CF drive shaft
Racer
Joined: Sep 2003
Posts: 264
Likes: 7
I have one installed on my Z06. To be honest I can't tell the difference between it and the stock DS but I have yet to dyno it since it was installed. The engine revs up and down quicker but some of this may be due to the Excedy twin disk clutch and flywheel.
YMMV
YMMV
Former Vendor
Joined: Aug 2001
Posts: 1,756
Likes: 0
From: Atlanta GA
Originally Posted by Z_fox
I have one installed on my Z06. To be honest I can't tell the difference between it and the stock DS but I have yet to dyno it since it was installed. The engine revs up and down quicker but some of this may be due to the Excedy twin disk clutch and flywheel.
YMMV
YMMV
This might help:
The reason the rubber couplers break is because the drive shaft is whipping and the rubber couplers are being stressed in directions that they were never designed for.
The aluminum couplers vibrate because they can not absorb the "whipping" of the drive shaft so the vibration is magnafied.
Here are the true weights that I just weighed last night:
Stock = 5.26 pounds
Carbon = 4.56
Difference = .7 pounds
The benefit does not come from weight reduction but from it being stiff, straight and strong enough to resist the "jump rope" effect.
Each degree of deflection causes a more out of balance condition. A curved driveshaft is not balanced, and curved is what it is at high rpms
Premium Supporting Vendor
Joined: Oct 2001
Posts: 8,392
Likes: 572
From: Dallas Tx
St. Jude Vendor Donor '03-'04-'05-'06-'07-'08-'09-'10-'11
Originally Posted by u luz
.7 lbs doesnt seem like its worth 1200.00 to me.....buy a lightweight flywheel and you will see a big difference...
It is like comparing a Chrome molly roll bar to a mild steel bar, or Stainless steel headers to mild steel. Or steel wheels to alum or Mag wheels.
There is value in the material because the driveshaft problems arise from the flex in the thin,light aluminum stock drive shaft.
And one more benefit is that the energy spent spinning a "wobbly" aluminum shaft can now be directed to the rear wheels.
Hope that helps.
Lou G
