Arrived today Looks like it got a bit hammered on the trip but Im suprised as very very well boxed and padded. Everything else looks great. So light I can pick it up with my left hand easily. Thanks Street to Strip. Big recommendation on their service.
Toyz... looks great.. what's Nathan doing with all his old toyz.. is there a Zed garage sale at his place soon.. :thumbsup:
Pardon my ignorance. But what's the round thing with the bolts? And if you do achieve something like 700hp they say a CF driveshaft will give you about 5% more power at the wheels... nice bonus really on top of the safety feature.
Yeah no idea as nothing else in the box I just figured it was an adaptor. Having not seen the ends myself Im not sure if its required.
That one... ...is a 3.26" Outside Diameter CF shaft and rated at 1,000HP... can also get them in 3.79" OD and these are rated @ 2,000HP
I actually advised... ...to get the 2,000HP shaft as it was only marginally dearer. ($200) But, no point really... the dif and axles wont take much more then 1,000HP with sticky rubber. So if he did go beyond 1,000HP he'd need new dif, gearbox and axles and probably a new shaft anyway as the length wouldn't be right. Should work a treat, it wont twist like metal shafts either.
Looking at the pics, you will need the adaptor... The Z doesn't use a standard 4 bolt spicer coupling, which is what is swinging off the back of your t/shaft. The Z uses a 6 bolt pattern.
Huh..??? "...wont twist like metal shafts either". Do they really? What sort of stresses cause this? Or, is it only under high performance applications?
Yes, they twist. Fraom the acpt website. ---------- All driveshafts twist to some degree when torque is applied. The resistance to this twist is measured as torsional spring rate. Standard ACPT driveshafts have a torsional spring rate a little less than aluminum and about half that of steel. The advantage of a lower spring rate is less driveline shock and a reduction of stress on other drivetrain components, as well as increased traction. Every part of your drivetrain may benefit from the use of a carbon fiber shaft. The continual twist when torque is applied eventually causes all metal shafts to take a set in the twisted position. Consequently the shaft ends become permanently out of phase by several degrees and vibration begins to break components. Carbon fiber, on the other hand, has a near perfect "elastic memory". ACPT's carbon fiber driveshafts can't fail by becoming permanently twisted. As RPM goes up, all driveshafts begin to whip. At a certain "critical speed", unique to each type of driveshaft, this bending of the shaft creates lateral runout and vibration. The intensity (magnitude) and frequency of these bad vibes are determined by a combination of stiffness, density, size, and geometry. This vibration is a primary cause of drivetrain breakage from the transmission to the rear end. The "critical speed" of ACPT's carbon fiber shafts is much higher than steel or aluminum shafts of the same size. Exceptional harmonic damping coupled with high lateral stiffness and low density allow carbon fiber driveshafts to virtually eliminate vibration problems from shaft whip.
Brooming Carbon fiber driveshafts provide a special measure of extra safety. Despite safety hardware like shaft hoops and covers, a broken metal driveshaft can become a flailing bludgeon that beats up everything in its' path; severe injuries to the driver, extreme damage to the car, and even vaulting the car into the air can be the result. Carbon fiber minimizes these dire consequences. Carbon fiber driveshafts are built for strength primarily to transfer torque and can be broken with a hard blow from the side. The result is that when a u-joint or yoke fails the carbon fiber composite begins to disintegrate when it contacts the chassis or driveshaft hoop. As the composite comes apart, the shaft simply turns into a bunch of loose carbon fibers. much like the end of a broom . In fact, in composite technology this failsafe state is called "brooming". Instead of tearing up the driver and shredding the chassis, the carbon fiber broom will probably just polish dirt and paint off the chassis. Racers race to go fast, not to cheat death and disability. ACPT is very proud of the fact that our driveshafts have helped to prevent serious injury on several teams, like Dick Anderson Racing. "I have two talented, young drivers to protect," Dick Anderson explains. "Both have narrowly escaped serious injury when metal shafts broke and penetrated their cars. Last season, a bracket came loose, destroyed the torque arm and broke the ACPT shaft in two; but it never came into the car. It "broomed", just as they said it would, and no one was hurt." "from the acpt website"
You realise that is a positive point though right? positive in respect to your safty and others, yes! Im pointing out they dont seem last very long, and are expensive. Why dont super cars have them fitted, answer> no one would finish the race!
