03-20-2023, 08:24 PM | #1 |
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BMWBLOG - How BMW Mastered Making the New M2 Stiffer and Sharper
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03-20-2023, 09:03 PM | #3 |
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Finally something interesting to read
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03-20-2023, 10:23 PM | #5 |
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So it sounds to me like they could have seam welded the body vs spot welding it and that would have made it stiffer as well without the extra bracing adding bolt in bracing like a convertible uses is just that added weight
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03-20-2023, 10:28 PM | #6 |
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Remember when BMW provided data in regards to torsional rigidity? It now appears that they are ho-hum regarding it.
Last edited by T_U_D; 03-21-2023 at 09:48 AM.. |
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03-21-2023, 09:27 AM | #7 |
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Pepperidge farm remembers
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2023 G87 ///M2 (production began Jul 4th 2023) 2008 E90 335i | Silver Grey | Terra | Piano Black | 6MT | ZSP | ZKO | ZAT | ZKI | ZPL | ZKL | |
03-21-2023, 11:28 AM | #8 |
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Was this translated from another language or something? It seems like there's like 4 vague points and it just repeats itself. The car will be stiff? How stiff? Stiff. It wont have any chassis slop, so the suspension will work so it doesn't have chassis slop.
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03-21-2023, 12:04 PM | #9 | |
this is the way
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03-21-2023, 12:11 PM | #10 | |
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It is absurd that similar information is currently unavailable for the G87. Uncertain as to why so much is being left in the dark? |
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03-21-2023, 12:17 PM | #11 | |
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Honestly - to be able to rattle off statistics on a car and then claim you can't quantify torsional rigidity numbers is stupid... |
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03-21-2023, 12:19 PM | #12 | |
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03-21-2023, 12:22 PM | #13 | |
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HA! They generally do not do that. If they have some beneficial data worth bragging about then they will do it while throwing the previous generation under the bus. They are not at all concerned about past sales. It is all about how much they can move of the current model. |
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03-21-2023, 12:52 PM | #14 | |
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03-21-2023, 01:05 PM | #15 |
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03-21-2023, 01:53 PM | #16 |
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Dead
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03-21-2023, 05:17 PM | #17 |
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Can’t stop but wonder… well if you made the car lighter to begin with, you wouldn’t have to put in as much structural reinforcement to make the chassis stiffer (thereby making the car even heavier)
Not saying weight is everything, and if the G87 is like the G82, then it will still handle very well, but it seems like they created a problem by making the car heavy and their solution was to make it even heavier with reinforcements vs making the car lighter to avoid all this |
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03-21-2023, 07:13 PM | #18 | |
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Unfortunately, throwing more power into it is vastly less expensive than various weight reduction methods. BMW has admitted such. |
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03-21-2023, 07:21 PM | #19 |
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Here are a couple of reference points from a torsional rigidity perspective:
The G42 m240i xDrive CLAR platform is quoted as 12% stiffer than the F22: https://www.autozine.org/Archive/BMW/new/2er_G42.html The G20 CLAR platform is estimated at 36,625 Nm/degree and G30 at 37,750 Nm/degree here (based on other supporting info in the thread): https://g30.bimmerpost.com/forums/sh...21&postcount=2 The Z4M Coupe was 32,000 Nm/degree, considered one of the stiffest cars available at the time. I would think the G87 is likely in the 35,000 to 40,000 Nm/degree range. The stiffest road legal cars are probably Bugattis with 50,000 to 60,000 Nm/degree quoted for various models. |
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03-21-2023, 07:33 PM | #20 | |
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RS3 is 3,649 RS5 is 3,990 C63 is 4,600 C63 AMG is 3,902 |
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03-21-2023, 07:45 PM | #21 |
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03-21-2023, 08:12 PM | #22 |
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It will still be significantly heavier than any two door vehicle produced by a certain German manufacturer located in Zuffenhausen. Realistically, for the amount of money that a G87 CS or CSL will cost and only have the ZF 8 Speed auto, I much rather give that kind of coin to the aforementioned manufacture. |
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