MFactory CF Drive Shaft

Redd · 01-25-2021, 12:20 AM

Over-revving as in the engine rpm climbs freely? Like how it would feel with clutch slip? How many rpms does it over-rev?

CF driveshafts will exhibit more elastic effect than a steel shaft would. Does the over rev feel like it's 'twisting' the shaft and then the shaft unwinds and catches up?

SYDAUSM3E92ZCP · 01-25-2021, 03:27 AM

Quote:

Originally Posted by Redd

Over-revving as in the engine rpm climbs freely? Like how it would feel with clutch slip? How many rpms does it over-rev?

CF driveshafts will exhibit more elastic effect than a steel shaft would. Does the over rev feel like it's 'twisting' the shaft and then the shaft unwinds and catches up?

Yes exactly...just like a clutch slip. Probably only about 300 or 400rpm but then quickly reverts to normal. Are you experiencing the same thing?

Redd · 01-25-2021, 03:38 AM

Quote:

Originally Posted by SYDAUSM3E92ZCP

Yes exactly...just like a clutch slip. Probably only about 300 or 400rpm but then quickly reverts to normal. Are you experiencing the same thing?

Nope I don't have any free revving with my CF DS. Any weird noises? Maybe it's some clutch slip.

Epoustouflant · 01-25-2021, 05:53 AM

A fellow member installed his cf ds + TTV lightweight flywheel. It is absolutely insane!

It's my plan as well.

Macpsi · 01-25-2021, 10:03 AM

With this solution you have to keep the factory guibo? Or can it be removed? I believe mine is on its way out.

Lienrocs · 01-25-2021, 11:16 AM

Quote:

Originally Posted by Macpsi

With this solution you have to keep the factory guibo? Or can it be removed? I believe mine is on its way out.

You keep the guibo that attaches to the transmission but it removes the center support bearing.

Redd · 01-25-2021, 06:52 PM

Quote:

Originally Posted by Macpsi

With this solution you have to keep the factory guibo? Or can it be removed? I believe mine is on its way out.

You absolutely want the giubo as most one piece shafts without a giubo will vibrate.

kyrix1st · 01-25-2021, 08:28 PM

Any ongoing group buy atm?

Epoustouflant · 01-25-2021, 09:21 PM

Quote:

Originally Posted by kyrix1st

Any ongoing group buy atm?

GB is over.

Redd · 01-25-2021, 09:42 PM

Quote:

Originally Posted by kyrix1st

Any ongoing group buy atm?

Email Michael over at YCW/MFactory. He may be able to still offer you GB price of there are units left from that production run.

SYDAUSM3E92ZCP · 01-26-2021, 03:57 AM

Quote:

Originally Posted by Redd

Nope I don't have any free revving with my CF DS. Any weird noises? Maybe it's some clutch slip.

Yes just a little clutch slip, can live with that. Aside from the "general" clunkiness, I occasionally get a large jolt/bang through the drive train when changing gear.....particularly into reverse. The overall positives far outweigh the bad, but just seeing if anyone experiencing the same things?

Redd · 01-26-2021, 06:01 AM

Quote:

Originally Posted by SYDAUSM3E92ZCP

Yes just a little clutch slip, can live with that. Aside from the "general" clunkiness, I occasionally get a large jolt/bang through the drive train when changing gear.....particularly into reverse. The overall positives far outweigh the bad, but just seeing if anyone experiencing the same things?

No bang going into reverse. No clunks compared to the stock driveshaft. I do get the jolt thru the drivetrain when doing WOT upshifts. That's just the elastic effect of the CF tube and one of the reasons I love the CF DS compared to the stock unit. It's just so much more raw to drive.

VAC_M3 · 02-16-2021, 04:30 PM

Recently installed my new Mfactory cf ds. The install was a ton of fun on jack stands

Recent track day I was consistently hitting 140 + mph on the straight. I didn't experience any issues with vibration. Everything felt great. Car is noticeably quicker to rev up and feels livelier. I have the TTV lightweight flywheel sitting ready to install which I will pair with the ds eventually.

armed_doc · 03-11-2021, 08:16 PM

Group buy is now active on EuroCon for the new V3 version if anyone is interested.

rhyary · 03-11-2021, 10:06 PM

This is a must have.
one of the best mod I did.

The-Traveler · 08-03-2021, 08:50 PM

Quote:

Originally Posted by armed_doc

Group buy is now active on EuroCon for the new V3 version if anyone is interested.

Any Canadian distributors?

Redd · 08-04-2021, 12:48 AM

Quote:

Originally Posted by armed_doc

Group buy is now active on EuroCon for the new V3 version if anyone is interested.

What delivery dates are u getting on that GB?

nycplumber · 08-04-2021, 09:41 AM

Quote:

Originally Posted by Redd

What delivery dates are u getting on that GB?

Do you have link to GB?

Adriano917 · 08-04-2021, 11:01 AM

Good luck getting one, its been at a stand still since Sept of 2020. I’ve been on the look out on the for sale section to see if one pops out.

neilum · 08-04-2021, 11:37 AM

Quote:

Originally Posted by Adriano917

Good luck getting one, its been at a stand still since Sept of 2020. I’ve been on the look out on the for sale section to see if one pops out.

This link is also dead - http://store.teammfactory.com/produc...nf=1&Model=BMW

MFactory · 08-04-2021, 12:26 PM

Just a quick update:

CV's/Joints will be finished this month. The carbon tubes are wound and just need cut to length now

After assembly, we will still need to balance and stress test them though, so looking around sometime next month should be ready to start shipping out to everyone.

We will only know how many units "spare" we have after we have finished assembling/testing them and then accounting for those sold in the group buys.

MPizza · 08-06-2021, 12:11 AM

Quote:

Originally Posted by MFactory

Just a quick update:

CV's/Joints will be finished this month. The carbon tubes are wound and just need cut to length now

After assembly, we will still need to balance and stress test them though, so looking around sometime next month should be ready to start shipping out to everyone.

We will only know how many units "spare" we have after we have finished assembling/testing them and then accounting for those sold in the group buys.

very exciting! thanks for the update

01-25-2021, 12:20 AM	#485
Redd Brigadier General 3900 Rep 4,165 Posts Drives: 2010 BMW E92 M3 Dakar Edition Join Date: Jul 2015 Location: Malaysia iTrader: (0)	Over-revving as in the engine rpm climbs freely? Like how it would feel with clutch slip? How many rpms does it over-rev? CF driveshafts will exhibit more elastic effect than a steel shaft would. Does the over rev feel like it's 'twisting' the shaft and then the shaft unwinds and catches up?
	Appreciate 0 Quote

01-25-2021, 05:53 AM	#488
Epoustouflant Banned 1164 Rep 451 Posts Drives: E92 M3 Join Date: Apr 2014 Location: Montreal iTrader: (0)	A fellow member installed his cf ds + TTV lightweight flywheel. It is absolutely insane! It's my plan as well.
	Appreciate 3 Lienrocs703.00 AceBeezy296.00 CurbBender'9071.50 Quote

01-25-2021, 10:03 AM	#489
Macpsi Private 24 Rep 79 Posts Drives: 11 E92 m3 6mt Join Date: Jan 2019 Location: VA iTrader: (0) Garage List 1997 Eclipse GST [0.00] 2002 Lexus IS300 [0.00] 2011 e92 M3 [0.00]	With this solution you have to keep the factory guibo? Or can it be removed? I believe mine is on its way out.
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01-25-2021, 08:28 PM	#492
kyrix1st Colonel 2362 Rep 2,362 Posts Drives: G87 M2; E92M3 MT&DCT; M3 euro Join Date: Sep 2014 Location: nyc iTrader: (0) Garage List 2004 BMW Z4 [0.00]	Any ongoing group buy atm? __________________ Pass me if you can.
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02-16-2021, 04:30 PM	#497
VAC_M3 New Member 17 Rep 12 Posts Drives: BMW E92 M3 Join Date: May 2020 Location: Vashon Island, WA iTrader: (0)	Recently installed my new Mfactory cf ds. The install was a ton of fun on jack stands Recent track day I was consistently hitting 140 + mph on the straight. I didn't experience any issues with vibration. Everything felt great. Car is noticeably quicker to rev up and feels livelier. I have the TTV lightweight flywheel sitting ready to install which I will pair with the ds eventually.
	Appreciate 3 911r891.00 Epoustouflant1164.00 chutak206.50 Quote

03-11-2021, 08:16 PM	#498
armed_doc New Member 8 Rep 10 Posts Drives: 2011 E92 M3 ZCP, Mineral White Join Date: Jan 2020 Location: SoCal iTrader: (0)	Group buy is now active on EuroCon for the new V3 version if anyone is interested.
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03-11-2021, 10:06 PM	#499
rhyary Colonel 1563 Rep 2,869 Posts Drives: 2013 M3 Join Date: May 2015 Location: Albany, NY iTrader: (0)	This is a must have. one of the best mod I did.
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08-04-2021, 11:01 AM	#503
Adriano917 09 M3 e93 VF650, e30 e85, Remus, Federal’s 595rs 205 Rep 329 Posts Drives: BMW M3 Join Date: Jun 2019 Location: El Paso, Tx iTrader: (0)	Good luck getting one, its been at a stand still since Sept of 2020. I’ve been on the look out on the for sale section to see if one pops out. __________________ 09 M3 E93 - VF650, AFD e30 e85, Remus Race, Federal’s 595 rs-pro’s.
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08-04-2021, 12:26 PM	#505
MFactory Major 581 Rep 1,421 Posts Drives: E92 M3 Join Date: Feb 2014 Location: San Dimas, CA iTrader: (2)	Just a quick update: CV's/Joints will be finished this month. The carbon tubes are wound and just need cut to length now After assembly, we will still need to balance and stress test them though, so looking around sometime next month should be ready to start shipping out to everyone. We will only know how many units "spare" we have after we have finished assembling/testing them and then accounting for those sold in the group buys.
	Appreciate 2 ygoz70.50 akkando5864.50 Quote