driveshaft

[Hujan]

Originally Posted by squartus

I just got off the phone with them about my order, said would be 4 weeks before was built and shipped. Usually takes 3 but they are taking a week off for holidays. Said it was on the machine being tested at over 9k rpm as we spoke.
Will get back with everyone with pics/impressions after it gets here.

[modkrazy]

Originally Posted by Hujan

That's what I was hoping, too. I love the planted feeling of the solid subframe and diff bushings, but wish I could tone down the diff whine just a bit. How confident are we that the CF driveshaft would dampen some of that noise? If it does, I would do this in a heartbeat.

The DEFIV brace may be an alternative way to secure the diff that won't introduce the whine at the cost of a bit of weight.

I am also really interested in a DCT version of this. Here's hoping it materializes!

[Hujan]

Originally Posted by modkrazy

The DEFIV brace may be an alternative way to secure the diff that won't introduce the whine at the cost of a bit of weight.

Unfortunately, I don't think it will make a difference. I have both the subframe and differential bushings. All the diff whine is translated from the diff to the subframe and from the subframe into the cabin. I suspect the DEFIV brace (which also uses solid subframe mounts) would not change the situation. I've seen it reported that the brace does not add any NVH, but I suspect that's only true if you leave the subframe bushings stock.

[bigjae1976]

Interesting response from the vendor. So I guess there would be a lot of benefits beyond just lowering rotational mass.

I'd still paint mine...even if it is under the car.

[Rawl]

Would love to see a CF driveshaft option for the M3, as the M4 has.

http://f80.bimmerpost.com/forums/sho...d.php?t=921523

[Richbot]

Originally Posted by bigjae1976

Interesting response from the vendor. So I guess there would be a lot of benefits beyond just lowering rotational mass.

I'd still paint mine...even if it is under the car.

I would paint mine except for one small stripe in a spiral so it looks like a cf barber pole when it's spinning

Can't let that CF street cred go to waste in the daycare parking lot y0

[Hujan]

I sent a message to The Driveshaft Shop to ask about a CF shaft for the DCT cars. They say they need an exemplar to play with and some pics of the OEM driveshaft on the car to gauge clearances, etc.

Anyone local that can help them out? (I believe they are in North Carolina.)

[1MOREMOD]

Originally Posted by bigjae1976

Interesting response from the vendor. So I guess there would be a lot of benefits beyond just lowering rotational mass.

I'd still paint mine...even if it is under the car.

Hater. I'm gonna get cf doors, trunk, driveshaft, headlights, roof, windows, helmet and underwear and send you a picture.

[BIGW0RM]

Originally Posted by gatorfast

DRIVESHAFT

Best show ever.

[gatorfast]

Originally Posted by ILSMKU

Best show ever.

Agreed!!

[bigjae1976]

Originally Posted by 1MOREMOD

Hater. I'm gonna get cf doors, trunk, driveshaft, headlights, roof, windows, helmet and underwear and send you a picture.

I guess you're gonna overlay your winky in CF as well. You'll be the CF version of Goldmember

[ashtaron14]

Originally Posted by bigjae1976

I guess you're gonna overlay your winky in CF as well. You'll be the CF version of Goldmember

[squartus]

My carbon fiber DS just came in today, I will let you guys know what I think after I install it. I should have the free time to do so in a day or two.

[BIGW0RM]

Originally Posted by gatorfast

Agreed!!

Such BS they have no new version or replacement show. TV sucks ass these days.

[MMAJNKE]

Originally Posted by squartus

My carbon fiber DS just came in today, I will let you guys know what I think after I install it. I should have the free time to do so in a day or two.

Price on this part?

[squartus]

With shipping was $1431.00

[OM VT3]

Anything for dct?

[squartus]

They don't have one yet for DCT but I think plan on it in the future.

[ashtaron14]

Originally Posted by squartus

My carbon fiber DS just came in today, I will let you guys know what I think after I install it. I should have the free time to do so in a day or two.

Wonderful! Do you have diff bushing or subframe bushing upgraded?

[squartus]

Yes I have solid derlin rear diff mounts, and race engine mounts. One of the things I want to see is if the new drive shaft pulls out some of the rear diff noise because of how sound/vibration deadening carbon fiber is.

[Richbot]

Awesome. Please get weights of the whole assembly compared to whatever it eliminates/replaces from the stock DS!

[Hujan]

Originally Posted by leigh

Anything for dct?

Originally Posted by squartus

They don't have one yet for DCT but I think plan on it in the future.

As I posted earlier in this thread, they are open to it, but need to see a shaft off a DCT car and pics of the trough for the driveshaft. Here was my prior post:

Originally Posted by Hujan

I sent a message to The Driveshaft Shop to ask about a CF shaft for the DCT cars. They say they need an exemplar to play with and some pics of the OEM driveshaft on the car to gauge clearances, etc.

Anyone local that can help them out? (I believe they are in North Carolina.)

Originally Posted by squartus

Yes I have solid derlin rear diff mounts, and race engine mounts. One of the things I want to see is if the new drive shaft pulls out some of the rear diff noise because of how sound/vibration deadening carbon fiber is.

Congrats on getting your driveshaft, squartus. I am interested in it for the exact same reasons as you. Good luck with the install. Definitely looking forward to your feedback re: the diff whine.