Lightweight driveshaft info please
03-23-2010, 12:22 AM
#1
Lightweight driveshaft info please I have a steel driveshaft made by "Spicer" (Dana Spicer) and it is HEAVY! I have my car down to around 2935 without me in it, and am running out of weight reduction. I already have drag brakes, k-member, anything that can be taken out..blah blah. Im just curious how much of a difference I would see doing a lighter driveshaft, aluminum, or carbon fiber. Any info is appreciated.
03-23-2010, 02:11 AM
#2
I have a steel driveshaft made by "Spicer" (Dana Spicer) and it is HEAVY! I have my car down to around 2935 without me in it, and am running out of weight reduction. I already have drag brakes, k-member, anything that can be taken out..blah blah. Im just curious how much of a difference I would see doing a lighter driveshaft, aluminum, or carbon fiber. Any info is appreciated.
I went from 3,618lbs to 3,490.
Went from a 150 shot to about a 75 -100 shot
Got the converter restalled
But also, the car never really left straight. I would say maybe a gain of a couple hundreths. Some guy said he picked up two tenths, but thats hard for me to believe.
03-23-2010, 11:34 AM
#3
the weight difference is gonna be about 3-4 pounds between a good 3.5 inch aluminum shaft and a steel 3" shaft. if you can sell off the steel shaft and then not have to com up with a huge difference to go with the aluminum, then the gain is gonna be great for the little it should cost. i look at it this way... less rotating weight is free horsepower. can't go wrong. We have a great deal on the PST aluminum shafts right now. call us and we'll get ya hooked up on one.
03-23-2010, 07:50 PM
#7
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Between the 3 cars I have steel, moly & alum. The cost is not really the best lb per dollar.
Unless you are switching set ups and need a new shaft, I would spend that money on something more cost effective.
I also have a PST alum in one of mine. Very nice piece.
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Between the 3 cars I have steel, moly & alum. The cost is not really the best lb per dollar.
Unless you are switching set ups and need a new shaft, I would spend that money on something more cost effective.
I also have a PST alum in one of mine. Very nice piece.
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03-23-2010, 09:19 PM
#10
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I picked my aluminum PST up from MWC, I ***believe*** they are running a sale on them right now. I went that route because of the mwc 9" I picked up at the same time 
The DS is a nice piece - the mwc 9" on the other hand is a BEAUTIFUL piece!
Like others have said - not the best $$ to gain w/ the ds, but if you ever street drive the car, it should help reduce vibration. From a weight standpoint, being that the diameter is so small, the rotational weight savings are less than loosing an equal amount of weight on a rim/tire combo or drag brake setup
The DS is a nice piece - the mwc 9" on the other hand is a BEAUTIFUL piece!Like others have said - not the best $$ to gain w/ the ds, but if you ever street drive the car, it should help reduce vibration. From a weight standpoint, being that the diameter is so small, the rotational weight savings are less than loosing an equal amount of weight on a rim/tire combo or drag brake setup
That's racing I guess.... 
