carbon fiber driveshaft???
I'll call GTM today to verify but I'm pretty sure thats where they're sourcing mine.
Haven't popped in this thread in a while, but I'll chime in. Its now been about 6 months since I've installed my Powertrain Industries CF shaft and still no issues. I was just under the car this past weekend changing out exhaust gaskets and everything is still spot on with the shaft. I've also done a track day since installing the shaft without any problems.
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Joined: Mar 2006
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From: OC,CA
I just received a message from z1 and they are claiming the driveshafts will be availabe again in 1 month. I will be getting one the second they are in and im gonna have it installed and before/after dynoed at stillen. Ill post again with results
Found out GTM is sourcing theirs from Inland Empire Driveshaft here in Socal. Never heard of them before but their aluminum shafts run for around $500. I'll put it to the test when I eventually get the car back.
ive heard a RUMOR that z1 is also looking into releasing a line of carbon fiber driveshafts too... which i suspect will hit right after the aluminum ones. has anyone else heard this? ( i heard this from someone that worked at z1 btw )
They're about 15 minutes away from me, lol. Maybe I should pay them a visit.
These guys? http://www.iedls.com/
They're about 15 minutes away from me, lol. Maybe I should pay them a visit.
They're about 15 minutes away from me, lol. Maybe I should pay them a visit.
These guys? http://www.iedls.com/
They're about 15 minutes away from me, lol. Maybe I should pay them a visit.
They're about 15 minutes away from me, lol. Maybe I should pay them a visit.
Sorry all Ive been moving and working 120/hr a week! yes per week!
so basically I am running 6psi less boost and make 12hp less than the steel DS set up.
Car is pretty much identical. I do have long tubes on now vs strup and test pipes but I cant see that being too much diff. It does provide a 1psi drop in boost from what i have been told.
car made 545.4/445 at 19psi w the CF DS vs the 557/460 at 25psi with the stock DS
I will try to get a straight same day comparison. I want to know for myself. but bare with me my life is a trip, this is the first time i logged in, in a minute besides replies to PMs on my phone.
UPDATE THREAD
https://g35driver.com/forums/nationa...te-thread.html
so basically I am running 6psi less boost and make 12hp less than the steel DS set up.
Car is pretty much identical. I do have long tubes on now vs strup and test pipes but I cant see that being too much diff. It does provide a 1psi drop in boost from what i have been told.
car made 545.4/445 at 19psi w the CF DS vs the 557/460 at 25psi with the stock DS
I will try to get a straight same day comparison. I want to know for myself. but bare with me my life is a trip, this is the first time i logged in, in a minute besides replies to PMs on my phone.
UPDATE THREAD
https://g35driver.com/forums/nationa...te-thread.html
I say average for me anyway 8-12hp. Has the same effect as putting on light weight wheels or anything that reduces rotational weight.
What is the critical speed and rpm of the AL shaft. Here is a chart I found on critical speeds.
http://www.pstds.com/driveshaft_crit...peed_chart.htm
Probably a speed most will never reach, but the RPM some can reach if it's in the mid-upper 7k range depending on how long the shaft is. The 5at shaft is a little shorter than the 6mt.
I've taken mine to 130mph, 7300rpm and over 50 dyno and track runs no issues so far.
What is the critical speed and rpm of the AL shaft. Here is a chart I found on critical speeds.
http://www.pstds.com/driveshaft_crit...peed_chart.htm
Probably a speed most will never reach, but the RPM some can reach if it's in the mid-upper 7k range depending on how long the shaft is. The 5at shaft is a little shorter than the 6mt.
I've taken mine to 130mph, 7300rpm and over 50 dyno and track runs no issues so far.
another reason CF is FTMFW! LOL im spinning 7500rpms currently
I am 7,500 with an aluminum one, mine is custom built and beefed up a lot...I am not sure if the mass produced ones just run OEM yokes and joints? I haven't had any issues at all with mine. I have never measured the OD but I think it's 4.5".
Although most aren't running such high RPMs, the few that are, this could be a big a deal if vibration is present.
