#1 - My understanding with CCB is typically you need more rotor surface area than iron to match their braking performance. There was a discussion on this in the C8Z forums can't find it now.
#2 - You have to remember you're a unique individual that track rats their CT4 BW and doesn't care about using Alibaba parts. I'm 100% supportive of this. However, the majority are not willing to do this.
#3 - As far as your CCB vs iron costs comparison iron is always cheaper. I'm sure there's cheap China iron rotor options.
#4 - Lastly, while CCBs are lighter and people always think they're losing rotational weight making a huge difference with brakes it makes less of an impact than wheels and tires. Removing weight furthest from the hub (tires) makes the biggest difference then wheels then brakes. This is why you see a lot of track guys with factory CCBs (Porsche, C7/C8, etc) switch to iron. Cheaper costs and performance is the same. If you're purely after overall weight reduction nothing wrong with CCBs.
1 - This doesn't make sense to me, CCB is known to have superior braking capabilities. Are the rotors on a 5BW with CCB larger than iron rotors? I don't think they are. The guy here who already put Chinese CCB on his 5BW that were an identical sized drop in part has reported he had to recalibrate his braking foot so he didn't put his face through the windshield. He apparently expeirenced an increase in braking capability with no increase in rotor surface.
2 - Well, that's what I'm trying to educate people about. You are literally getting the EXACT same part, made in the exact same factory, using the exact same equipment, by the exact same workers. The ONLY difference is you invite a middleman into the equation who doubles the final price to the end consumer. You can buy a set of wheels from the ABC Wheel Co for $3,000, or you can buy the wheels direct from the factory that makes them for the ABC Wheel Co for $1,400.
3 - I still feel when you consider the fact that a person would go through 3 sets of iron brakes during the period a single set of CCB would last, the iron still cost more in the long run.
4 - Absolutely correct about the greater benefit coming from weight reduction furthest from the hub. I would think rotational mass is the least of the reasons for CCB. I would think that less rotational mass would benefit acceleration more so than braking. I would think the primary reason for CCB is the reduction in unsprung weight, which improves handling.
4 part B - I've had this conversation with brake suppliers and people at the track. The universal opinion is that people that check the box to add expensive high performance brakes to their car at purchase, but then removed the high performance brakes to drive the car on the track are morons that in most cases bought more car than they can afford. They are so financially stretched by the car purchase, they don't want to face a $10K brake job. So they drive their expensive high performance car in a high performance situation using less than high performance parts.
And please also consider it's not just about being cheap. I'm buying my wheels, brakes and tires on Alibaba, but I'm also the guy running Motul 300V 5w40 Competition Racing oil at $22/quart and I change it every 500 miles, which means every 3 days.
