Quote:
Originally Posted by Poodles
Axial strength is pretty pointless on a driveshaft. I'll say it again: DRIVESHAFT CRITICAL SPEED IS FAR WORSE.
RX8: Kinda carbon fiber (carbon reinforced plastic)
350Z: carbon fiber
370Z: same fing car...
GTR: Carbon fiber.
Z06: Doesn't count as it's a torque tube setup (tranny is in the rear)
Most of those are carbon fiber. Carbon fiber is used because it allows them to run a single piece driveshaft without having driveshaft critical speed issues. It's also fragile and has to have shields to prevent foreign objects from hitting it.
I don't see anyone breaking the stock driveshaft. It's also NOT stronger as (god I feel like I'm beating a dead horse here) driveshaft critical speeds will occur.
As none of the driveshaft companies want to give out their specs of the shaft (big surprise as it's probably unsafe), I'm guessing at the specs.
If someone wants to get me length, diameter, and wall thickness, it's easy to figure this stuff out...
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good point. my guess is the aluminum drive shafts are 1/8" thick. which with a fancy calculator i found online (lol) says 1/8" thick 6061 aluminum drive shaft critical speed is just under 9000RPM. im guessing most of us with this car dont need to worry too much about hitting drive shaft critical speeds
http://www.wallaceracing.com/drivesh...critical_speed