Carbon Fiber Driveshaft - M3 Forum 2010 2009 BMW M3 2008 BMW M3 BMW E90 M3 E92

JuniorDee · 04-10-2008, 01:46 PM

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.

!Xoible · 04-10-2008, 01:52 PM

OT question: why would you want a CF one? i imagine you'd want a heavy one, not a light one?

jaybird124 · 04-10-2008, 02:00 PM

Less weight means less rotational inertia = faster throttle response and acceleration

JuniorDee · 04-10-2008, 02:18 PM

Quote:

Originally Posted by jaybird124

Less weight means less rotational inertia = faster throttle response and acceleration

correct

essentially the ideal thing would be to lighten the entire drive train all the way to the tires. clutch, flywheel, light weight drive shaft, rotors, wheels, and tires.

!Xoible · 04-10-2008, 02:24 PM

so why do people have heavier knobs?

SS32 · 04-11-2008, 09:11 AM

Quote:

Originally Posted by mantis

so why do people have heavier knobs?

Makes for an easier throw. Once you get weight moving, it takes more to stop it. So once you start the shift, the knob helps put it in gear. I was shocked at how much difference a weighted knob made. And a weighted knob isn't rotating mass, so it has no effect on the rest of the drivetrain.

Epacy · 04-12-2008, 12:46 AM

LOL, a couple of the questions in here are sad.

Robert · 04-12-2008, 01:25 AM

I am thinking about replacing my front and rear windows with CF. I believe it can save anywhere from 5 to 10 lbs

KonigsTiger · 04-12-2008, 02:12 AM

Don't forget to replace the cylinders with CF as well.

lucid · 04-12-2008, 08:40 AM

I just bought a set of CF tires...

Seriously, how much of a reduction in the moment of inertia of the driveshaft are we talking about by going CF and what is the significance of that in relation to the moment of inertia of the other rotating masses? I am pretty sure the M3 has a hollow shaft and they've done whatever they could have to keep "I" of the crankshaft low. Lighter wheels seem like a more obvious target to me rather than the shaft.

K3N R3D · 04-12-2008, 09:46 AM

My car will have CF valve stems. Less rotational inertia means better handling lol

jm1234 · 04-12-2008, 12:28 PM

Quote:

Originally Posted by JuniorDee

I contacted www.pstds.com and they said they can custom make a CF drive shaft in 2-3 weeks for ~$1000.

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

Isn't $1,000 the negative...

Jack28 · 04-14-2008, 08:01 PM

Speaking of CF Driveshafts, Here is TazaM3 with his 1000hp
Turbo'ed E46 M3 with a Broken CF DriveShaft!

lucid · 04-14-2008, 08:45 PM

And they think it is funny?

Jack28 · 04-14-2008, 09:00 PM

Quote:

Originally Posted by lucid

And they think it is funny?

Tell me about it!

OzStriker · 04-14-2008, 10:59 PM

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

Thanks!

SS32 · 04-14-2008, 11:02 PM

Quote:

Originally Posted by lucid

And they think it is funny?

If you could piss away tens of thousands of dollars on the car like he has, you would laugh too.

lucid · 04-14-2008, 11:13 PM

Quote:

Originally Posted by cowmoo32

If you could piss away tens of thousands of dollars on the car like he has, you would laugh too.

No, I wouldn't.

Robert · 04-15-2008, 12:54 AM

I found it funny. L O L

04-10-2008, 01:46 PM	#1
JuniorDee Lieutenant Drives: the speed limit Join Date: Apr 2007 Location: hanging with Elian Posts: 591 iTrader: (0)	Carbon Fiber Driveshaft 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.

04-12-2008, 12:46 AM	#7
Epacy Reincarnated Drives: 02 Maxima SE Join Date: Mar 2007 Location: IL Posts: 4,217 iTrader: (0) View Epacy's Garage	LOL, a couple of the questions in here are sad. __________________ Pearl Bliss

04-12-2008, 02:12 AM	#9
KonigsTiger Racying Dynamics Drives: E92M3 RS46 Club Sport, others Join Date: Jan 2008 Location: Dweller Posts: 4,413 iTrader: (0)	Don't forget to replace the cylinders with CF as well. __________________ ==================================================

04-12-2008, 08:40 AM	#10
lucid Major General Drives: Z4M coupe; E30 M3 track Join Date: Apr 2007 Location: USA Posts: 7,591 iTrader: (0) View lucid's Garage	I just bought a set of CF tires... Seriously, how much of a reduction in the moment of inertia of the driveshaft are we talking about by going CF and what is the significance of that in relation to the moment of inertia of the other rotating masses? I am pretty sure the M3 has a hollow shaft and they've done whatever they could have to keep "I" of the crankshaft low. Lighter wheels seem like a more obvious target to me rather than the shaft. __________________ Track vids: http://www.youtube.com/user/nhmse92m3#p/u Last edited by lucid; 04-12-2008 at 10:53 AM.

04-12-2008, 09:46 AM	#11
K3N R3D Lieutenant Major Drives: E92 M3 on order... Join Date: Mar 2007 Location: West Palm Beach Posts: 1,263 iTrader: (0)	My car will have CF valve stems. Less rotational inertia means better handling lol __________________ ------------------------------------------------ When the voice and the vision on the inside, become more profound than the opinions and pictures on the outside...You've mastered your life!

04-10-2008, 01:52 PM	#2
!Xoible Banned Drives: .... Join Date: Nov 2006 Location: . Posts: 1,669 iTrader: (4) View !Xoible's Garage	OT question: why would you want a CF one? i imagine you'd want a heavy one, not a light one?

04-10-2008, 02:00 PM	#3
jaybird124 Private Drives: '08 335i 6-speed MT Join Date: Nov 2005 Location: Florida Posts: 61 iTrader: (0)	Less weight means less rotational inertia = faster throttle response and acceleration

04-10-2008, 02:24 PM	#5
!Xoible Banned Drives: .... Join Date: Nov 2006 Location: . Posts: 1,669 iTrader: (4) View !Xoible's Garage	so why do people have heavier knobs?

04-12-2008, 01:25 AM	#8
Robert Major General Drives: 135i, current is350 Join Date: Aug 2005 Location: Socal Posts: 5,489 iTrader: (1)	I am thinking about replacing my front and rear windows with CF. I believe it can save anywhere from 5 to 10 lbs

04-14-2008, 08:01 PM	#13
Jack28 HUSTLER Drives: E46 M3 - E92 M3 Join Date: May 2006 Location: So/Ca Los Angeles Posts: 932 iTrader: (0)	Speaking of CF Driveshafts, Here is TazaM3 with his 1000hp Turbo'ed E46 M3 with a Broken CF DriveShaft! __________________ E92 M3 ZCP- Coming Soon AW/FR w/Extended Leather) Packages: ZCW, ZPP, ZTP, ZCP 19's, PRS, PDC, EPS, Fully Loaded E46 M3 - AW/IR 6 Spd, Fully Loaded. 19'' BBS LM's GunMetal, V-CSL Bmpr, Botld, Diff, CSL IR Center Counsel, V-GTR Hood, Dixis Ti 76mm, Meisterschaft Ti Sec. 1&2, EvoSport Headers, CAI, D/A Chip, tck d/a

04-14-2008, 08:45 PM	#14
lucid Major General Drives: Z4M coupe; E30 M3 track Join Date: Apr 2007 Location: USA Posts: 7,591 iTrader: (0) View lucid's Garage	And they think it is funny? __________________ Track vids: http://www.youtube.com/user/nhmse92m3#p/u

04-14-2008, 10:59 PM	#16
OzStriker Captain Drives: BMW E92 M3, Ducati 1198S Join Date: Sep 2007 Location: Melbourne Posts: 884 iTrader: (1) View OzStriker's Garage	Can someone please post a link to the CF tyres, windows and pistons? Thanks! __________________ BMW E92 M3 6MT, G-Power SKII supercharged, RPi GT exhaust + 100cel cats, Brembo 380mm BBK, BMW Performance steering wheel, LUX H8 angel eyes, CF CSL boot, Hamann CF diffuser, Vorsteiner CF lip, CF grilles, CF gills, CF bonnet vents, BMW Performance stripes, VMR V713 wheels, H&R spacers, Eibach lowering springs.

04-15-2008, 12:54 AM	#19
Robert Major General Drives: 135i, current is350 Join Date: Aug 2005 Location: Socal Posts: 5,489 iTrader: (1)	I found it funny. L O L