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I know Pfadt racing sells one. Don't know anyone that has put one on their street Corvette.
 

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I looked into it but was told the weight savings were in the order of 1-2lbs and it added considerable drivetrain noise to the inside of the car. So I lost interest.
 

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I have heard that too about these, but never did fully understand why they would channel more drive train noise. Is it the normal drive shaft absorbs more of the sound and this one just channels it?
 

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I have heard that too about these, but never did fully understand why they would channel more drive train noise. Is it the normal drive shaft absorbs more of the sound and this one just channels it?
The factory driveshaft has a rubber coupler that dampens a lot of driveline sound.
 

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I looked into it but was told the weight savings were in the order of 1-2lbs and it added considerable drivetrain noise to the inside of the car. So I lost interest.

1-2 lbs is pretty good, think of making the flywheel lighter by 2 lbs, the car should accelerate faster with the lighter drive-shaft:thumbsup:
 

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1-2 lbs is pretty good, think of making the flywheel lighter by 2 lbs, the car should accelerate faster with the lighter drive-shaft:thumbsup:
Its not the same thing. First of all lightening the flywheel by 2lbs wouldn't be a huge change because the clutch/flywheel assembly weights 56pounds. A good lightweight clutch assembly will remove 20 of those pounds and THAT makes a difference.
But, most importantly, when it comes to rotating mass, what really matters is how much rotational inertia you are removing from the system; that is equal to the mass times the speed^2 times the radius. In something that has a very small diameter like a driveshaft, removing mass has almost no effect on the rotational inertia. Whereas on a foot diameter flywheel it has a much larger effect.

LG themselves posted that this is a modification intended to strengthen the drivetrain, not to boost performance, because the performance gains are not significant.
 

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Pfadt Carbon Driveshaft Specs

Hey guys! Just thought I would pop in and give some insight into our CFDS! Powerlabs you are absolutly correct, the carbon driveshaft alone is only 1.7 lbs lighter then stock.

Here is some additional information:

OEM "guibo" = 478g / each
OEM "guibo" hardware = 367g / per side
OEM driveshaft = 2,220g
OEM Total = 3,910g

Pfadt Flex Disk = 92g / each
Pfadt Flex Disk hardware = 134g / per side
Pfadt driveshaft = 1,405g
Pfadt Total = 1,857g

Total weight savings = 2,053g = 4.5 lbs
Reduction in Moment of Inertia = 13%

Quick story:
During some testing of our C6 Z06 before a enduro event one of our other drivers, who also drives a C6 Z06, inquired about the engine modifications. He was shocked when we said that everything in the engine from the intake air filter to the tip of the muffler cans was stock. He was so impressed with the throttle response that he thought it had to have a different cam and tune. In reality it was simply removing the compliance in the OEM driveshaft system that made the car feel more responsive.

Hope this sheds more light on this product. Please let me know if you have any questions!
:cheers:
 

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Hey guys! Just thought I would pop in and give some insight into our CFDS! Powerlabs you are absolutly correct, the carbon driveshaft alone is only 1.7 lbs lighter then stock.

Here is some additional information:

OEM "guibo" = 478g / each
OEM "guibo" hardware = 367g / per side
OEM driveshaft = 2,220g
OEM Total = 3,910g

Pfadt Flex Disk = 92g / each
Pfadt Flex Disk hardware = 134g / per side
Pfadt driveshaft = 1,405g
Pfadt Total = 1,857g

Total weight savings = 2,053g = 4.5 lbs
Reduction in Moment of Inertia = 13%

Quick story:
During some testing of our C6 Z06 before a enduro event one of our other drivers, who also drives a C6 Z06, inquired about the engine modifications. He was shocked when we said that everything in the engine from the intake air filter to the tip of the muffler cans was stock. He was so impressed with the throttle response that he thought it had to have a different cam and tune. In reality it was simply removing the compliance in the OEM driveshaft system that made the car feel more responsive.

Hope this sheds more light on this product. Please let me know if you have any questions!
:cheers:
That is great info! I have one quick question: How is the drivetrain noise and vibration inside the car with this driveshaft; is it noticeably louder?
 
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