ivan111

In this link you can see the Ring lap time of the new Porsche GT3, is pretty stunning that it comes close to the lap time of the Z06 despite having much less power!!!!!!

http://www.caranddriver.com/shortroa...1-gt3-997.html

How they do it?

KNanthrup

The ring is not ALL about power (although there are many parts where it helps). The GT3 is a finely tuned car, especially in the suspension department porsche really goes all-out with this car. Big thumbs up for it, I love GT3's! I'd have one sitting in my garage next to my Z06 if I had money right now :-)

LTC Z06

In a C6 Gen thread someone reports a 7:40 time but with no link.

ivan111

Yeah you are right.....

The other thing that gives this GT3 an advantage over the Z is its new tires with a tread wear of 80 versus the old GT3 220.....

So this tires are super grippy i will like to see what times a Z can put with these ones.......

robvuk

Sounds to me like they haven't done it yet. They HOPE to. There are many, many factors involved. Drivers, temperatures, track conditions, tires, etc. etc. Those ring times are all vague comparisons at best. Until they actually do a shoot out on the same day with the same prep, they don't mean a lot, good or bad. On another day the Z06 could be easily 10 seconds worse or better. Having said that, ring times are a reference point to bench race over. Both of those cars are great I'm sure, but the real proof will be in the track results when they meet at tracks around the country.

Andi

Basically, they're cheating and using R-compound race tires because they figured out they can't touch the Z's runflat street tire times...

I read the same about the 997TT in C&D a month or two ago...

Andi

ivan111

Wow 7:40 i will have to see that to believe it.......

This new 997 GT3 is also quicker than the New 997 TT with power to weight ratios that are similar.......

ivan111

Yeah 7:47 is their best so far......

PeterK

Oh, maybe GM is stupid with going with run-craps on their highest performing car.

Andi

I've never heard of a factory car coming with R-compounds from the factory in the US. Porsche is doing that to get a good Nurburgring time for bragging rights, then when/if they import it to the US, it'll come with standard street tires like all other cars do here. I'd put money on it.

Regarding GM's choice of tires, I don't feel like having the runflats/"runcraps" argument right now. That horse has been beaten to death. My Z06 will continue to wear the stock tires.

Andi

glass slipper

I beat a lot of stock and mildly modified C5 Z06s on the autocross course with my absolutely bone stock ZR1 with no problems. They're running Supercar tires and I'm running Kumho Victoracers/700s. On equal tires, I couldn't touch them and it would be stupid of me to think or say otherwise. Same thing here, the GT3 doesn't handle better than the Z06, its' tires just "stick" better. I'm not complaining or making excuses, but the original poster did ask "how do they do it". With equal tires, the Z06 will run away from the GT3 on a road course. But what do you expect when you go against a "sports" car with archaic econobox Mcpherson struts for the front suspension ...and it's "only" $106K base. Put R-compound tires on the Z06 and watch out CGT!

And just for the record, the article said it ran a 7:47 during development. All other times were pure speculation and the 7:40 is pure BS with no links.

glass slipper

Ignore him Andi, he obviously didn't read the article where it stated driving in the rain was at your own risk on those tires. You're correct, in the USA where liability is an issue, you'll never see these tires on a production car. There's also the wear bars in the tread and tread depth laws...if you have an accident in the rain due to slick tires and injure somebody, it's a felony! I slow down more than usual in the rain when I know I'm getting close to the wear bars.

On the other hand, he may not be smart enough to realize he can put whatever tires he wants on his car and stop running his "runcraps".

glass slipper

Yea, nothing but the best Mcpherson struts for the front suspension.

Rare ZO7

How do they do it?? Well they do have the advantage of NO driveshaft. Its simply bolted to the transaxle. Where's the loss in power? And with excellent handling to boot. Just imagine if the Vette used other tires besides Runflats.

Lazerwolfe

MitchAlsup

High end sport bikes* often come with short lived very grippy tires for at least 10 years now. The 'regular' sport bikes get grippy medium lived tires.
[*] consider the Ducati 996 versus Ducati 996R--R gets the grippy ones, the nonR does not.

ivan111

The 997 GT3 adjustable suspension in its normal mode i as stiff as the old 996 setting but in Sport mode is so stiff that is recommended for just Track use.....

Mako7

Another thing to consider here is that the 997 GT3 is basically a near factory-built race car for the street. The C6Z is also of this ilk, but to a lesser degree (more creature comforts, softer edges). To put these cars on equal footing for the ring, the Z should have the benefit of T1-stiff suspension, different shocks, different seats, 150lbs of stripped luxury goods, and race rubber.

The 997 GT3 will likely set you back about $125k+ OTD when optioned. TEh 997 GT2 will be even better, and come with an OTD price of $225k.

So, these 2 P-cars definitely have my respect, but they also point out what a great deal the C6Z is.

AP

If they are using R-compound tires ... that is I consider that cheating ..

EuG

GT3 is almost cream of the crop of Porsche cars when it comes to road racing.
It’s pretty much close to the absolute best Porsche can come up with.

Very few Porsche models offer more performance:
CCG (hyper exotic, hyper price)
GT2?
GT3 RS (virtually a race car, isn’t it?)

If GT3 can’t beat essentially a “GT cruiser” Z06 at the Ring I bet Porsche fan-girls will be seriously pissed.

I fully expect a typical invasion of the usual Porsche cheerleaders, we all know here, into this thread with all the excuses and skepticism.
We’re waiting for you ladies