07-03-2017, 12:14 AM | #1 |
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Weights of break set ups
Hi everyone
So like most of you I have modified my car quite a bit and in doing so have read a lot of information in regards to performance and handling I see a lot of discussion about the importance of light rims and lighter tyres. People speak of unsprung weight But no one talks about the added weight of going bigger breaks Now I have the standard (non blue) m sport brakes on my car. 330mm rotors up front, 300mm (i think) on the rear. When i think about M Performance breaks, which have huge rotors (370mm and 345mm) and calipers which equates to a lot of steel. Surely this effects handling and performance like heavier rims would...right??? |
07-03-2017, 06:43 AM | #2 |
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Well, the larger brakes are generally more rotating mass so yes it is undesirable. Unless you are doing **very heavy tracking/enduro**, the 'standard' M brakes should be fine even for 'normal' track use with Motul (or the like) brake fluid. What you could do is use M brakes and find someone who makes lightweight hat/floating rotors. That's what i did with the guys at Girodisc for the heavily tracked Ferrari.
http://www.girodisc.com/BMW_c_10.html
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07-04-2017, 10:13 PM | #3 |
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The rotors with the M-sport brake pkg (blue) are the heaviest. M-Sport Line and M-Performance rotors are lighter and weigh about the same.
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07-06-2017, 09:55 PM | #4 |
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M performance weigh about the same. really?
Does anyone have official weights I am not really two fussed but i just thought it was strange no one talks about it when they make a big deal on wheels |
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07-08-2017, 12:43 AM | #5 |
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The link in the first post leads to an excel with the weight of the rotors. The bigger m performance rotors are not significantly heavier, because they are 2-piece rotors. For the calipers, I didn't has the chance to weigh them but the m performance calipers felt lighter than the sliding one pot.
http://f30.bimmerpost.com/forums/sho...d.php?t=858607 |
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