Honestly, the aluminum shaft will be better for most people, as it has a lower max torque application than the 1200hp rated carbon fiber ones.

Sorry. I am off the topic. I am asking my case which still keep the stock

exhaust.

I am still debating should go with carbon fiber or aluminum driveshaft.

I read both product description.

http://ft86speedfactory.com/drivesha...t-at-1141.html

http://ft86speedfactory.com/drivesha...t-at-1142.html

I notice that the carbon fiber one mention " it will also make a noticeable difference on the noise level in the car", but the aluminum one did not mention this benefit which bring my concern.

Thanks a lot for your suggestion.

carbon fibre is a vibration damper, compared to an aluminum driveshaft you will feel less vibration from the cars various rotating assemblies, conversely aluminum is lightweight sure, but it can transmit vibration instead of absorbing it. NVH from stiffer bushings such as rear diff cradle and even subframe locks will be less noticeable with the carbon shaft. atleast in my experience. carbon is worth the cost IMHO.

Taken from another thread in regards to the aluminum driveshaft......

Will the carbon one slight increase in RWHP than aluminum one, due to

smaller diameter?

Thanks.

It won't increase HP so to speak. It only frees up power that was used to spin the extra weight in the factory drive shaft. That being said, the diameter doesn't matter so much as the weight does. The one with the lighter weight will not take as much power to spin as one with more weight. But the 1 pound give or take depending on the driveshaft with be almost negligible when considering the aftermarket options.

I checked the testing result which only 4Hp different.

http://theattack.rallysportdirect.com/2012/09/new-products-brzfrs-pst-carbon-fiber-driveshaft

Is there any benefit for the carbon fiber one? I heard that 350Z( or 370Z)

and GTR using carbon fiber driveshaft.

I will go with aluminum one, if there is no benefit from the carbon fiber one.

Which aluminum one you recommend (Axle Exchange or Dss)?

Axle Exchange wrote "This one piece 3" aluminum shaft saves you almost 17lbs !"

Does that mean only 7.2 lbs (24.2-17)?

http://www.axle-exchange.com/inc/sdetail/29/399

Thanks again.

Shorai is actually only $260. At least, that's what I paid from Amazon. Also does not absolutely require a special charger, either, according to the manual that comes with the battery. But if you do want to use the Shorai charger, it is a little over $75.

yeah i just wanted to get some confirmation :thumbsup:

In the Open Tablet thread, it looks like they picked up ~20 from the tune on 91 alone... i'm optimistically hoping for ~50 but before I do any binge shopping on parts I wanted to see if anybody else has gone this route. :party0030:

Here's my estimate, not sure how off-base it is, so corrections welcome:

Engine: ~2
Perrin crank pulley

Clutch: ~3
Undecided, lightweight street clutch and flywheel

Driveshaft: ~3
DSS or PST carbon fiber driveshaft

Fuel: ~20
e85 and 91 tunes, likely with OpenTablet

Exhaust: ~15
Borla UEL (sound profile, not max HP)
Perrin overpipe
Perrin catted front pipe
Invidia N1 exhaust

Wheels: (maybe)
Undecided, lightweight

I said as far as weight goes, for which you proved my point :thumbsup:

I did not claim that one was "better" than the other... No need to get the panties in a bunch. :happy0180:

Thanks for providing the weight of the other shafts, I was wondering about that. Cool note, if anybody is interested in the DSS shaft they have a nice video about their process and testing them as well!

Oh man, I didn't know the Axle Exchange one was that light. I'll have to look into that one.

The carbon fiber ones are rated for that much!? Last I saw, their limit was still unkown to the community. I can't remember specifically which one the thread I was reading was talking about, but holy shit, 1200hp?! Strange they rate it in horsepower and not torque, though.

Oh man! I was just going off Shorai's website. Didn't realize the savings elsewhere. And are you implying the Super B one will or might need a special charger?

Maybe @JRitt can give some insight on living with a Super B battery.

No panties in any bunch. I come off very direct at times I guess but was only trying to inform. I don't see how I proved your point though. Unless I read your statement incorrectly which is possible. When you said greater than (Carbon DS > Aluminum) I took that as you meaning the carbon was better than the aluminum. Did you mean that the weight of the carbon was greater than the aluminum? Meaning the carbon ds is heavier?

LOL @ reason for editing. Yeah, I don't remember what you had said, but I remember being confused by it, haha.

Haha op, I knew your sn looked familiar...I was on srtforums with you! Morgantj13 on there, with flame red srt.

Sorry for being off topic lol

Ill probably see you one of these days, I'm no longer in OC, but I'm up there a lot for work/family.