New Clutch Shaking Going Into 1st?!? - Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community

Jozy · 12-14-2020, 12:17 PM

Hello,

My OEM clutch went out on me about 3 weeks ago. I immediately bought the ACT clutch kit with normal FW and also the Verus Engineering Fork, Verus Pivot Billet (I think that's what it's called), and the updated Toyota Throwout bearing with the white dot and I tossed out the other that came with the kit. I've had the car back with the new clutch for about 2 almost 3 weeks. I've been focusing on street driving and taking it easy whole the clutch is being broken in. This is my first clutch that i break in. When i go into first the car feels as if it's going to stall and I have to rev it up a bit more than I used to I'd say almost 1.5k Rpm as opposed to about 500-800. All the other gears are buttery smooth expect for 1st and Revese but we all know reverse is extremely high. Is the shaking normal while its breaking in?

x808drifter · 12-14-2020, 12:23 PM

Mike_ZN6 · 12-14-2020, 01:12 PM

Isn't the "normal" flywheel in the ACT kit still a few pounds lighter than the OEM flywheel? That would explain the difficulty with launching into first.

As far as the shaking... I don't think it is supposed to do that. There have been many reports on here of people having issues with ACT clutches specifically.

Jozy · 12-14-2020, 01:24 PM

I read on another post that the normal flywheel is a little bit lighter than OEM. Is there a better way to engage with a lighter flywheel?
On other posts I read people had issues with the exedy clutch kits even the ft86speed recommended the ACT over the exedy hope I didn't buy a lemmon.

NoHaveMSG · 12-14-2020, 01:50 PM

Quote:

Originally Posted by Jozy

On other posts I read people had issues with the exedy clutch kits even the ft86speed recommended the ACT over the exedy hope I didn't buy a lemmon.

Typically they are using an eff'd flywheel or not installing it correctly, as well as not buying the right clutch for their application. The OEM clutch is an Exedy.

azeo · 12-14-2020, 10:55 PM

For what it's worth I'm using the ACT Prolite flywheel, so significantly lighter than yours. I'm using OFT to adjust both idle and did the tip in adjustment. Also removed the helper spring, slave cylinder swap, IRP short shifter, and have the MTEC springs. Swapping to the ACT kit was the last thing I did, so no input for lighter flywheel with stock setup. Clutch is very heavy with short engagement, took a decent amount of time to get used to. That said, I had some shudder initially but it's settled over time (several months, multiple track days). At this point I'm used to it and don't have any issues driving it in traffic. Also no shudder. Seems like I'm one of the few though that don't have issues with this kit though.

Sent from my ONEPLUS A5010 using Tapatalk

gpvecchi · 12-15-2020, 03:31 AM

100% warped/contaminated flywheel. Machine it or swap it with a lighter one (my best mod ever!)

12-14-2020, 12:17 PM	#1
Jozy Member Join Date: Apr 2020 Drives: 2015 Subaru Brz Limited Location: Arlington,Tx Posts: 14 Thanks: 0 Thanked 1 Time in 1 Post Mentioned: 0 Post(s) Tagged: 0 Thread(s)	New Clutch Shaking Going Into 1st?!? Hello, My OEM clutch went out on me about 3 weeks ago. I immediately bought the ACT clutch kit with normal FW and also the Verus Engineering Fork, Verus Pivot Billet (I think that's what it's called), and the updated Toyota Throwout bearing with the white dot and I tossed out the other that came with the kit. I've had the car back with the new clutch for about 2 almost 3 weeks. I've been focusing on street driving and taking it easy whole the clutch is being broken in. This is my first clutch that i break in. When i go into first the car feels as if it's going to stall and I have to rev it up a bit more than I used to I'd say almost 1.5k Rpm as opposed to about 500-800. All the other gears are buttery smooth expect for 1st and Revese but we all know reverse is extremely high. Is the shaking normal while its breaking in?

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12-14-2020, 12:23 PM	#2
x808drifter LMGTFY Join Date: Mar 2016 Drives: 13 FRS, 91 Miata Location: Lava Town, HI Posts: 2,776 Thanks: 5,561 Thanked 3,646 Times in 1,625 Posts Mentioned: 15 Post(s) Tagged: 0 Thread(s)

12-14-2020, 01:12 PM	#3
Mike_ZN6 Senior Member Join Date: Apr 2020 Drives: 2016 Toyota 86 Location: DMV Posts: 426 Thanks: 253 Thanked 209 Times in 139 Posts Mentioned: 2 Post(s) Tagged: 0 Thread(s)	Isn't the "normal" flywheel in the ACT kit still a few pounds lighter than the OEM flywheel? That would explain the difficulty with launching into first. As far as the shaking... I don't think it is supposed to do that. There have been many reports on here of people having issues with ACT clutches specifically.

12-14-2020, 01:24 PM	#4
Jozy Member Join Date: Apr 2020 Drives: 2015 Subaru Brz Limited Location: Arlington,Tx Posts: 14 Thanks: 0 Thanked 1 Time in 1 Post Mentioned: 0 Post(s) Tagged: 0 Thread(s)	I read on another post that the normal flywheel is a little bit lighter than OEM. Is there a better way to engage with a lighter flywheel? On other posts I read people had issues with the exedy clutch kits even the ft86speed recommended the ACT over the exedy hope I didn't buy a lemmon.

12-14-2020, 10:55 PM	#6
azeo Member Join Date: Jul 2015 Drives: 2014 FRS Ultramarine Location: Denver Posts: 10 Thanks: 0 Thanked 0 Times in 0 Posts Mentioned: 0 Post(s) Tagged: 0 Thread(s)	For what it's worth I'm using the ACT Prolite flywheel, so significantly lighter than yours. I'm using OFT to adjust both idle and did the tip in adjustment. Also removed the helper spring, slave cylinder swap, IRP short shifter, and have the MTEC springs. Swapping to the ACT kit was the last thing I did, so no input for lighter flywheel with stock setup. Clutch is very heavy with short engagement, took a decent amount of time to get used to. That said, I had some shudder initially but it's settled over time (several months, multiple track days). At this point I'm used to it and don't have any issues driving it in traffic. Also no shudder. Seems like I'm one of the few though that don't have issues with this kit though. Sent from my ONEPLUS A5010 using Tapatalk

12-15-2020, 03:31 AM	#7
gpvecchi Senior Member Join Date: Mar 2018 Drives: Toyota 86 GT Limited PP (Model G) Location: Italy Posts: 1,018 Thanks: 406 Thanked 335 Times in 187 Posts Mentioned: 14 Post(s) Tagged: 0 Thread(s)	100% warped/contaminated flywheel. Machine it or swap it with a lighter one (my best mod ever!)

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