Any 997's out there with aftermarket wheels yet?
#31
Rennlist Member
![Default](https://rennlist.com/forums/images/icons/icon1.gif)
25lbs is about average for a 19" cast one-piece or forged three-piece performance wheel, with a forged one-piece being in the low-20s. The 18" 996 Carrera thin-spoke wheel is unusually light at about 20lbs; I'd guess the 19" lobster forks are between 22-25lbs.
While the TechArts, at 28lbs (for a 20"?), are definitely heavy for a cast wheel, it isn't the weight that significantly diminishes performance. Tires are part of the suspension, and such a low profile virtually eliminates sidewall flex to the detriment of handling.
While the TechArts, at 28lbs (for a 20"?), are definitely heavy for a cast wheel, it isn't the weight that significantly diminishes performance. Tires are part of the suspension, and such a low profile virtually eliminates sidewall flex to the detriment of handling.
#32
![Default](https://rennlist.com/forums/images/icons/icon1.gif)
![](http://img229.exs.cx/img229/4079/20zoll000514lo.jpg)
but they look so good .. how much reduced preformance .. I drive hard but only go to the track every year are so
low profile virtually eliminates sidewall flex to the detriment of handling
#33
Rennlist Member
![Default](https://rennlist.com/forums/images/icons/icon1.gif)
Ride comfort and risk for wheel damage with such a low profile tire are more significant sacrifices than the performance. Regardless of the wheel/tire combo, if you're driving these cars at their limits on public roads, you're risking lives.
The CGT has 19s and 20s to fit over the massive 15" brake rotors with huge calipers, front and rear. The 911S only has 13" rotors.
The CGT has 19s and 20s to fit over the massive 15" brake rotors with huge calipers, front and rear. The 911S only has 13" rotors.
#36
![Default](https://rennlist.com/forums/images/icons/icon1.gif)
I recently test drove a 987S with 19-inch Carrera S wheels. I had low expectations of the 19s, but was really surprised by the ride quality and lateral grip. Both were superb. Porsche has clearly designed the 987/997 chassis and suspension with these larger wheels in mind.
Using these wheels on the 987/997 isn't the same as doing so on a 986/996 or 993. While I understand the points about appearance vs. performance, there's always a trade off (additional weight vs. lateral stability). Alois Ruf equips his cars with 19s, and no one's calling him a poser.
That said, wheels eventually have to a reach a limit in size...else we'll all be driving wagons!
Using these wheels on the 987/997 isn't the same as doing so on a 986/996 or 993. While I understand the points about appearance vs. performance, there's always a trade off (additional weight vs. lateral stability). Alois Ruf equips his cars with 19s, and no one's calling him a poser.
That said, wheels eventually have to a reach a limit in size...else we'll all be driving wagons!
![Wink](https://rennlist.com/forums/images/smilies/wink.gif)
#37
Instructor
Join Date: Jan 2005
Location: Northumberland, UK
Posts: 108
Likes: 0
Received 0 Likes
on
0 Posts
![Default](https://rennlist.com/forums/images/icons/icon1.gif)
Originally Posted by Sean
I recently test drove a 987S with 19-inch Carrera S wheels. I had low expectations of the 19s, but was really surprised by the ride quality and lateral grip. Both were superb. Porsche has clearly designed the 987/997 chassis and suspension with these larger wheels in mind.
Using these wheels on the 987/997 isn't the same as doing so on a 986/996 or 993. While I understand the points about appearance vs. performance, there's always a trade off (additional weight vs. lateral stability). Alois Ruf equips his cars with 19s, and no one's calling him a poser.
That said, wheels eventually have to a reach a limit in size...else we'll all be driving wagons!![Wink](https://rennlist.com/forums/images/smilies/wink.gif)
Using these wheels on the 987/997 isn't the same as doing so on a 986/996 or 993. While I understand the points about appearance vs. performance, there's always a trade off (additional weight vs. lateral stability). Alois Ruf equips his cars with 19s, and no one's calling him a poser.
That said, wheels eventually have to a reach a limit in size...else we'll all be driving wagons!
![Wink](https://rennlist.com/forums/images/smilies/wink.gif)
Actually thats a good point - RUF's latest wheels for the 997 are 20" rear - 19" Front!!
#38
![Default](https://rennlist.com/forums/images/icons/icon1.gif)
Actually, I believe the tire aspect ratios have changed to compensate for the larger wheels, so the sidewall is the same (not any thinner than they were on the 18s). However, the weight is getting absurd, anyone remember the 14lb forged Fuchs 9x16s? Strong and light. Now we're talking 25+ with these 19s and 20s? Anyone who believes Porsche designed these cars for bigger wheels for performance reasons is kidding themselves. Yes they designed them for bigger wheels, but it was driven by public's demand for "bling" primarily. Again, take a look at racing - I don't see any 19s or 20s on GT3s, folks.
#39
![Default](https://rennlist.com/forums/images/icons/icon1.gif)
I don't see any 19s or 20s on GT3s, folks.
#40
![Default](https://rennlist.com/forums/images/icons/icon1.gif)
I read that the CGT wheels (19s front, 20 rear) are made of forged magnesium, and thus 25% lighter than their aluminum counterparts. So they're the best of both worlds.
Wouldn't it be great if Porsche passed this technology on to all its cars! BTW, won't surprise me at all if the 997 GT3 is equipped with 19s.
Wouldn't it be great if Porsche passed this technology on to all its cars! BTW, won't surprise me at all if the 997 GT3 is equipped with 19s.
#41
Addict
Lifetime Rennlist
Member
Lifetime Rennlist
Member
![Default](https://rennlist.com/forums/images/icons/icon1.gif)
Originally Posted by BHANE
How big are the rotors on the PCCB? Is it the same 13"?
Thanks in advance!
Thanks in advance!
![Stick Out Tongue](https://rennlist.com/forums/images/smilies/tongue.gif)
#42
Rennlist Member
![Default](https://rennlist.com/forums/images/icons/icon1.gif)
Originally Posted by Sobe
but you do see them on the CGT and I can not believe that performance compromises were made for bling ..... come on why is everyone so down on larger wheels .... If you owned a CGT would you change your wheels to 18" ..
The 997S is a different story. Slamming it on 20s may look 'tight', but you'll never see such a car turning fast laps at the track. It will be passed as if standing still by cars on 18" Kumhos, Michelin Pilot Sport Cups, Dunlop Super Sports, etc.
People buy these cars for different purposes. A 'baller' would shake his head at a 997S cruising Sunset on 18s, just as a serious track driver will shake his head at a 997S on 20s. From my posts, I think you can see why I'm "so down on larger wheels", but to each his own.
#43
Rennlist Member
![Default](https://rennlist.com/forums/images/icons/icon1.gif)
Originally Posted by Sean
Alois Ruf equips his cars with 19s, and no one's calling him a poser.
Last article I read on a true RUF car was the RGT RS (12/04 Excellence), and it had 18s.
#44
![Default](https://rennlist.com/forums/images/icons/icon1.gif)
People buy these cars for different purposes. A 'baller' would shake his head at a 997S cruising Sunset on 18s, just as a serious track driver will shake his head at a 997S on 20s. From my posts, I think you can see why I'm "so down on larger wheels", but to each his own.
#45
Instructor
Join Date: Jan 2005
Location: Northumberland, UK
Posts: 108
Likes: 0
Received 0 Likes
on
0 Posts
![Default](https://rennlist.com/forums/images/icons/icon1.gif)
Sobe,
No offence intended - just think you might want to think about changing your avatar - that image looks like an early "photochopped" Techart kit - makes it look like it has a beetle front end ! - think that some real photos are available now?
No offence intended - just think you might want to think about changing your avatar - that image looks like an early "photochopped" Techart kit - makes it look like it has a beetle front end ! - think that some real photos are available now?