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Johnboy · Jul 11th, 2002, 06:11 PM

Does anyone know why the Cooper S brakes feel so different to those in the Cooper?

Is it a simple case of them having changed the biasing? If so, why?!

Confused, of London.

Jazzy Jase · Jul 12th, 2002, 03:47 AM

They are the same brakes in the S as the cooper.

Could it be that the S is a lot heavier and has different weight distribution?

What differences are you noticing?

Johnboy · Jul 12th, 2002, 01:52 PM

I've got a std. Cooper - was just lucky enough to get a test drive in an S with about 3k on the clock.....

Noticably dull - The best way to describe it, is that it's as good stopping an S going forwards, as it is stopping a Cooper going in reverse!

More pedal pressure required, and not as sharp. Seems to be more diff. to bring it to a complete standstill.

J.

Mini_me · Jul 17th, 2002, 11:52 AM

drove an S last week. Didn't notice any difference from my cooper.

Coati1 · Jul 17th, 2002, 12:21 PM

Quote:

Originally posted by Johnboy
Does anyone know why the Cooper S brakes feel so different to those in the Cooper?

Is it a simple case of them having changed the biasing? If so, why?!

Confused, of London.

If the S you're driving has the 17" wheels, that could be the answer. As was mentioned, the extra rotational weight of the 17" rims will have an effect. If you look in the Cooper S forum, there's a thread about this right now.

Now if both cars have the same wheels and tires ...

Johnboy · Jul 17th, 2002, 03:12 PM

Aha - Rotational weight - Thanks, it makes sense now! - I thought the thread referred to unsprung mass
Do you think it would have that much of a difference, and would the weight of light alloy plus lower profile tyre be much more (including momentum of rotating mass) than that of my 15s...

Also wondering if post September build Coopers had further detuned braking systems.

J.

Jul 11th, 2002, 06:11 PM	#1
Johnboy MINI2 Regular Join Date: Aug 2001 Location: uk Local Time: 11:17 AM Posts: 345 Offline	Cooper S - Brake difference Explaination? Does anyone know why the Cooper S brakes feel so different to those in the Cooper? Is it a simple case of them having changed the biasing? If so, why?! Confused, of London.

Jul 17th, 2002, 12:21 PM	#5 (permalink)
Coati1 MINI2 Regular Join Date: Apr 2002 Location: SoCal Local Time: 02:17 AM Posts: 80 Offline	Re: Cooper S - Brake difference Explaination? Quote: Originally posted by Johnboy Does anyone know why the Cooper S brakes feel so different to those in the Cooper? Is it a simple case of them having changed the biasing? If so, why?! Confused, of London. If the S you're driving has the 17" wheels, that could be the answer. As was mentioned, the extra rotational weight of the 17" rims will have an effect. If you look in the Cooper S forum, there's a thread about this right now. Now if both cars have the same wheels and tires ... '03 Cooper S Chili Red/White, Sport Pack, Rally Lights, HK sound (Estimated build date 12/6/02) '02 WRX Wagon (24,000 miles in 12 months) '90 VW Corrado (180,000 miles in 12 years)

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Jul 12th, 2002, 03:47 AM	#2 (permalink)
Jazzy Jase Moderator Join Date: Jul 2001 Location: Berkshire, UK Local Time: 10:17 AM Posts: 432 Offline	They are the same brakes in the S as the cooper. Could it be that the S is a lot heavier and has different weight distribution? What differences are you noticing?

Jul 12th, 2002, 01:52 PM	#3 (permalink)
Johnboy MINI2 Regular Join Date: Aug 2001 Location: uk Local Time: 11:17 AM Posts: 345 Offline	I've got a std. Cooper - was just lucky enough to get a test drive in an S with about 3k on the clock..... Noticably dull - The best way to describe it, is that it's as good stopping an S going forwards, as it is stopping a Cooper going in reverse! More pedal pressure required, and not as sharp. Seems to be more diff. to bring it to a complete standstill. J.

Jul 17th, 2002, 11:52 AM	#4 (permalink)
Mini_me MINI2 Regular Join Date: Jul 2001 Location: Böblingen Stuttgart Local Time: 11:17 AM Posts: 337 Offline	drove an S last week. Didn't notice any difference from my cooper.

Jul 17th, 2002, 03:12 PM	#6 (permalink)
Johnboy MINI2 Regular Join Date: Aug 2001 Location: uk Local Time: 11:17 AM Posts: 345 Offline	Aha - Rotational weight - Thanks, it makes sense now! - I thought the thread referred to unsprung mass Do you think it would have that much of a difference, and would the weight of light alloy plus lower profile tyre be much more (including momentum of rotating mass) than that of my 15s... Also wondering if post September build Coopers had further detuned braking systems. J.

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