Hi all, wondering if anyone has replaced their driveshafts with the aftermarket ones from Altered. I am considering picking a pair up...one less thing to worrie about.

 

Bah! I can't find the thread from a while back, and I don't recall the manufacturer at the moment. I looked into a carbon fiber driveshaft for the G. The company makes them for some cars (BMW mostly?) and a lot of industrial applications. Looks like a pretty good option, all weight, balance/distortion and safety aspects considered.

Price wasn't too bad, IMO, at about $1200.

But here is the kicker for me (and others I spoke to): They don't currently make one for the G so they will need an OEM driveshaft to use as a template. I think turnaround was going to be around 2-4 weeks. I thought about avoiding downtime and just buying a new OEM driveshaft ($500) and sending it to them, but that drives the cost (to be first, at least ) up much closer to $2000 than I'm willing to go... ...right now.

I'll probably get around to it eventually, but I'd certainly do it a lot faster if it was just the $1200 cost of the CF driveshaft.

Found a link to a short thread: https://g35driver.com/forums/showthr...=cf+driveshaft

And the link to the company: www.acpt.com

 

Thanks for the reply, I was looking more toward the reliablity side of things...I plan to run 500rwh with the greddy set up and was looking into the future. Altered Atmoshere is claiming a breakdown of the stock driveshafts at 400wrh. Like building the motor I wanted to know if this would be a wise investment or something I could get by with.

 

I don't have one on my G but I do have one on my 300zx. Typically, aftermarket driveshafts are prone to slight vibration which may not be an issue for you since you are probably after every bit of power. The other issue is safety. The stock driveshaft is designed to break apart into two pieces during accidents preventing it from penetrating the cabin. Aftermarket driveshafts are usually one piece and could penetrate the cabin in a front or rear wreck.

 

I've never heard the synthetic 400whp figure for the driveshafts. Sounds like a ploy to me. But what do I know; I'm not FI.

Get on my350z and PM Sharif, or post in that board's FI section. You'll get much a better response, and probably much more accurate information.

 

I've seen rear drive-axles (half-shafts?) at AA, made by The Driveshaft Shop. What are they offering in terms of a driveshaft for the G?

Benefits of the CF driveshaft address two of the concerns listed regarding aftermarket driveshafts.

The memory-nature of the CF driveshaft allows the needed flex but returns to normal position, whereas a metal driveshaft will eventually have that twist set-in and cause vibrations.

The safety aspect can't be beat by a metal driveshaft, regardless if it's a 1- or 2-piece. The CF driveshaft's torsional (twist) strength is huge. It's also made to snap and "broom" when it encounters a high-impact from the side, such as if a joint breaks and it drops to the pavement. It can't penetrate the underbody.

Check APST for more info.

 

I saw somewhere (can't remember where) that the G driveshaft was good to 750hp.

 

If anyone is interested in more information please feel free to PM me.

 

Dave,
Was the OP referring to the driveshaft or the halfshafts?

 

+1

And what do you offer in terms of driveshaft replacement?

 

the G has a 2 piece drive shaft i know that i heard they are good up to high horsepower but i know the half shafts for the axles take a **** at about 450whp...i heard our stock rears (pumpkins)are good for about 1000whp...i never heard of anyone snapping a driveshaft but axles hell yea i seen it at the track plenty of times....