Flywheel and Driveshaft - Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community

Admired · 06-07-2014, 10:31 AM

How much of a difference in terms of how the car behaves will a aluminum/cro-moly flywheel and aluminum driveshaft have on the car?

gabeg86 · 06-07-2014, 01:50 PM

I can't speak specifically for this car, but for my previous car (Acura rsx type s) the lightened flywheel alone made a big difference. Nothing you can't get used to. I loved the acceleration after the install as the car felt much more responsive. I can only imagine the light flywheel paired with the aluminum driveshaft would do on this car

Sent from my HTC One using Tapatalk

FT-86 SpeedFactory · 06-07-2014, 01:52 PM

It's a huge difference. We run both lightweight items and the car revs very quickly, ready to go. :-) wouldn't drive an frs again without those parts.

Reggaeboyz · 06-07-2014, 07:45 PM

Quote:

Originally Posted by FT-86 SpeedFactory

It's a huge difference. We run both lightweight items and the car revs very quickly, ready to go. :-) wouldn't drive an frs again without those parts.

Did this add any vibration or anything like that?

Target70 · 06-07-2014, 11:26 PM

^ +1

I have run a single piece aluminum shaft on my 240 for over 10 years, only hollow thunk sound when shifting some times.. but then I put on a fidanza aluminum flywheel, and the off throttle/engine braking vibration shakes the whole car and with windows down the echo off the houses sounds like my car is going to fall apart. The response went up, but not enough to make up for the noise/vibration.

Captain Snooze · 06-08-2014, 05:23 AM

"Lightweight flywheel" come in different weights.

kmbkk · 06-08-2014, 07:58 AM

I've thought about doing this as well, but all the vibration stories have kept me from pulling the trigger.

Admired · 06-08-2014, 09:01 AM

I w s probably going to go with thr ACT Prolite which is 10.5 lbs

Reaper · 06-08-2014, 11:14 AM

Go with the streetlite! The protlite is too light for the street and extremely difficult to drive. Even the streetlite is pretty noisy and chatters alot at idle with the ac on. Are you going 6 puck?

xwd · 06-08-2014, 11:14 AM

When I had my WRX I didn't go with the absolute lightest weight flywheel and probably won't on the BRZ either. I've heard lots of bad things about aluminum propshafts but not nearly as many about CF ones, so I'm definitely going CF when the time comes.

I've been trying to purchase a Speedsport clutch for about a month now but no one seems to have them. They don't use that light of a flywheel and the clutch disks are all CF so there is some weight saved there as well.

Admired · 06-08-2014, 11:17 AM

Quote:

Originally Posted by Reaper

Go with the streetlite! The protlite is too light for the street and extremely difficult to drive. Even the streetlite is pretty noisy and chatters alot at idle with the ac on. Are you going 6 puck?

Really? I have an Auto so it won't be difficult to drive like a manual. Do they make clutch packs for autos?

Reaper · 06-08-2014, 11:23 AM

Umm...autos dont have a flywheel

phobos512 · 06-08-2014, 11:44 AM

Quote:

Originally Posted by Admired

Really? I have an Auto so it won't be difficult to drive like a manual. Do they make clutch packs for autos?

You want a torque converter with a lightweight case, not a flywheel. Dunno if such a thing exists for the twins yet. Had one for the 4L60E in my GTO and it was awesome though.

Admired · 06-08-2014, 11:51 AM

Quote:

Originally Posted by Reaper

Umm...autos dont have a flywheel

What?! Why not? The transmission should be irrelevant.

06-07-2014, 10:31 AM	#1
Admired Senior Member Join Date: May 2013 Drives: 2013 Scion FRS Location: GA Posts: 248 Thanks: 0 Thanked 16 Times in 13 Posts Mentioned: 1 Post(s) Tagged: 0 Thread(s)	Flywheel and Driveshaft How much of a difference in terms of how the car behaves will a aluminum/cro-moly flywheel and aluminum driveshaft have on the car?

06-07-2014, 01:50 PM	#2
gabeg86 Senior Member Join Date: Jun 2012 Drives: 2013 Raven FR-S Location: Albuquerque, NM Posts: 324 Thanks: 139 Thanked 81 Times in 55 Posts Mentioned: 3 Post(s) Tagged: 0 Thread(s)	I can't speak specifically for this car, but for my previous car (Acura rsx type s) the lightened flywheel alone made a big difference. Nothing you can't get used to. I loved the acceleration after the install as the car felt much more responsive. I can only imagine the light flywheel paired with the aluminum driveshaft would do on this car Sent from my HTC One using Tapatalk __________________ Perrin (LWCP) - Blox (shift knob) - HID Powerhouse (LED's and HID's) - Eibach (sportlines) - Muteki (lugs) - SPL (LCA's) - Rays Engineering (57dr's) - Dunlop Direzza ZII (tires) - Greddy (Evo3) - Full Race (turbo kit) - Ecutek (tuned)

06-08-2014, 05:23 AM	#6
Captain Snooze Because compromise ® Join Date: Jan 2012 Drives: Red Herring Location: australia Posts: 7,818 Thanks: 4,050 Thanked 9,551 Times in 4,195 Posts Mentioned: 60 Post(s) Tagged: 0 Thread(s)	"Lightweight flywheel" come in different weights. __________________ My car is completely stock except for all the mods.

06-08-2014, 11:14 AM	#9
Reaper in orbe terrum non visi Join Date: Jan 2014 Drives: violent Location: Mountains Posts: 1,747 Thanks: 279 Thanked 762 Times in 446 Posts Mentioned: 62 Post(s) Tagged: 1 Thread(s)	Go with the streetlite! The protlite is too light for the street and extremely difficult to drive. Even the streetlite is pretty noisy and chatters alot at idle with the ac on. Are you going 6 puck? __________________ I have E85 where there isn't E85, that's my secret. http://www.ft86club.com/forums/showt...t=reaper+build

06-08-2014, 11:23 AM	#12
Reaper in orbe terrum non visi Join Date: Jan 2014 Drives: violent Location: Mountains Posts: 1,747 Thanks: 279 Thanked 762 Times in 446 Posts Mentioned: 62 Post(s) Tagged: 1 Thread(s)	Umm...autos dont have a flywheel __________________ I have E85 where there isn't E85, that's my secret. http://www.ft86club.com/forums/showt...t=reaper+build

06-07-2014, 01:52 PM	#3
FT-86 SpeedFactory Join Date: Jul 2012 Drives: 2013 Scion FR-S Location: Des Moines, IA Posts: 7,694 Thanks: 1,298 Thanked 3,579 Times in 1,253 Posts Mentioned: 341 Post(s) Tagged: 5 Thread(s)	It's a huge difference. We run both lightweight items and the car revs very quickly, ready to go. :-) wouldn't drive an frs again without those parts.

06-07-2014, 11:26 PM	#5
Target70 Senior Member Join Date: Dec 2013 Drives: 2013 Asphalt 6spd Location: Mid GA Posts: 783 Thanks: 265 Thanked 366 Times in 240 Posts Mentioned: 18 Post(s) Tagged: 0 Thread(s)	^ +1 I have run a single piece aluminum shaft on my 240 for over 10 years, only hollow thunk sound when shifting some times.. but then I put on a fidanza aluminum flywheel, and the off throttle/engine braking vibration shakes the whole car and with windows down the echo off the houses sounds like my car is going to fall apart. The response went up, but not enough to make up for the noise/vibration.

06-08-2014, 07:58 AM	#7
kmbkk First 86 Driver Baby! Join Date: Jan 2012 Drives: FR-S, Flex Location: Williamsburg, VA Posts: 1,760 Thanks: 520 Thanked 525 Times in 356 Posts Mentioned: 32 Post(s) Tagged: 3 Thread(s)	I've thought about doing this as well, but all the vibration stories have kept me from pulling the trigger.

06-08-2014, 09:01 AM	#8
Admired Senior Member Join Date: May 2013 Drives: 2013 Scion FRS Location: GA Posts: 248 Thanks: 0 Thanked 16 Times in 13 Posts Mentioned: 1 Post(s) Tagged: 0 Thread(s)	I w s probably going to go with thr ACT Prolite which is 10.5 lbs

06-08-2014, 11:14 AM	#10
xwd Senior Member Join Date: Feb 2012 Drives: 2013 DGM Subaru BRZ (Subie #9) Location: ATL, US Posts: 2,667 Thanks: 123 Thanked 861 Times in 552 Posts Mentioned: 32 Post(s) Tagged: 0 Thread(s)	When I had my WRX I didn't go with the absolute lightest weight flywheel and probably won't on the BRZ either. I've heard lots of bad things about aluminum propshafts but not nearly as many about CF ones, so I'm definitely going CF when the time comes. I've been trying to purchase a Speedsport clutch for about a month now but no one seems to have them. They don't use that light of a flywheel and the clutch disks are all CF so there is some weight saved there as well.

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
DIY: Driveshaft Shop (DSS) Carbon Fibre Driveshaft	F1point4	DIY (Do-It-Yourself) Guides	67	04-17-2021 06:21 PM
FS: Driveshaft Shop (DSS) aluminum driveshaft (for AT only) $350	dp1	Transmission and Driveline	8	06-18-2014 05:16 PM
6 MT Swap, Complete: Transmission,Starter, Flywheel, Clutch, Driveshaft, Pedals, Hydr	ecda	Transmission and Driveline	2	01-30-2014 11:45 PM
New The Driveshaft Shop Carbon Fiber 1-Piece Driveshaft	Evasive Motorsports	Engine, Exhaust, Transmission	1	09-24-2013 03:27 PM
WTB: Driveshaft Shop (or lighter) driveshaft	Anthony	Want-To-Buy Requests	8	08-27-2013 01:30 PM

User Name		Remember Me?
Password