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      08-26-2015, 09:09 PM   #1
Ilia@IND
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Carbon Fiber driveshafts by Fall Line Motorsports!





As many M fans know, BMW uses composite materials in their own M cars sparingly- unlike Ferrari and Lamborghini that have the luxury of integrating carbon into the car’s chassis and construction, BMW must choose carefully where this still expensive material is applied. For this reason, one can simply follow BMW’s spending habits to see which components provide the most impact on performance. BMW has long applied carbon fiber in the bumper impact beams and more recently the roof panel, but has enjoyed the luxury of more liberal use of carbon fiber in the new M4. The new M car has a composite trunk, carbon roof, and most interestingly a carbon fiber driveshaft. We knew that offering a carbon fiber driveshaft solution for the E9x M3 cars would be an excellent choice, enabling E9x owners to modernize their cars.

The Fall Line Motorsports Carbon Fiber driveshafts are constructed with a proprietary wrapping process that enables extreme strength in torsion and aligns the fibers for the highest possible durability. Fall Line’s carbon driveshaft dramatically reduces driveline weight, removing rotational inertia for improved engine response.

Fall Line’s driveshafts use a dual filament winding process which carries over to the most demanding environments of Formula 1 and military applications. All bonding is done in an Autoclave pressure and temperature controlled environment, and the aluminum end yokes are machined from 7075 alloy for extreme strength. Each driveshaft is tested beyond 10,000 RPM and over 186mph, and is also tested to over 3600 foot pounds of torque. The Fall Line driveshafts are life cycle fatigue tested at over 1,400 foot pounds for stunning durability.

The Fall Line E9x M3 driveshaft weighs in at a scant 11.5lbs!









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Last edited by Ilia@IND; 08-27-2015 at 09:04 PM.
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      08-26-2015, 09:23 PM   #2
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      08-26-2015, 09:24 PM   #3
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Whats the stock shaft weight
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      08-26-2015, 09:25 PM   #4
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Also price?
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      08-26-2015, 09:26 PM   #5
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Our for sale thread will be up first thing tomorrow, along with stats about the OE driveshaft.
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      08-26-2015, 09:28 PM   #6
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I'm in love. Can't wait to see more details.
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      08-26-2015, 10:28 PM   #7
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If not in the budget now.... It will be! I been wanting one
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      08-26-2015, 11:02 PM   #8
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Oh boy!

I'm guessing there's 2 shafts because one is for 6MT and the other is for M-DCT?

I hope these are easy to install.
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      08-26-2015, 11:33 PM   #9
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Looks like it retains the stock flex disc? If so that's an approx. 10lb savings.
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      08-26-2015, 11:44 PM   #10
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Price?
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      08-27-2015, 01:33 AM   #11
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      08-27-2015, 01:47 AM   #12
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OMGGGGG

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      08-27-2015, 03:03 AM   #13
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<Citizen Kane slow clap>
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      08-27-2015, 08:58 AM   #14
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Don't get me wrong, everything is better with carbon fibre, but will this mod translate to actual performance gains?

JB
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      08-27-2015, 09:50 AM   #15
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Waiting for someone to post the price before I even bother to read anything more.
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      08-27-2015, 09:52 AM   #16
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Hnnnnggggggg
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      08-27-2015, 12:38 PM   #17
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possibilities of the z4m / e46 piece???
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      08-27-2015, 12:39 PM   #18
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Quote:
Originally Posted by Jbedford View Post
Don't get me wrong, everything is better with carbon fibre, but will this mod translate to actual performance gains?

JB


I would expect it to reduce parasitic drivetrain losses and help the motor rev faster.
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      08-27-2015, 01:37 PM   #19
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When will the DIY be posted!
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      08-27-2015, 04:21 PM   #20
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Quote:
Originally Posted by Ilia@IND
Our for sale thread will be up first thing tomorrow, along with stats about the OE driveshaft.
On with it!
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      08-27-2015, 09:03 PM   #21
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Quote:
Originally Posted by Hujan View Post
<Citizen Kane slow clap>
Quote:
Originally Posted by dparm View Post
Hnnnnggggggg
Thank you!

Quote:
Originally Posted by Jbedford View Post
Don't get me wrong, everything is better with carbon fibre, but will this mod translate to actual performance gains?

JB
Quote:
Originally Posted by dparm View Post
I would expect it to reduce parasitic drivetrain losses and help the motor rev faster.
Absolutely- most drivers will feel the difference.


Quote:
Originally Posted by Beedub View Post
possibilities of the z4m / e46 piece???
An E46 M3 application already exists.

Quote:
Originally Posted by ycb View Post
When will the DIY be posted!
Quote:
Originally Posted by roastbeef View Post
On with it!
Quote:
Originally Posted by pbonsalb View Post
Waiting for someone to post the price before I even bother to read anything more.
Apologies for the late evening post- I was off at AutoBahn track testing a few new components today.

http://www.m3post.com/forums/showthr...5#post18489215
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      08-27-2015, 09:55 PM   #22
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I had done this way back for my STI back in the day (and installed it with a friend). Definitely felt a difference in accel and lbs. But I probably wouldn't with my E90 unless I was planning on tracking it. Nice piece however
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