Can anyone tell me what would be the plus and the minuses for each of these driveshafts.

 

weight & stiffness - CF drive shafts tend to be lighter (lower inertia = more responsive engine), and they also flex in comparison to a metal drive shaft. That flex gives you less severe shock loads on the rest of the driveline (TC and rear diff) which can save things from breaking in high HP/TQ cars.

 

seems like carbon fiber is the way to go

 

^ True, but a cf driveshaft sucks the life out of your wallet. They ain't cheap.

 

who sells CF driveshafts? How much are they?

 

Almost 3K with tax shipped.

 

what he said - Torqline makes one for the Evo:
http://www.torqline.com/product_detail_38.php

 

"AMS has teamed up with Torqline CTG / EVO 400 to offer the Stateside EVO VIII owners a sollution for broken Axles and Rear differentials. Carbon Fiber Drive shafts have been used for years in the pro sport compact and road race world. "

"Now for price.

The EVO VII and EVO VIII units are priced at $2100 usd plus shipping."

As Jasil said...almost $3K when shipped...yikes!

 

Ouch!!!!

 

Almost $3k when shipped???? Why is it going to cost us more than $200 to ship a driveshaft???

 

The price used to be a little higher. So, 2199$, tax, shipping $2500 still not worth it for 15lbs even if you use the 2:1 equation for sprung/unsprung your gonna spend $2500 for 30lb weight reduction? Not unless I'm 100% maxxed out looking for every last ounce of performance.

 

I am pretty sure someone else here just got that one from AMS and it was only around $2300. I can imagine the level of quality and fit this part must have, not to mention what it can do for the car, I dont think the price is that unreasonable. AMS has one on there drag car and after seeing it run 8.7 seconds at DSM Shootout, that pretty much has me sold on it!

 

Your pushing current combination to the limit runn low 10's/high9's trying to squeeze a little more out of the current setup? If not it's not worth it at all.

 

Aluminium shafts are much less expensive, and give some additional cushioning of the torque loads as well. They also are lighter than stock by quite a bit, and are more durable than a CF shaft, so there are some pros to the aluminium shafts as well at 1/3 of the cost.

 

DriveShaft Shop has been taking forever to develop their 2-piece Evo aluminum driveshaft.