PST Carbon Fiber Drive Shaft Installed - Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community

msile · 09-26-2012, 08:40 PM

Purchased from Rallysport. Great customer service!
I didn't feel like getting under the car again so I took it to Mr. Auto Clinic who, being meticulous, took under 30 minutes to swap it out and complete an oil change. It was that simple.

Measured 13.9 pounds to a T. I did not weigh the stock piece, but it is supposed to be 10.24 pounds lighter than stock according to Rallysport.

It is as the guys at Rallysport said. The car feels much peppier and it ties all my other mods together very well. The shifts are easier (less notchiness) too. I also did not feel any vibration through the RPM range.

CF Shaft Close-Up

Stock Shaft

CF Shaft

GenkiElite · 09-26-2012, 08:43 PM

Cool mod. Any idea how much lighter this is than an aluminum driveshaft?

xjohnx · 09-26-2012, 08:51 PM

Nice! I'll go ahead and be "that guy". How much!?

msile · 09-26-2012, 09:10 PM

Quote:

Originally Posted by GenkiElite

Cool mod. Any idea how much lighter this is than an aluminum driveshaft?

Nope.

msile · 09-26-2012, 09:13 PM

Quote:

Originally Posted by xjohnx

Nice! I'll go ahead and be "that guy". How much!?

Thanks. More info and pricing here:

http://www.ft86club.com/forums/showthread.php?t=16029

ESC POD · 09-26-2012, 10:21 PM

Wow...$$$$$...

Looks awesome by the way!

msile · 09-26-2012, 10:41 PM

Quote:

Originally Posted by ESC POD

Wow...$$$$$...

Looks awesome by the way!

Just a kidney

Thanks.

JPxM0Dz · 09-26-2012, 10:47 PM

Nice Mod!

Sent from my GT-I9300 using Tapatalk 2

mike2100 · 09-26-2012, 11:04 PM

1100 bucks to lose over 10 lbs rotational mass. That's bordering on reasonable (compared to 800-1400 for wheels that drop 12-24 lbs). But I still like it. Props for doing this mod. I could see this on my future to do list, but probably when I run out of other things to do.

RallySport Direct · 09-27-2012, 01:12 AM

Wow, thanks for taking the time to do the write up and taking the awesome pictures. Glad you are enjoying the shaft as well, we are loving ours!

Thanks again!
Rick

serialk11r · 09-27-2012, 01:21 AM

Quote:

Originally Posted by mike2100

1100 bucks to lose over 10 lbs rotational mass. That's bordering on reasonable (compared to 800-1400 for wheels that drop 12-24 lbs). But I still like it. Props for doing this mod. I could see this on my future to do list, but probably when I run out of other things to do.

After the differential gear ratio reduction is taken into account, the effective moment of inertia decrease is pretty small compared to wheels. Of course, wheels can only be made so light, but their effective "moment radius" is still larger.

msile · 09-27-2012, 01:34 AM

Quote:

Originally Posted by serialk11r

After the differential gear ratio reduction is taken into account, the effective moment of inertia decrease is pretty small compared to wheels. Of course, wheels can only be made so light, but their effective "moment radius" is still larger.

True. I have lighter than stock wheels, pulley and the CF Shaft. The combo is pretty noticeable.

serialk11r · 09-27-2012, 01:36 AM

Quote:

Originally Posted by msile

True. I have lighter than stock wheels, pulley and the CF Shaft. The combo is pretty noticeable.

That must be pretty awesome. I personally wouldn't spend that money (aluminum makes more sense in this situation imo) but CF is always badass

msile · 09-27-2012, 01:39 AM

Quote:

Originally Posted by serialk11r

That must be pretty awesome. I personally wouldn't spend that money (aluminum makes more sense in this situation imo) but CF is always badass

Yeah too bad you have to get under the car to see it.

Who makes it in aluminum?

09-26-2012, 08:40 PM	#1
msile Senior Member Join Date: Jun 2012 Drives: ISF Location: FL Posts: 295 Thanks: 76 Thanked 234 Times in 97 Posts Mentioned: 8 Post(s) Tagged: 0 Thread(s)	PST Carbon Fiber Drive Shaft Installed Purchased from Rallysport. Great customer service! I didn't feel like getting under the car again so I took it to Mr. Auto Clinic who, being meticulous, took under 30 minutes to swap it out and complete an oil change. It was that simple. Measured 13.9 pounds to a T. I did not weigh the stock piece, but it is supposed to be 10.24 pounds lighter than stock according to Rallysport. It is as the guys at Rallysport said. The car feels much peppier and it ties all my other mods together very well. The shifts are easier (less notchiness) too. I also did not feel any vibration through the RPM range. CF Shaft Close-Up Stock Shaft CF Shaft __________________ 1993 MR2 Turbo - Red 1996 Supra Turbo - White 2011 ISF - Mercury Metallic / Black Suede 2013 Scion FR-S - Firestorm Red 2014 Lexus GS F-Sport - White / 2015 Lexus RCF - Blue (Nov Delivery)

09-26-2012, 10:21 PM	#6
ESC POD Senior Member Join Date: Aug 2012 Drives: Sterling Silver BRZ Location: Portland, Oregon Posts: 131 Thanks: 113 Thanked 32 Times in 24 Posts Mentioned: 5 Post(s) Tagged: 0 Thread(s)	Wow...$$$$$... Looks awesome by the way! __________________ Activating: ESC POD...let's Drive!!

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09-26-2012, 08:43 PM	#2
GenkiElite Senior Member Join Date: Aug 2010 Drives: 91 Corolla (dd) S14 (daily drifter) Location: Cincinnati Posts: 460 Thanks: 139 Thanked 78 Times in 50 Posts Mentioned: 0 Post(s) Tagged: 0 Thread(s)	Cool mod. Any idea how much lighter this is than an aluminum driveshaft?

09-26-2012, 08:51 PM	#3
xjohnx Grip>Slip Join Date: Jun 2012 Drives: 13 SWP BRZ Ltd - Innovate Powered! Location: RVA Posts: 3,563 Thanks: 656 Thanked 1,716 Times in 1,031 Posts Mentioned: 45 Post(s) Tagged: 3 Thread(s)	Nice! I'll go ahead and be "that guy". How much!?

09-27-2012, 01:12 AM	#10
RallySport Direct Join Date: Apr 2012 Drives: 2014 Widebody Cosworth FR-S Location: Salt Lake City, Utah Posts: 4,542 Thanks: 205 Thanked 1,198 Times in 554 Posts Mentioned: 38 Post(s) Tagged: 0 Thread(s)	Wow, thanks for taking the time to do the write up and taking the awesome pictures. Glad you are enjoying the shaft as well, we are loving ours! Thanks again! Rick

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