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Anyone have the corner weights on the 997 2rs and the 7.2rs for comparison? If the 997s have a similar weight distribution between the cars like the 991, that might be a good reason why the 3rs has usually been considered the better handling car and even all the 991 chassis tricks (e-diff, rws etc) have not managed to overturn that. |
Originally Posted by isv
(Post 15243900)
Anyone have the corner weights on the 997 2rs and the 7.2rs for comparison? If the 997s have a similar weight distribution between the cars like the 991, that might be a good reason why the 3rs has usually been considered the better handling car and even all the 991 chassis tricks (e-diff, rws etc) have not managed to overturn that. |
https://cimg2.ibsrv.net/gimg/rennlis...8b29e3d79.jpeg
https://cimg1.ibsrv.net/gimg/rennlis...24fb2883a.jpeg Appreciate all the advice and ideas. I wish Manthey was here to set my car up but we will have to make due with dealer stock setup. Adjustments can be made to final outcome based on what you think it means. We are loaded and heading up soon! Weather looks promising and tires are good to go. I will keep fuel and water topped off for additional weight up front and am accepting volunteers to sit in frunk for additional ballast!! May the best car win!! Been great hearing from everyone!!! |
Awsome tread, great entertainement
THANKS for doing this! |
Originally Posted by SCCAForums
(Post 15242926)
Can someone translate the DYNO readings/paragraph?
Best Regards, Dave |
Originally Posted by Jean
(Post 15243925)
997 GT2RS: Front 37%/ Rear 63%
Guess I should also have stuck with the Titanium cage instead of the ‘authentic’ Steel one... anyway, looking forward to the test SDGT3. Well done for sorting, and it will be interesting to get feedback from the driver, as well as the lap times. |
Originally Posted by rosenbergendo
(Post 15244139)
Is that 519 at the wheels? If so that is more ike 555-560 hp at at the crank!!!!!
BTW, I have here both sportautos that have GT2RS and .2 GT3RS in Supertest. Measured weights in kg with full tank (both 90l) are: GT2RS / GT3RS FL: 299 / 303 FR: 268 / 274 RL: 457 / 419 RR: 489 / 447 Total: 1513 / 1443 What's interesting, GT3RS has more downforce than GT2RS: rear wing at delivered -1 deg @ 200 km/h total df is 143 vs 107 kg. Or rear wing at performance setting (-5 vs -3 deg) @ 200km/h (F/R) 64/136 kg vs 49/93 kg. |
Originally Posted by pete95zhn
(Post 15244278)
No, its 519 crankhp, and the car is the new 991.2 GT3RS
BTW, I have here both sportautos that have GT2RS and .2 GT3RS in Supertest. Measured weights in kg with full tank (both 90l) are: GT2RS / GT3RS FL: 299 / 303 FR: 268 / 274 RL: 457 / 419 RR: 489 / 447 Total: 1513 / 1443 What's interesting, GT3RS has more downforce than GT2RS: rear wing at delivered -1 deg @ 200 km/h total df is 143 vs 107 kg. Or rear wing at performance setting (-5 vs -3 deg) @ 200km/h (F/R) 64/136 kg vs 49/93 kg. Without driver ballast, but still 80kg heavier at rear than a 3RS, and less downforce! is that a non- Weissach 2RS? |
Originally Posted by Footsoldier
(Post 15244307)
good info on baseline, non-Manthey cars there, thanks. Without driver ballast, but still 70kg heavier at rear than a 3RS, and less downforce! is that a non- Weissach 2RS? It seems to be Weissach-Pack car, -29,5 kg according to the story. And I corrected some math... ;) |
Originally Posted by Footsoldier
(Post 15244307)
good info on baseline, non-Manthey cars there, thanks. Without driver ballast, but still 80kg heavier at rear than a 3RS, and less downforce! is that a non- Weissach 2RS? |
Originally Posted by pete95zhn
(Post 15244441)
It seems to be Weissach-Pack car, -29,5 kg according to the story. And I corrected some math... ;)
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Originally Posted by Footsoldier
(Post 15241422)
so, I was a pro driver, but unfortunately more than two decades ago!
even allowing for my age-addled brain, I can tell you that the 2RS on Cup 2 does not do anything quite as well as a 3RS until it can stretch its legs on full throttle. I’ll be surprised if your guy thinks any different, but let’s see. It’s also, genuinely, the first road car I’ve found it hard to get on top of within a few laps. It’s limits are very high but it’s also very twitchy on the way there, so limit is not that accessible. Of course someone younger and still racing will get there quicker, as they can pull back from the edge rather than build up to it. but end result I reckon will still be similar. A stock car is only a few secs quicker than a 3RS. It’s too soft and not got enough damper control, as I think it’s set to allow people of different abilities to drive quickly on the road (autobahn). On a road, at lower limits it’s mega; at max on track it pitches and rolls too much, IMO, which doesn’t help you get round a corner or brake into it, I can see why Cup R or similar will bring the grip back in line with the grunt, but that’s not the case here. Anyway, happy to wait and see what happens and hear the driver feedback. |
Looking forward to the results. Thanks OP for doing this!
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Originally Posted by Manifold
(Post 15229558)
+1 on all of that. With equal tires, the GT2RS may win. Someone needs more skill in the art of bragging. ;) I was just trying to be as obnoxious as possible to respond to the fact that there are people that own Porsche GT cars and actually think these cars can beat a frieken Cup Car. Ridiculous thought process at best. No hypercar (P1, LaFerrari, Porsche 918) would even come close to Cup Car. I imagine The Senna might have the best chance out of any street car. If you truly believe a Porsche GT car has a shot at beating a Cup Car (both driven at 10/10's) you should be required to immediately sell your GT car and be forced to drive a Prius for eternity. Having said that, this test does have "merritt" and certainly has entertainment value. It will be interesting to see exactly how much time and exactly where the GT2 gives up time to the Cup. |
The corners leading to the straights will be fun to see the GT2 pull out hard. Especially up the hills. Time came be made there.
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