about 7 lbs each versus 9 lbs each. The rotors weigh the same.
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