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10-29-2012, 01:09 AM | #1 |
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Brembo BBK questions
Hi guys,
At the moment my E90 has no brake or suspension upgrades. I'm looking to upgrade both and I'm looking for some info on Brembo's BBK I don't track my car often - at most 4 times/year, so time savings in pad changes is not an issue. I guess I don't really need a BBK if I seldom track my car, but I wanted to find out about the wieght savings of the BBK kits. Does anyone know the weight difference between stock F/R setup and Brembo's 380mm BBK? Is there any weight savings between the 380mm and the 365mm? I have 18" rims so the 365mm is looking like a more attractive option for me right now. Plus, I think the rotational inertia is less. |
10-29-2012, 04:39 AM | #2 |
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It's about 3 lbs per corner. And definitely noticable in the handling of the car!
The 365mm rotors will of course weigh a little bit less vs the 380mm, but not much. If your wheels clear the 380mm kit, I would get that one in the front (if you track the car regularly - otherwise it's $$$ overkill for a street car). I have 355/345 mm on my track-prepped 335i and it works great.
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10-29-2012, 09:54 AM | #4 |
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Thanks for the reply ... only 3lbs difference? Is this the difference in the rotor assembly alone or the whole kit? I thought because of the monoblock aluminum caliper and floating hat, you would save at least 8lbs/corner.
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11-09-2012, 12:00 AM | #5 | |
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Quote:
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11-10-2012, 07:58 PM | #6 |
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I'm Not sure brembos are very corrosion resistant. My hubs have oxidized a little bit. They were black when new and are turning a shade of grey.
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11-12-2012, 10:38 PM | #7 |
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How do those work? anyone have experience with them?
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11-13-2012, 12:07 AM | #8 |
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Why are you concerned about weight savings when it comes to brakes?
You WANT some mass there to give more thermal capacity.
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Let me get this straight... You are swapping out parts designed by some of the top engineers in the world because some guys sponsored by a company told you it's "better??" But when you ask the same guy about tracking, "oh no, I have a kid now" or "I just detailed my car." or "i just got new tires."
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11-13-2012, 12:30 AM | #9 |
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The same reason for light weight wheels. Lowered unsprung weight impacts handling and acceleration. I think the weight savings from BBK's comes more from the calipers and the centers of the rotors and less from the clamping portion of the rotor.
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