02-06-2018, 12:52 PM | #1 |
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Carbon Drive Shaft vs. Steel
Hi All,
Just joined this forum and first post and all. I'm sure this topic has been covered and I've seen many articles of the change happening. However, I'm in the market for a M3 standard (non-comp pack) and very close to doing a factory order, however learning about the above and having driven a M3 for the weekend on a '16 plate over a year ago, I'm starting to wonder if it will be the same, and thinking whether I should get a used one instead. I was so impressed with the '16 plate that I want once that will drive just like it. I recently also test drove a comp pack with a steel drive shaft but was hard to make a comparison as it didn't feel like the standard in many ways anyway, which over many things it's not meant to. If I buy a new factory order standard M3, it will certainly come with a steel drive shaft, and I don't know how much this will affect the performance/weight etc. given what I've read that ''the steel driveshaft result in a beefier curb weight, but it would also mean more direct weight for the engine to move, making it less rev-happy than before, however slightly'' - so its the less rev happy bit that will be an issue for, if it noticeably exists. So question to you all, anyone here with a standard non comp M3 '67 plate onwards (as change came in Aug '17 I believe) notice any difference. Or does anyone have any direct sources or experience of driving both. Lengthy read I know, however would appreciate your input or any info that will help me decide as I need to order soon or continue looking for the ideal used. Thanks All in advance |
02-06-2018, 01:02 PM | #2 |
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Such a controversial question and lots of back and forth between the F80 forum.
http://f80.bimmerpost.com/forums/sho....php?t=1411862 If it were me, I'd still get it. 444HP is still going to be fun and if you feel like the steel shaft is such a significant difference--do some engine upgrades to pick up the pace. Honestly, I didn't even know it had a carbon driveshaft when I ordered my car--so bleh. Last edited by joooiiiiii; 02-06-2018 at 01:02 PM.. Reason: typo |
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02-06-2018, 01:09 PM | #3 |
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From what I understand the reason for the steel prop shaft is because the M3/4 needs an Otto particle filter. But I didn't think this was coming in until May.
What makes they are fitting steel prop shafts already?
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02-06-2018, 01:10 PM | #4 | |
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02-06-2018, 01:19 PM | #6 |
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I wasn't sure as many articles can be misleading, so I rang a dealer who is currently selling a 67' plate pre-reg standard which was built in Sep 2017 and registered Nov'17, he checked and got back to me and confirmed it had a steel drive shaft. But yeah I was too under this impression, so may have been another filter I don't know. Might need to check and verify with a few other sources I guess
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02-06-2018, 01:22 PM | #7 | |
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02-06-2018, 03:04 PM | #8 |
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Apparently people that have driven both 444hp and 425hp cars cannot tell a blind bit of difference!
Interesting about the steel prop shaft. Just been reading stuff on the web..... Yes you are correct that it would appear that they have already been installed into new cars. Didn't realise that. I think it's to make room for the forthcoming emissions filter.
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02-06-2018, 03:05 PM | #9 | |
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At least I've learned many interesting facts of the two reading through most of that |
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02-06-2018, 03:10 PM | #10 | |
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02-07-2018, 08:20 AM | #12 |
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Looking at RealOEM, December build F80 Still has the CFK propshaft introduced 3/1/16
I think the dealer was full of ?. Same looking at the M4. If the steel prop is now in production then it's very recent.
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02-07-2018, 12:08 PM | #13 | |
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I think it's pretty well known the early cars developed more torque in the lower gears. However, this made the car a little lary and hard to get the power down. Later cars have had software tweaks to limit torque slightly and make the car more drivable. It is possible to get a software update for older cars and many people have had this done. Virtually everyone say it's improved the car for them making it more drivable and gives the impression of much better traction although one or two liked the more aggressive delivery of the older car. I've got the later software in my 16 plate CP ... and I certainly wouldn't want any more torque, not in this car! I'm not entirely sure when this software update was put on the standard car, but deffo all CP's had the newer software.
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02-25-2018, 04:23 PM | #15 | |
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02-25-2018, 05:47 PM | #16 | |
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I believe the M3/M4 Lci's were built april 2017 onwards, but I would stand corrected if someone knows different. Rear lights are the dead giveaway. Pre-LCI, reverse lamps on the top of the cluster. LCI reverse lamps on the bottom.
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02-25-2018, 07:13 PM | #17 | |
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The M4 LCI only came out last year.
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02-25-2018, 07:36 PM | #19 | |
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I think with the M3 ending production soon, the M4 will be the only vehicles with a steel shaft. |
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02-26-2018, 01:38 AM | #20 | ||
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More changes made early 2017; my car is a March 2017 and has the new LED icons with the LCI black seat badges etc, there were more changes AGAIN in April 2017 when the iDrive 6 touchscreen was added. Crazy situation.
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02-26-2018, 05:18 AM | #21 |
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Yes they have done a lot to the M3, it had two main updates the first when the 3 series was LCI'd and the second when the 4 series was LCI'd.
On top of that various model years also brought in improvements/changes and on top of that the I-step level is constantly being changed.
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02-26-2018, 05:30 AM | #22 |
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Interesting, so the one I've put a deposit down on was registered May 2017. Seemed it had the new idrive - but didn't check it extensively was interested more in the performance. As mentioned having driven the April 2016 one - I found the drive of this 2017 one not as torque and rev happy, but kind of got the feeling as the car started to warm up it drove better (is that just in my head?), but not sure. It's the software updates that I question, as I actually prefer how the 2016 one drove, and wondering if the software updates mentioned by 'dopper99' above plays an effect to this?
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