Verus Engineering Billet Clutch Fork and Pivot - Page 9 - Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community

Drakiv · 09-12-2016, 07:20 PM

Quote:

Originally Posted by DHitHim

How weak is the oem pivot ball? I just installed the fork and didn't even realize that velox even made a ball pivot until I had already installed the transmission.

It's not necessarily weak, however with a twin plate clutch or heavy duty clutch and extra pressure on a stronger fork will wear or mushroom the pivot eventually. The stronger pivot just gives a little extra longevity. No one has complained about the stock pivot failing, this was created to give a little extra security due to other vehicle applications that had stronger forks installed also had their pivots fail like in a few Nissan vehicles. So really past experiences, and from what velox said, it wasn't that hard or expensive to create.

VerusEric · 09-14-2016, 02:54 AM

So here's something interesting that happened to this clutch fork pivot, a local car at that!

The last picture is what makes me question what broke what. Which part broke first (TOB or Pivot) to cause the fork to rub against the bell housing. I don't truly have an answer, my guess would be TOB started to fail, causing a bending moment to be placed on the pivot which caused the pivot to ultimately fail. That's just a guess though, car has over 120k miles on it.

He drove the car like this for 20 or so miles to get it home one day, then to the shop the next.

Thanks,
Eric

johan · 09-14-2016, 02:29 PM

Quote:

Originally Posted by VeloxEric

So here's something interesting that happened to this clutch fork pivot, a local car at that!

----

The last picture is what makes me question what broke what. Which part broke first (TOB or Pivot) to cause the fork to rub against the bell housing. I don't truly have an answer, my guess would be TOB started to fail, causing a bending moment to be placed on the pivot which caused the pivot to ultimately fail. That's just a guess though, car has over 120k miles on it.

He drove the car like this for 20 or so miles to get it home one day, then to the shop the next.

Thanks,
Eric

ichitaka05 · 09-14-2016, 02:48 PM

Quote:

Originally Posted by VeloxEric

So here's something interesting that happened to this clutch fork pivot, a local car at that!

Hm... was it stock clutch? I've heard flex of clutch fork causes stress on pivot and weaken by stiffer aftermarket clutch, but never seen it break. Good thing you made a stronger ver!

Kiske · 09-16-2016, 10:21 PM

@VeloxEric, any idea when the next batch of forks will be ready? Back order status problems

VerusEric · 09-16-2016, 11:40 PM

Quote:

Originally Posted by ichitaka05

Hm... was it stock clutch? I've heard flex of clutch fork causes stress on pivot and weaken by stiffer aftermarket clutch, but never seen it break. Good thing you made a stronger ver!

He was on stock clutch fork still. He was/is on an Exedy Stage 2 clutch.

Quote:

Originally Posted by Kiske

@VeloxEric, any idea when the next batch of forks will be ready? Back order status problems

FT-86 SpeedFactory has another batch headed to them currently, just received these in today! I'll have our website updated as well, we have a few on the shelf.

Thanks,
Eric

SoCalArgento · 09-17-2016, 06:30 AM

Quote:

Originally Posted by VeloxEric

He was on stock clutch fork still. He was/is on an Exedy Stage 2 clutch.

FT-86 SpeedFactory has another batch headed to them currently, just received these in today! I'll have our website updated as well, we have a few on the shelf.

Thanks,
Eric

Happy to hear this, I made an order from ft86speed factory last week and eager to receive and install the fork

Sent from my iPhone using Tapatalk

Kris86 · 09-19-2016, 05:02 PM

when will these be back in stock?

I check ft86speedfactory and it says back ordered

VerusEric · 09-20-2016, 01:03 PM

Quote:

Originally Posted by Kris86

when will these be back in stock?

I check ft86speedfactory and it says back ordered

FT-86 SpeedFactory should be receiving them in the next day or so. We have some on the shelf as well.

These come with a nice black oxide coating now. Pictures are below. This coating serves the same purpose as powder coat, corrosion resistance. Going this route reduces our lead time for a final product to keep it on the shelf more readily.

Thanks,
Eric

FRS Johnny · 10-04-2016, 09:18 PM

So if I'm on the freeway above 60mph and I down shift from 6 to 5, 5th will grind. Do you guys think this clutch fork will solve the issue?

churchx · 10-04-2016, 09:51 PM

If all the other gear changes are fine, imho problem is not clutch related, but rather worn synchros of that gear.

VerusEric · 10-04-2016, 10:00 PM

Quote:

Originally Posted by FRS Johnny

So if I'm on the freeway above 60mph and I down shift from 6 to 5, 5th will grind. Do you guys think this clutch fork will solve the issue?

What @churchx said. This does not sound like a problem that can be fixed with a clutch fork.

Thanks,
Eric

Drakiv · 10-04-2016, 10:07 PM

Quote:

Originally Posted by FRS Johnny

So if I'm on the freeway above 60mph and I down shift from 6 to 5, 5th will grind. Do you guys think this clutch fork will solve the issue?

Maybe, maybe not. It's hard to say without knowing anything else. But I have been running it on a stock clutch and it has been nothing short of amazing in feel. I have a lot of other transmission work as well, but I can definitely tell the difference with this fork in the pedal feel.

FRS Johnny · 10-05-2016, 01:49 AM

Quote:

Originally Posted by VeloxEric

What @churchx said. This does not sound like a problem that can be fixed with a clutch fork.

Thanks,
Eric

You think there are any solutions to this? Maybe a different fluid? I'm using motul already... Should I invest in another transmission just in case?

09-14-2016, 02:54 AM	#114
VerusEric Join Date: Mar 2015 Drives: BRZ, STI, GT350R, Supra, 987.2 Location: Indiana Posts: 1,146 Thanks: 567 Thanked 2,529 Times in 780 Posts Mentioned: 87 Post(s) Tagged: 3 Thread(s)	So here's something interesting that happened to this clutch fork pivot, a local car at that! The last picture is what makes me question what broke what. Which part broke first (TOB or Pivot) to cause the fork to rub against the bell housing. I don't truly have an answer, my guess would be TOB started to fail, causing a bending moment to be placed on the pivot which caused the pivot to ultimately fail. That's just a guess though, car has over 120k miles on it. He drove the car like this for 20 or so miles to get it home one day, then to the shop the next. Thanks, Eric Last edited by VerusEric; 08-29-2017 at 06:06 PM.

09-16-2016, 10:21 PM	#117
Kiske Senior Member Join Date: Jun 2013 Drives: RX-7 / BRZ Location: USA Posts: 2,349 Thanks: 1,031 Thanked 2,501 Times in 1,081 Posts Mentioned: 27 Post(s) Tagged: 0 Thread(s)	@VeloxEric, any idea when the next batch of forks will be ready? Back order status problems __________________ //2013 World Rally Blue BRZ Limited FBM Turbo--gone //2018 Crystal White Pearl BRZ Ts 2.2l Harrop Supercharged

09-19-2016, 05:02 PM	#120
Kris86 Senior Member Join Date: Feb 2013 Drives: RHD Gt86 Location: Antigua, west indies Posts: 369 Thanks: 619 Thanked 102 Times in 75 Posts Mentioned: 6 Post(s) Tagged: 0 Thread(s)	when will these be back in stock? I check ft86speedfactory and it says back ordered __________________ Toyota - Making Dreams A Reality 461hp on 91octane - JDL turbo GTX3076r GEN 2 - Mazworx CD009 transmission

10-04-2016, 09:18 PM	#122
FRS Johnny Senior Member Join Date: Feb 2013 Drives: 2013 FR-S Whiteout MT Location: Orange County CA Posts: 535 Thanks: 102 Thanked 79 Times in 67 Posts Mentioned: 3 Post(s) Tagged: 0 Thread(s)	So if I'm on the freeway above 60mph and I down shift from 6 to 5, 5th will grind. Do you guys think this clutch fork will solve the issue? __________________ When in doubt, throttle out!

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10-04-2016, 09:51 PM	#123
churchx Senior Member Join Date: Mar 2015 Drives: 2014 GT86 Location: Latvia, Riga Posts: 4,334 Thanks: 696 Thanked 2,086 Times in 1,436 Posts Mentioned: 53 Post(s) Tagged: 1 Thread(s)	If all the other gear changes are fine, imho problem is not clutch related, but rather worn synchros of that gear.

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