Carbon Fiber Driveshaft

OM VT3 · 01-11-2016, 02:45 AM

Quote:

Originally Posted by ashtaron14

For the Fall-Line CF Shaft, the weights are attached by rivets, and there are some drilled holes in the adaptor plate (perhaps for balancing).

And this still vibrates?

ashtaron14 · 01-11-2016, 08:17 AM

Quote:

Originally Posted by OM VT3

Quote:

Originally Posted by ashtaron14

For the Fall-Line CF Shaft, the weights are attached by rivets, and there are some drilled holes in the adaptor plate (perhaps for balancing).

And this still vibrates?

It hums at speed cha

e92zero · 01-11-2016, 11:34 AM

That's a bummer.

I wonder if it has to do with the angle of attachment at the 2 ends? With the factory 2 piece, the attachment point between the drive shaft at the transmission case and the diff can be relatively straight out and using the CV joint for the angle change between the 2 ends. But with a one piece, we lost that. It becomes a straight line between those 2 points. And the transmission might not be in linear alignment with the diff (pointing straight at each other). Wonder if it would wear out something faster in the long run? Maybe a different transmission mount and diff mount to change the angle can address this? I am just guessing around here. Cheers.

wifesbimmer · 01-11-2016, 01:30 PM

I heard putting CF gasoline really helps to reduce weight...

TimberWolf_3063 · 06-29-2016, 12:55 AM

Quote:

Originally Posted by wifesbimmer

I heard putting CF gasoline really helps to reduce weight...

Don't forget CF wheels. Shelbys get them, why not us?

bmwfst1 · 10-05-2016, 09:14 AM

Quote:

Originally Posted by JuniorDee

Has anyone ever had a carbon fiber driveshaft on their previous cars? What were your opinions?

I contacted www.pstds.com and they said they can custom make a CF drive shaft in 2-3 weeks for ~$1000. You just need to take all the measurements that they require.

Since I have never read any negatives about it I just may follow through.

i just called them they said they dont make them.

bmwfst1 · 10-05-2016, 02:07 PM

i just called dss like 5 minutes ago and they said they need a dct car for about two weeks for clearance issues, because they made some dct shafts based on measurements people gave them and the shafts where returned because of fitment issues.

bmwfst1 · 10-05-2016, 02:08 PM

Quote:

Originally Posted by nholmes

No DCT offerings from DSS?

i just called dss like 5 minutes ago and they said they need a dct car for about two weeks for clearance issues, because they made some dct shafts based on measurements people gave them and the shafts where returned because of fitment issues.

aus · 11-03-2016, 11:32 PM

Bumping an old thread since there's a Group Buy going on now on a DRY CF shaft, so minimal glue vs. the wet type most others offer.

http://www.m3post.com/forums/showthread.php?t=1318054
.

bmwfst1 · 11-11-2016, 01:09 PM

i am on this group buy because there carbon ds maintains the stock guibo so there is no vibration.

Nazty Naze One! · 11-28-2016, 11:17 AM

whats the HP increase like? torque? 1/4 mile times?

mikasaur · 11-19-2018, 11:49 AM

Quote:

Originally Posted by OzStriker

Can someone please post a link to the CF tyres, windows and pistons?

Thanks!

01-11-2016, 11:34 AM	#47
e92zero Captain 212 Rep 875 Posts Drives: 2011 E92 BW Join Date: May 2010 Location: somewhere in US iTrader: (1)	That's a bummer. I wonder if it has to do with the angle of attachment at the 2 ends? With the factory 2 piece, the attachment point between the drive shaft at the transmission case and the diff can be relatively straight out and using the CV joint for the angle change between the 2 ends. But with a one piece, we lost that. It becomes a straight line between those 2 points. And the transmission might not be in linear alignment with the diff (pointing straight at each other). Wonder if it would wear out something faster in the long run? Maybe a different transmission mount and diff mount to change the angle can address this? I am just guessing around here. Cheers.
	Appreciate 0 Quote

01-11-2016, 01:30 PM	#48
wifesbimmer Lieutenant 158 Rep 540 Posts Drives: '20 X5 M50i, E92 M3, '16 F150 Join Date: May 2013 Location: Alberta iTrader: (0)	I heard putting CF gasoline really helps to reduce weight...
	Appreciate 0 Quote

10-05-2016, 02:07 PM	#51
bmwfst1 Pwrdbym 60 Rep 343 Posts Drives: red 2010 bmwm3 Join Date: Jan 2016 Location: maryland iTrader: (0)	i just called dss like 5 minutes ago and they said they need a dct car for about two weeks for clearance issues, because they made some dct shafts based on measurements people gave them and the shafts where returned because of fitment issues.
	Appreciate 0 Quote

11-03-2016, 11:32 PM	#53
aus Major General 890 Rep 9,032 Posts Drives: Odysse Join Date: Jul 2005 Location: Seal Beach, CA iTrader: (10)	Bumping an old thread since there's a Group Buy going on now on a DRY CF shaft, so minimal glue vs. the wet type most others offer. http://www.m3post.com/forums/showthread.php?t=1318054 . __________________ Let me get this straight... You are swapping out parts designed by some of the top engineers in the world because some guys sponsored by a company told you it's "better??" But when you ask the same guy about tracking, "oh no, I have a kid now" or "I just detailed my car." or "i just got new tires."
	Appreciate 0 Quote

11-11-2016, 01:09 PM	#54
bmwfst1 Pwrdbym 60 Rep 343 Posts Drives: red 2010 bmwm3 Join Date: Jan 2016 Location: maryland iTrader: (0)	i am on this group buy because there carbon ds maintains the stock guibo so there is no vibration.
	Appreciate 0 Quote

11-28-2016, 11:17 AM	#55
Nazty Naze One! Captain 57 Rep 619 Posts Drives: 2010 M3 E92 Join Date: Sep 2016 Location: Southern California iTrader: (1)	whats the HP increase like? torque? 1/4 mile times?
	Appreciate 0 Quote