11-13-2019, 08:03 AM | #45 | |
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They have a diff that can lock from 0-100% that's it. This is already awesome as it helps you corner harder without the drawbacks of a fixed ratio diff, M2C is super easy to drift stock BTW. Im a complete noob and this was me on the 1st time out on the drift track. https://drive.google.com/file/d/1xaU...gSezGC3Qb/view |
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11-13-2019, 08:48 AM | #46 | |
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11-13-2019, 09:10 AM | #47 |
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That's about 200 lbs of fuel. A reason why the tanks are so small on these cars is because, I'm thinking, BMW is very aware on how heavy the M2 is on its own. We only add 75 lbs when filling up (assuming it's 12.5 gallon capacity).
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11-13-2019, 09:42 AM | #48 | |
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11-13-2019, 12:00 PM | #50 |
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I am curious how much shop support you require for that car. Starts at 95K EU.
Do you need air compressor for jacks, tire change, etc... shop to change the springs. Can you have it for track days. Instead of a series of racing. How much tools do you need to run it successfully, fuel filling.? So interested in it. It makes sense. |
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11-13-2019, 08:04 PM | #51 | |
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11-20-2019, 12:18 PM | #52 | |
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12-10-2019, 09:17 AM | #54 | ||
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Current '22 X3M LCI.. |
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12-10-2019, 09:43 AM | #55 |
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The M2 CS Racing in the video below your comment has the adaptive headlights. Not sure if they have full functionality, but they have the hexagonal angel rings.
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12-10-2019, 10:01 AM | #56 | ||
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Anyways, on the subject of LSDs; I've also notice that the Porsche GT3 uses a standard locking diff, instead of their renowned torque-vectoring unit they currently offer. I believe torque vectoring is superior to a LSD in both applications. However, It's more complex, which means more expensive and (maybe) failure prone. Racing is expensive enough as it is, I think teams don't want to deal with torque vectoring differentials at this point in time. Whom ever at M Motorsports that writes the CS-R technical specs has decided to include a "regular" LSD to keep things simple. Racing series will do this all the time to keep the series competitive. I tried to find a source on this but couldn't. Maybe someone else can. I believe a racecar with a LSD would go around a corner (even a slow one) faster than a road car with torque vectoring because of the better tires and lower weight of the race car. |
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12-10-2019, 12:11 PM | #57 | |
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I'd guess dealers could address basic services, e.g., oil, brake fluids, anything you didn't want to DIY. Anyone have practical info? Will BMW sell to DE guys?? If so, delivery protocol?
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12-11-2019, 03:57 AM | #58 | |
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The M diff IS NOT TORQUE VECTORING!!!! it is VARIABLE LOCKING. These are two different things. Torque vectoring is what a Focus RS rear diff does, it can individually control how much torque goes to each rear wheel. The M diff is variable locking so it can decide how much and when to lock "freely" compared to a normal mechanical locking diff which can only do so when the speed differential between the wheels reaches whatever preset. Complexity/cost/rules/performance could be a reason for not including it in the CS racing. Coming back to your original point and my question. Where did you read that the M2 has brake based torque vectoring? I would be curious to know if the M2 has this as I have not seen it anywhere and was part of what made my Focus RS handle great but overheat the brakes way too quickly on track.
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12-11-2019, 07:07 AM | #59 |
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Found a channel to inquire... Can be purchased by DE, SCCA, etc. guys. Contact sending me maintenance schedule and other practical info.
U.S. intro & pricing to occur at the 24 hrs of Daytona next month. Eh.
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12-11-2019, 07:15 AM | #60 | ||
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The main difference is that Active M diff only transfer torque from slower to faster. The M diff is a basically a typical LSD, say a clutch-type, where the clutches, and therefore amount of lockup, are electronically controlled instead of passively activated based on the difference in speed between the two wheels on an axle, like say on a AWD vehicle or an EV. That means that they can control when and how much to lock up but by different means. It's basically the same principal of being able to disturbing torque in either direction, via the locking method. Perhaps I should of been a little clearer. In addition, BMW also states that it also liberally uses the DSC system to distribute torque. Hence my suggestion that it uses the brakes also to bias the distribution. I did not mean the M2 has only a brake-based torque-distribution like the standard vehicles but more of assistance from the brakes, based on when the computer determines its needed, in addition to the clutch locking diff. |
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12-11-2019, 09:10 AM | #61 | |
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Your confusing the 4wd/AWD M models with the RWD M models And your wrong vis a vis the diff. From the C&D article "Proper go-fast torque vectoring requires at least one overdrive gear in the differential (though often there are two) capable of spinning the wheels faster than if they were driven through a conventional diff." --> the M Diff does not have this hence not torque vectoring https://www.caranddriver.com/feature...-test-feature/ and from BMW themselves who say variable LOCK not TORQUE distribution. "The M Differential distributes the drive torque evenly to both rear wheels and compensates for the rotational speed difference." https://www.bmw-m.com/en/topics/maga...ferential.html
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12-11-2019, 09:22 AM | #62 | |
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BMW, if you're listening, please make the price $74,999.
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12-11-2019, 09:28 AM | #63 |
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That's a good one... a BMW factory race car for the masses.
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12-11-2019, 10:11 AM | #64 | ||
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As oppose to a standard, non-electronic locking diff where percentage of maximum lockup is already predetermined. |
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12-11-2019, 10:35 AM | #65 |
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We can hope!
In any event, it would be nice to get confirmation on pricing so people can decide if they're in or out...my F80 lease is up at the end of March, so I really need to know.
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12-11-2019, 10:50 AM | #66 | |
Luxury at the redline :)
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