Mike in CA

I'm about 30 minutes from Sears Point/Sonoma Raceway. Also have a little place in Monterey that's about 15 minutes from Laguna. But there's no way I would consider forcing anyone to take a drive in a thoroughly boring, robot operated, menstrual red 991 GT3. As someone just said, you're better than that.....

TrackFan

I'm not.

porsche518

I think all 991 owners and future owners should add a signature acknowledging that; "Everyone who owns a previous generation of any Porsche is a true connoisseur and obviously a superior human being, and we 991 owners are the garbage ruining Porsche"

Macca

LOL!

Maybe add " Are You are a member of the "MT Taliban"?"

TRAKCAR

Corvette and Cup is only other solutions

TrackFan

C7 ZO6 is a definite solution. It almost at the top of my list now.

The 991 GT3 did 7.25 at Nurburgring, and Chevy claims the C7 will break 7.30 there. That may put the ZO6 close to the GT3.

In theory anyway.

Macca

Perhaps you are right. They are very different machines however. I admire you for wanting to go home grown. I guess you will save alot of money too.

911rox

Ouch! touchy, touchy...

All good, no need to congest your signatures with such a statement... Some of us are simply pointing out that this writer couldn't write a review to save his life with all the factual inaccuracies, certainly no claims of superiority or attempts at demeaning the new metal...

eg. 5kg saving per rotor for PCCBS. Steels typically weigh about 10kg. these are supposedly 410mm diameter and weigh what? 5kg??? Maybe on a Datsun!

Mike in CA

The writer is obviously generalizing based on previous Porsche brakes but he's not that far off about the weight difference. Porsche claims that, given rotors of equal size, PCCB's are approximately 50% lighter than steel. If steel rotors weigh 10KG that would indeed put CCB's at 5kg. The new 410mm CCB's have about 20% more area than 380mm steel discs so add another 20% to the CCB's and you get a savings of about 4KG instead of 5.

All rough numbers, but the point is they're in the ballpark of what the article mentioned and at least weren't pulled completely out of someone's ***.

911rox

Based on rough calculations, that 30mm increase on the front actually adds about 30-35% in material to the rotor. It's density may be just over half that of the cast iron unit but effectively if the 380mm rotors were 10kgs, the 410mm rotors are likely to be closer to 7kg now thru their shear size... food for thought...

I look forward to them being weighed by an owner at some point as now, even Porsche aren't claiming a weight difference on their official website from what I've seen to date... hmmmm

Dave C4S Cab

Thanks for posting, nice read. Helps with the long wait for my allocation(#3 spot)

kosmo

a '11 Z06, driven by Mero, did a 7.23.
I would guess that a new Z would be faster.


However I think Im w/ Trackcar here. I think the sweet spot may very well be the Stingray w/ Z51 pak for $60k. Add buckets, rollbar, track tires/pads and youre at about $70k all in. Not sure if a Z06 at $90-100k would be "worth it."

kosmo

oh $hit, so can one expect to pay 30% more when replacing these expensive rotors?!

Manifold

+2