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lol, because most people keep a ton of heavy things in the microscopically tiny glovebox.crap in your glove box
Rotors are probably the single biggest payoff weight reduction in the entire car, other than wheels. Rotating and translating weight is worth much more than fixed weight. Those rotors carry a HUGE amount of rotational kinetic energy while spinning.If you want to save weight, start with the low-hanging fruit. Brakes and rotors aren't it. You move on to those once you've reduced all the weight elsewhere. Start pulling out seats, crap in your glove box/trunk/frunk, chargers, cables, etc...
If you're focusing on unsprung weight, move to CF 19" rims. The bang for the buck there is excellent ... not so much with new rotors and calipers.
Ok, but where are you going to find effective rotors that have a substantial weight reduction? You aren't. The weight reduction is going to be minimal on any sort of usable (on the road) rotor. I'm all ears if you know of a street drivable rotor that offers a substantial reduction in weight, by all means, please post a link.
You'd be better off looking for lightweight wheels. Much more potential weight savings and larger diameter can give you much lower angular momentum than changing small diameter rotors.Rotors are probably the single biggest payoff weight reduction in the entire car, other than wheels. Rotating and translating weight is worth much more than fixed weight. Those rotors carry a HUGE amount of rotational kinetic energy while spinning.
I had Brembo from my previous car which was from an upgraded package. The brake dust was a PITA. I did replace them with OEM again once and never again after that. The difference in the amount of brake dust was dramatic. The reason why I'm not seeing remotely as much dust with the Tesla most likely has to do with regen.Brembo's not good enough for ya?
I had Brembo from my previous car which was from an upgraded package. The brake dust was a PITA. I did replace them with OEM again once and never again after that. The difference in the amount of brake dust was dramatic. The reason why I'm not seeing remotely as much dust with the Tesla most likely has to do with regen.
More precisely it's a combination of (rotor + pad)
Friction is generated between two objects. In the car brake the pad is stationary while the rotor is moving (revolving), so the rotor is truly more important than the pad in terms of metallurgy and how they are machined, only a good compatibility of these two components can assure an optimal brake performance.
Hmmm...
I actually produce a line of lightweight rotors for the 355mm brembo brakes used on the modern mustang and camaro pony cars (www.morrisengineering.com). Each rotor reduces unsprung, rotating mass by about 8lb. Our Model S essentially uses the same design for both front and rear. If there was sufficient interest, I could consider running a small batch.