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02-22-2021, 12:22 PM | #16 | ||
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02-22-2021, 04:48 PM | #17 | |
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Having an engine in the rear hampers the ability to take advantage of a proper diffuser. This is a common problem with their road cars as well. Take a look at the bottom of a 911 GT3/GT2 and compare that with its closest competitors from Lamborghini/Ferrari and it quickly becomes apparent. If this isn't a limitation or flaw I don't know what is. EDIT: I should qualify all of this with the fact that I absolutely adore the 911 and love everything about this new GT3, but to ignore inherent flaws is "fanboy-ism", for lack of a better phrase. |
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02-22-2021, 05:51 PM | #18 | |
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If they made the Cayman the premier car then they would make the Cayman more premium, so the 911 would be a shorter, different Panamara, which might not be as cheap as the Cayman, but it could possibly be done. Obviously they wouldn’t want to destroy the legacy of the 911 by moving it downstream or making it mid engine. The reality is that they don’t need to based on what they can deliver with the car as is. The rear engine setup has its advantages for packaging, but there is also more weight over the rear end too. It might be more polar, but it is also more stable at speed. Good and bad stuff.
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02-22-2021, 07:20 PM | #19 | |
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This really is no different than when BMW bent the rules to create the M3 GTR 20 years ago to try to dominate the GT category. The loophole was closed when the homologation rules was changed to requiring 100 cars + 1000 engines to be built to qualify for the GT category, and to no one's surprise BMW withdrew the car after less than a year of competing with it. |
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02-22-2021, 08:57 PM | #20 |
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I also think that a twin turbo flat six, or NA flat six in the GT3, is much more reasonable as a RR setup than say a Ferrari’s engine or a Lamborghini with a huge 6.5L V12 if that was RR instead of MR. Meaning, the RR setup in the 911 might not be such a flaw. Also worth noting is that the mid-FR platform in the Mercedes AMG GT Black series was the fastest around the ring just ahead of the MR Aventador.
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02-22-2021, 10:37 PM | #21 | |
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For land speed record runs, you add weight to the front of the car to make it more stable. If you make the mistake of adding weight to the rear of the car to "get more drive grip" on a car that's getting wheelspin and trying to go sideways at speed, you might be going for a ride, many have! |
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02-22-2021, 10:55 PM | #22 | |
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02-22-2021, 11:04 PM | #23 | |
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Aero at this time is mainly driven by underbody and diffuser development. RR packaging does not allow for large/competitive diffuser. If anything it just reinforces my point. I would also be curious to see how much of the improvements in lap time and speed between generations of 911 GT3 is down to chassis development and how much of it is due to tire technology. |
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02-22-2021, 11:24 PM | #24 |
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Thanks for posting. I think I’ll take 2.
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02-22-2021, 11:32 PM | #25 |
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With GTLM dead (and eventually GTE) I can't wait to see the new 911 GT3 R.
The Cup car looks and sounds fantastic in the meanwhile. |
02-23-2021, 12:11 AM | #26 | |
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I was thinking how a long wheelbase is good for stability at the cost of agility, but so is a polar distribution. It makes turning harder, so more stability.
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02-23-2021, 12:21 AM | #27 |
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I’m saying the RR GT2 RS, and the FR Mercedes AMG GT, which is not a V12 and AWD beast like the Aventador, both do just fine against a MR. The internet tends to give FF cars a hard time. They do the same to RR. Every platform has its benefits. Every platform can be made to be fast. Flawed? I don’t know. I think compromise is more accurate.
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02-23-2021, 06:31 AM | #28 | ||
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[img]http://speedhunters-wp-production.s3.amazonaws.com/wp-content/uploads/2013/09/12130006/Porsche_Moby_****_935-78-001.jpg[/img] Well this is stupid, you can't even have a link with "Moby ****" in the url! Pic below... Big wing way aft => aero stability needed for very fast RR car with aft c.g. But surely it must understeer in high-speed corners! Quote:
Most fun car I ever drove at the track was a Formula 440, a ~600 lb. 70" wheelbase single-seater with a snowmobile engine. It had about zero polar moment, very responsive of course but not twitchy or unstable, and easy recoveries Last edited by ZDan; 02-23-2021 at 07:12 AM. |
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