Drivetrain Transmission, LSD, Clutch, Driveline, Axles...

KY 4+ Clutch

Thread Tools
 
Search this Thread
 
Old 06-30-2017, 05:50 PM
  #26  
Former Vendor
iTrader: (24)
 
TurboTechRacing's Avatar
 
Join Date: 01-28-05
Location: On Here
Posts: 13,714
Received 40 Likes on 34 Posts
Question is what did they (customer) ask for? If they asked for a stage 4 full face and it failed, how can KY know what your goals are?

If you stated I want 500 lbs torque up front and let them tell you what you need, that is a different story. If this was the case, then we agree they should set a higher standard for what power is being asked to hold.
Old 06-30-2017, 09:25 PM
  #27  
Senior Member
iTrader: (3)
 
63 Nova SS's Avatar
 
Join Date: 06-12-12
Location: Indiana
Posts: 5,485
Received 316 Likes on 296 Posts
Very true, I just assumed they knew the power goals. Maybe they didn't
Old 06-30-2017, 10:04 PM
  #28  
Moderator
Platinum Member
Moderator
iTrader: (3)
 
Snail_SS's Avatar
 
Join Date: 04-18-14
Location: El Paso, TX
Posts: 16,465
Received 603 Likes on 561 Posts
It all depends what the clutch are rated for if they are within the power they are planning on having they should hold

Last edited by Snail_SS; 06-30-2017 at 11:03 PM.
Old 06-30-2017, 11:00 PM
  #29  
Junior Member
 
08VRSS's Avatar
 
Join Date: 07-06-12
Location: Houston TX
Posts: 485
Received 7 Likes on 6 Posts
I was told the 4+ was rated for around 565ctq. So I was either misdirected or there was a pp issue. Either way switching the clutch was easy on jack stands with hand tools if you've done it at least once.

I remember reading in the TTR clutch thread they didn't want to offer full face disks bc of tq capacity. Maybe there is a reason the 4+ isn't on their website, not sure if we played Guinea pig or not. James mentioned he had it on his car or something and it held up fine with a lot of power. I actually ordered a stage 3+ from him but they sent me a stage 4+ for some reason.


as far as long term changes, maybe TTR can ask Chris if there has been many failures with the full face disks idk.

Last edited by 08VRSS; 06-30-2017 at 11:09 PM.
Old 07-01-2017, 04:06 PM
  #30  
Senior Member
Thread Starter
iTrader: (3)
 
T-Man's Avatar
 
Join Date: 12-07-09
Location: The Desert
Posts: 1,461
Received 89 Likes on 76 Posts
Originally Posted by TurboTechRacing
Question is what did they (customer) ask for? If they asked for a stage 4 full face and it failed, how can KY know what your goals are?

If you stated I want 500 lbs torque up front and let them tell you what you need, that is a different story. If this was the case, then we agree they should set a higher standard for what power is being asked to hold.
When I called and spoke with Martin, I stated that I needed something capable of 500lb/ft or better and somewhat daily driver friendly. I told them I had a turbo that spooled like stock/hit hard. He mentioned that they had been having some good luck with their S3 and S4+. After having driven a S3 before, I didn't want that and inquired further about the S4+, mentioning that I had seen someone recently post about it. Martin stated that the S4+ was easily capable of 550+ lb/ft and would have smoother driving characteristics.

all that aside, I'm too far into this to just say F it and give up. I'm grateful for the service I've received and will try again now that 08VR has given me a little help with how to more easily swap the clutch.
​​
Old 07-01-2017, 05:06 PM
  #31  
Senior Member
iTrader: (3)
 
63 Nova SS's Avatar
 
Join Date: 06-12-12
Location: Indiana
Posts: 5,485
Received 316 Likes on 296 Posts
Did he tell you to just leave it on jackstands and get a couple of treadmills to break it in?
Old 07-01-2017, 07:12 PM
  #32  
Senior Member
Thread Starter
iTrader: (3)
 
T-Man's Avatar
 
Join Date: 12-07-09
Location: The Desert
Posts: 1,461
Received 89 Likes on 76 Posts
Originally Posted by 63 Nova SS
Did he tell you to just leave it on jackstands and get a couple of treadmills to break it in?
Hahahahaha I like you man 👍
Old 07-07-2017, 04:56 PM
  #33  
Senior Member
 
Tdubbs's Avatar
 
Join Date: 09-18-15
Location: Battle Creek, MI
Posts: 725
Received 89 Likes on 82 Posts
So T-Man, have you had a chance to get it apart and see what went wrong yet?
Old 07-07-2017, 06:05 PM
  #34  
Senior Member
Thread Starter
iTrader: (3)
 
T-Man's Avatar
 
Join Date: 12-07-09
Location: The Desert
Posts: 1,461
Received 89 Likes on 76 Posts
Originally Posted by Tdubbs
So T-Man, have you had a chance to get it apart and see what went wrong yet?
No, clutch hasn't arrived yet (didn't ship out until Wednesday). Planning to throw it up on a lift and save a little time this go-around
Old 07-07-2017, 06:36 PM
  #35  
Senior Member
 
Tdubbs's Avatar
 
Join Date: 09-18-15
Location: Battle Creek, MI
Posts: 725
Received 89 Likes on 82 Posts
Originally Posted by T-Man
No, clutch hasn't arrived yet (didn't ship out until Wednesday). Planning to throw it up on a lift and save a little time this go-around

Don't blame ya. When you do get it out post pics for us to see. I'm interested in seeing what happened
Old 07-08-2017, 07:43 AM
  #36  
Senior Member
iTrader: (3)
 
63 Nova SS's Avatar
 
Join Date: 06-12-12
Location: Indiana
Posts: 5,485
Received 316 Likes on 296 Posts
^ me too
Old 07-21-2017, 02:55 PM
  #37  
Senior Member
Thread Starter
iTrader: (3)
 
T-Man's Avatar
 
Join Date: 12-07-09
Location: The Desert
Posts: 1,461
Received 89 Likes on 76 Posts
Didn't get a chance to use a lift but did work on the car slowly throughout the week. Got my hands on a transmission jack and my god, it made things so much easier, both coming out and going back in. Literally stabbed her back in on the first try!

Here's what came out. You can see on the pressure plate that it cracked on the inside and outside, all the way around. The disc itself is barely making contact and you can see that it put some nice hotspots on the flywheel. You can also see the disc itself had to have been bouncing around in there as I assumed because there was all kinds of marks and damage to the disc as well as the rivets that hold it together











Old 07-21-2017, 04:19 PM
  #38  
Senior Member
iTrader: (29)
 
royce777's Avatar
 
Join Date: 06-28-08
Location: Pittsburgh, PA
Posts: 9,444
Received 222 Likes on 182 Posts
that's brutal! hows the turbo doing for you?!
Old 07-21-2017, 04:21 PM
  #39  
Senior Member
iTrader: (29)
 
royce777's Avatar
 
Join Date: 06-28-08
Location: Pittsburgh, PA
Posts: 9,444
Received 222 Likes on 182 Posts
Also I would use a factory LNF TOB, from my understanding the ones with the green dust boot can cause problems.
Old 07-21-2017, 05:19 PM
  #40  
Senior Member
Thread Starter
iTrader: (3)
 
T-Man's Avatar
 
Join Date: 12-07-09
Location: The Desert
Posts: 1,461
Received 89 Likes on 76 Posts
Originally Posted by royce777
that's brutal! hows the turbo doing for you?!
Yeah man, for sure. Turbo is great but I haven't been able to enjoy it for a while now!

Originally Posted by royce777
Also I would use a factory LNF TOB, from my understanding the ones with the green dust boot can cause problems.
One of the first things I did was purchase an LNF TOB and new clutch pipe for the replacement clutch KY sent me.

So far, I've got about 125 city/stop and go miles on the stage 5 PP/6 puck setup and it's been great! Pedal pressure is drastically increased but I like it. It almost has a spring type bounce return, which is perfect for the way I like to drive. I like to get off of the clutch as quickly as possible and this definitely allows for that without abrupt engagement.

One thing I don't like is that inability to easily slip the clutch. My new home has a decently steep driveway and it chatters real bad when pulling into my garage. Oh well!
Old 07-21-2017, 06:05 PM
  #41  
Junior Member
 
08VRSS's Avatar
 
Join Date: 07-06-12
Location: Houston TX
Posts: 485
Received 7 Likes on 6 Posts
Just FYI, the green one ky sends is a Saab TOB, not the lsj, it's fine. It's working with my frankenclutch no problem, as I didn't change it. My replacement is holding like Chuck Norris' hands gripping the flywheel now.

The chatter will go away after break in miles, mine was not easy to slip at first, now with like 900 miles it's fine and easy to slip.
Old 07-21-2017, 07:53 PM
  #42  
Senior Member
Thread Starter
iTrader: (3)
 
T-Man's Avatar
 
Join Date: 12-07-09
Location: The Desert
Posts: 1,461
Received 89 Likes on 76 Posts
Originally Posted by 08VRSS
Just FYI, the green one ky sends is a Saab TOB, not the lsj, it's fine. It's working with my frankenclutch no problem, as I didn't change it. My replacement is holding like Chuck Norris' hands gripping the flywheel now.

The chatter will go away after break in miles, mine was not easy to slip at first, now with like 900 miles it's fine and easy to slip.
All I know, regarding the TOB, is that my car isn't making the thumping noises anymore. So I'm good with that!

Yeah, I figured the chatter would get better as it broke in with more miles. If not, I'm going drive the car into a wall and jump just before impact

I've found the best way to reduce the likelihood of chatter when taking off in 1st gear is to blip the throttle and quickly release the clutch. Seems to work really well. Curious to know how you're doing it?
Old 07-23-2017, 09:34 PM
  #43  
Junior Member
 
08VRSS's Avatar
 
Join Date: 07-06-12
Location: Houston TX
Posts: 485
Received 7 Likes on 6 Posts
Same way, I never hold a constant rpm when taking off, usually a few quick blips while smoothly releasing. Works every time. I'm on 29psi and it's doing great. Switching to e47 in the coming weeks.

Last edited by 08VRSS; 08-02-2017 at 10:08 AM.
Old 07-30-2017, 10:04 PM
  #44  
Senior Member
Thread Starter
iTrader: (3)
 
T-Man's Avatar
 
Join Date: 12-07-09
Location: The Desert
Posts: 1,461
Received 89 Likes on 76 Posts
Went WOT for the first time the other day after a little over 400 miles of city driving. Clutch held great and felt good.

Let's see how many miles I can get out of it
Old 07-31-2017, 08:47 AM
  #45  
Moderator
Platinum Member
Moderator
iTrader: (3)
 
Snail_SS's Avatar
 
Join Date: 04-18-14
Location: El Paso, TX
Posts: 16,465
Received 603 Likes on 561 Posts
Good to hear man!
Old 07-31-2017, 06:57 PM
  #46  
Former Vendor
iTrader: (24)
 
TurboTechRacing's Avatar
 
Join Date: 01-28-05
Location: On Here
Posts: 13,714
Received 40 Likes on 34 Posts
Glad, all is well.
Old 08-10-2017, 04:43 PM
  #47  
Senior Member
Thread Starter
iTrader: (3)
 
T-Man's Avatar
 
Join Date: 12-07-09
Location: The Desert
Posts: 1,461
Received 89 Likes on 76 Posts
After crossing the 700 mile marker, almost all chatter has disappeared and the engagement point has improved. At first, it was closer to the top. It's now moved down to the middle (like stock) and I find that it's much improved over the 4+ overall.

#feelsgoodman
Old 08-10-2017, 04:49 PM
  #48  
Senior Member
 
Tdubbs's Avatar
 
Join Date: 09-18-15
Location: Battle Creek, MI
Posts: 725
Received 89 Likes on 82 Posts
Originally Posted by T-Man
After crossing the 700 mile marker, almost all chatter has disappeared and the engagement point has improved. At first, it was closer to the top. It's now moved down to the middle (like stock) and I find that it's much improved over the 4+ overall.

#feelsgoodman
Glad it's working out the way it should




All times are GMT -4. The time now is 09:53 PM.