C8 Z06 rumored with massive rubber!!
03-05-2021, 03:23 PM
#21
Drifting
Tire widths usually track load - I'd expect large rears on the C8Z. It's going to have high rear lateral loads and load transfer with the new center of mass, plus high torque through gearing.
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03-05-2021, 04:24 PM
#22
Le Mans Master
Member Since: Jul 2000
Location: North Dallas 40 TX
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https://www.compositesworld.com/news...on-fiber-wheel
"Bucci’s new 22-inch high-performance automotive wheel is all carbon fiber and made via high-pressure resin transfer molding"
"given the performance specifications of the 22-inch wheel, it is targeted toward high-performance vehicle use only. Further, he says, the cost of the wheel is about 60% more than the highest performing forged aluminum wheels on the market".
"Bucci says that, compared to the equivalent forged aluminium wheel, the Bucci Composites full composite wheel achieved six kilograms of weight savings per corner"
.
.
"Bucci’s new 22-inch high-performance automotive wheel is all carbon fiber and made via high-pressure resin transfer molding"
"given the performance specifications of the 22-inch wheel, it is targeted toward high-performance vehicle use only. Further, he says, the cost of the wheel is about 60% more than the highest performing forged aluminum wheels on the market".
"Bucci says that, compared to the equivalent forged aluminium wheel, the Bucci Composites full composite wheel achieved six kilograms of weight savings per corner"
.
.
21 or 22" wheels are for looks, not performance. They are anti-performance.
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03-05-2021, 04:36 PM
#23
lollzzzz
And didn't C7 grand sports get 335's as well???
I mean that had under 500hp.
Or maybe they did that to keep all the widebody C7's the same?
I guess that'll be the same for the C8 widebody models. Start with the NA z06 at 345's and the ZR1 with the TT engine will definitely need those meats in the back.
Hmmmmmmmmmmm....
03-05-2021, 04:45 PM
#24
Melting Slicks
Big tires are cool until you have to buy a new set.
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03-05-2021, 04:54 PM
#25
Anyone else besides me think that the C8 Z06 should:
- have 275-19f, 315-19r
- thinner carpet + reduced sound insulation
- thinner glass
- titanium exhaust
- hardtop (I understand the airbag issues)
- most supportive seat available
I like that the Stingray has a broad bandwidth of performance and options, but the Z06 needs to be more focused. It would be beneficial for some people to hate it, because some will LOVE it even more. You cannot please everyone with every model, so have multiple models that each do something unique.
- have 275-19f, 315-19r
- thinner carpet + reduced sound insulation
- thinner glass
- titanium exhaust
- hardtop (I understand the airbag issues)
- most supportive seat available
I like that the Stingray has a broad bandwidth of performance and options, but the Z06 needs to be more focused. It would be beneficial for some people to hate it, because some will LOVE it even more. You cannot please everyone with every model, so have multiple models that each do something unique.
Last edited by Latterlon; 03-05-2021 at 04:59 PM.
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03-05-2021, 04:58 PM
#26
Anyone else besides me think that the C8 Z06 should:
- have 275-19f, 315-19r
- thinner carpet + reduced sound insulation
- thinner glass
- titanium exhaust
- hardtop (I understand the airbag issues)
- most supportive seat available
I like that the Stingray has a broad bandwidth of performance and options, but the Z06 needs to be more focused. It would be beneficial for some people to hate it, because some will LOVE it.
- have 275-19f, 315-19r
- thinner carpet + reduced sound insulation
- thinner glass
- titanium exhaust
- hardtop (I understand the airbag issues)
- most supportive seat available
I like that the Stingray has a broad bandwidth of performance and options, but the Z06 needs to be more focused. It would be beneficial for some people to hate it, because some will LOVE it.
If GM is making the C8Z the go to track car in the corvette lineup, it will most definitely have a lightweight exhaust, lighter seats, thinner glass and lighter wheels to keep as much weight down. Not to mention the screaming NA flat plane @ whatever hp it gets to. Which wouldn't matter on the actual race track as a huracan "only" has 630hp NA and it kicks major *** sitting at 3500lbs.
The big difference is weight if they go NA. I do believe that's what they're doing if all the rumors of the so called going back to the roots and more track focus yada yada is true.
03-05-2021, 05:07 PM
#27
The Consigliere
Member Since: May 2006
Location: 2023 Z06 & 2010 ZR1
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3,650 here we come.
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03-05-2021, 05:08 PM
#28
Race Director
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Location: Fort Worth, Texas
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All new size, wonder if they will be made by Michelin and of the 2R compound?
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03-05-2021, 05:16 PM
#29
F8 Tributo - 711HP, 3200lbs
245/35/20
305/20/20
This isn't about power, this is about weight - all the cars listed so far weigh several hundreds of pounds less. GM doesn't care to chase lightweight any longer, for them it was more important chasing the $59,500 MSRP than anything else. As cars continue to evolve, GM's ability to mask this design philosophy with even wider tires and more HP is going to get harder and harder.
345 tires is ridiculous and not in a good way.
245/35/20
305/20/20
This isn't about power, this is about weight - all the cars listed so far weigh several hundreds of pounds less. GM doesn't care to chase lightweight any longer, for them it was more important chasing the $59,500 MSRP than anything else. As cars continue to evolve, GM's ability to mask this design philosophy with even wider tires and more HP is going to get harder and harder.
345 tires is ridiculous and not in a good way.
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03-05-2021, 06:51 PM
#30
Le Mans Master
I would much prefer they did not move up to 20/21 inch wheels. It just adds more rotational mass. That doesn't help acceleration, braking or turning. If they could still get enough brake, I would have preferred them going down to 18/19 inch wheels. Performance over "looks". OK, I don't really like the rubber band look.
Smaller tires, but with very low weight. Massively wide tires were not needed for the original NSX.
03-05-2021, 06:56 PM
#31
Burning Brakes
Thread Starter
According to Porsche, Cup 2 R has advantage of - 0.5 sec/km over regular Cup 2. They were able to cut off 8-10 second per lap in Nürburgring on these tires.
ZR1 did 6:55 in segmented lap on Cup 2 according to Jim Mero. Adding advantage of Cup 2 R, ZR1’s lap-time will be improved significantly.
I bet the new Z06 has better everything and it will be on Cup 2 R. Just do math.
Last edited by Iker; 03-05-2021 at 07:32 PM.
03-05-2021, 07:22 PM
#32
This will be interesting
Accordung to Porsche, Cup 2 R has advantage of - 0.5 sec/km over regular Cup 2. They were able to cut off 8-10 second per lap in Nürburgring on these tires.
ZR1 did 6:55 in segmented lap on Cup 2 according to Jim Mero. Adding advantage of Cup 2 R, ZR1’s lap-time will be improved significantly.
I bet the new Z06 has better everything and it will be on Cup 2 R. Just do math.
Accordung to Porsche, Cup 2 R has advantage of - 0.5 sec/km over regular Cup 2. They were able to cut off 8-10 second per lap in Nürburgring on these tires.
ZR1 did 6:55 in segmented lap on Cup 2 according to Jim Mero. Adding advantage of Cup 2 R, ZR1’s lap-time will be improved significantly.
I bet the new Z06 has better everything and it will be on Cup 2 R. Just do math.
03-05-2021, 07:28 PM
#33
Road legal GTLM car in the making. I am still confused that nobody is figuring any of this out. Hmm, now lets see. Which is faster? A GTLM based car or a GT3 based car? I have consistently been getting banned for making these observations, and i will leave it at that. Massive rubber could mean cool looks or a serious car, take your pick. My specific take on this subject is be prepared for the hardest core track car GM has ever released. Many of the people on this forum are missing the point by posting McLaren specs because McLaren wont give you those tires from the factory, but you can buy that stuff later if you want.
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03-05-2021, 07:39 PM
#35
Burning Brakes
Thread Starter
This will be interesting
According to Porsche, Cup 2 R has advantage of - 0.5 sec/km over regular Cup 2. They were able to cut off 8-10 second per lap in Nürburgring on these tires.
ZR1 did 6:55 in segmented lap on Cup 2 according to Jim Mero. Adding advantage of Cup 2 R, ZR1’s lap-time will be improved significantly.
I bet the new Z06 has better everything and it will be on Cup 2 R. Just do math.
According to Porsche, Cup 2 R has advantage of - 0.5 sec/km over regular Cup 2. They were able to cut off 8-10 second per lap in Nürburgring on these tires.
ZR1 did 6:55 in segmented lap on Cup 2 according to Jim Mero. Adding advantage of Cup 2 R, ZR1’s lap-time will be improved significantly.
I bet the new Z06 has better everything and it will be on Cup 2 R. Just do math.
GT3 RS
Cup 2 R : 1:37.88
Cup 2 : 1:39.74
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03-05-2021, 07:41 PM
#36
Le Mans Master
03-05-2021, 10:14 PM
#37
"That will never happen with the size brakes they use these days. Have you seen the GT500 brakes? HUGE. I think close to 16" rotors."
The C7 Z06 with the Z07 package gets 15 and half inch I believe.
The C7 Z06 with the Z07 package gets 15 and half inch I believe.
Last edited by michael510; 03-05-2021 at 10:14 PM.
03-05-2021, 10:42 PM
#38
Racer
The C8R uses 18" wheels. If you really want to track your car in a practical sense and not just for bragging rights, the should do 18's or 19s, and not have high dollar carbon fiber wheels, because they cant handle the abuse . Last I checked, the C8R does just fine with brakes in a 24 hour race and 18" diameter tires.
I guarantee you an 18" wheel compared to a 21" wheels is several pounds lighter.
I really hope that if the corvette team benchmarked the F8 and/or the GT2, well the GT2 weighs around 3250, and the F8 weighs around 3400. .The C7 GS weighs around 3400. If the C8 Z06 weighs more than around 3400 that will be a disappointment. Hell, an Acura NSX with 4WD weighs 3600. No matter how many electronic gizmos you got, you can't escape the laws of physics and moving a lot of mass around is going to cost you in performance. I really hope they have a bare bones track focused version of the C8 Z06, less creature comforts, thinner materials, lighter weight, hell I would take manual seats. It needs to be lightweight, as the C5 Z06, and C6 Z06 were (IMO the c7 Z06 was a porker and shouldnt have been FI).
So if they really benchmarked the Ferraris and Porsches, they should have realized that a car that weighs 3600+ will not work (except in a straight line).
I guess we will find out soon enough.
I guarantee you an 18" wheel compared to a 21" wheels is several pounds lighter.
I really hope that if the corvette team benchmarked the F8 and/or the GT2, well the GT2 weighs around 3250, and the F8 weighs around 3400. .The C7 GS weighs around 3400. If the C8 Z06 weighs more than around 3400 that will be a disappointment. Hell, an Acura NSX with 4WD weighs 3600. No matter how many electronic gizmos you got, you can't escape the laws of physics and moving a lot of mass around is going to cost you in performance. I really hope they have a bare bones track focused version of the C8 Z06, less creature comforts, thinner materials, lighter weight, hell I would take manual seats. It needs to be lightweight, as the C5 Z06, and C6 Z06 were (IMO the c7 Z06 was a porker and shouldnt have been FI).
So if they really benchmarked the Ferraris and Porsches, they should have realized that a car that weighs 3600+ will not work (except in a straight line).
I guess we will find out soon enough.
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03-05-2021, 11:41 PM
#39
Safety Car
Here's a hint.....
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03-06-2021, 05:49 AM
#40
Road legal GTLM car in the making. I am still confused that nobody is figuring any of this out. Hmm, now lets see. Which is faster? A GTLM based car or a GT3 based car? I have consistently been getting banned for making these observations, and i will leave it at that. Massive rubber could mean cool looks or a serious car, take your pick. My specific take on this subject is be prepared for the hardest core track car GM has ever released. Many of the people on this forum are missing the point by posting McLaren specs because McLaren wont give you those tires from the factory, but you can buy that stuff later if you want.
I'm just excited for the possible NA monster we might get!!!!!