06-29-2020, 10:40 PM | #1 |
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These days you tune to something from the parts bin and call it new, rather than make something new for your new and specific application - that's even true with the "limited" and "hardcore" CS variant of our beloved Ms. I guess this is how things have been all along, if the F80/82 CS is any indication. But still it's a bit surprising, as I thought the upgrade to the adaptive suspension (from static ones from the lesser F87s) with the F87 CS would bring changes that's more dramatic, like a set of specifically tweaked springs.
According to this website, https://www.leebmann24.de/bmw-ersatz...1j31&og=99 The coil spring part # for the the M2 CS, Spring Front: 31337853271, shared with M2/M2 LCI/M2 Competition Spring Rear: 33537853275, shared with M2/M2 LCI/M2 Competition And of course EDC are carried over from the F80/82/83, albiet having a different tuning, Spring strut, EDC, front left : 31318008627 Spring strut, EDC, front right : 31318008628 Shock absorber for EDC, rear left: 33528008629 Shock absorber for EDC, rear right: 33528008630 Well...
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06-29-2020, 10:57 PM | #2 |
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After watching the new G8X development video, I'm not surprised at all. It seems they pick different dampers/shocks and springs that they already have and test them to find which one the engineers are happy with.
They must've settled with the F8X edc shocks and re-used the M2C springs and then do their calibrations and fine tuning accordingly.
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06-29-2020, 10:58 PM | #3 |
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06-30-2020, 02:27 AM | #4 |
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AUSf22 I'd kindly suggest not getting too excited into the M marketing video. This particular video virtually shows a traction control & damper tuning process that is very common and for every single vehicle, be it a Toyota Prius, or a 488 Pista. The video lost me completely when they say the "lightweight component" on the M2 CS is immediately felt when doing XXX.
Make no mistake I believe this little new M possibly will go down as the pinnale of the whole F8X generation, in terms of traditional M spirit which is the maximized track performance and none compromised every day usability. When valuing a special car, you have to consider a little more - technology (the way it's made, think the hand finishing of the movement of mechanical watch) and exclusivity (less shared parts - including interior & exterior trim and paint...damn...). In the end, whatever spring the F87CS comes stock, which sits too tall anyway because of clearance requirement, a lot of us would just put on M performance lowering spring, or even KW springs. I firmly believed for years for any car the lowering spring would throw off factory chassis tuning, but these days who knows...BMW themselves offer the same M performance HAS for F80, 82 and 83, while F80/82/83 suspension are different stock either hardware or software wise. I guess the adaptive M sleeve is really very adaptive...
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06-30-2020, 03:27 AM | #6 | |
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I found both videos extremely good to watch, it's always good to get an insight from those that are developing the product that we eventually have, don't know why they lost you... if anything, you are going to be a driving a product they had a huge say in so their feedback is probably the most credible
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07-08-2020, 10:51 PM | #8 |
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I also saw this similarly when comparing my LCI OG to a M2C. RealOEM lists the dampers and springs as the same part #.
The "better" suspension in the M2C is only due to a)F80 Front Strut Brace b)More static suspension sag due to 100+LBS c)Placebo due to not riding them back to back There is so much marketing fluf, when in reality, all the engineers go back and take 1-2 parts from the parts bin and refine the calibration. Just like the "solid" mounted rear sub frame on the M2C. If you read the tech doc on the F87, this has existed in the M2 since day 1. |
07-08-2020, 11:34 PM | #9 |
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Maybe they designed the entire series/platform M2, M2C and M2CS and parts they would share from day one.
Which explains my theory of why the marketing literature said the M2 N55 has a closed deck. It was a mistake and they were referring to the S55 that would be used in the M2C. |
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07-09-2020, 12:12 AM | #10 | |
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The eventual release of the C is a improvisation to the tightening emission law. In essence, you could say the C is a neutralized CS, rather than the CS is a dialed up C.
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07-09-2020, 04:41 AM | #11 | |
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My car is from 04/19 when the CS was still a rumour.
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07-09-2020, 04:45 AM | #12 | |
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Rubber bush is known crack/degrade overtime and a QEP type upgrade is to retrofit oem mid 2018 onwards poly bush instead.... More info on these F80b'post threads https://f80.bimmerpost.com/forums/sh....php?t=1543000 https://f80.bimmerpost.com/forums/sh....php?t=1628985
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