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Old 03-07-2014, 04:45 AM   #1
extransam
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Default Reviewed: South Bend Stage 2 Endurance Clutch *Buy this clutch*

After only having a Competition Stage 3 Ceramic clutch for a couple months, I needed something more DD friendly. After calling Yimisport, Andrewtech Automotive, and SBC, I went with the SBC Stage 2 Endurance. I am writing this because there are few reviews about this clutch, and more people need to know about it.

CLIFFSNOTES VERSION: Buy this clutch, it is the best clutch I have owned. Everything is balanced. Read below for more.

UPDATE August 2016: South Bend warrantied my feramic disc for their updated ceramic disc, go to Post #145 for details.

Holding power: 445ft/lbs (to the crank)
Car: 2004 WRX, 145k miles, 260 ft/lbs wtq

Why?
My goal is to have my car at 330whp/tq, which landed me right in between the Stage 2 Daily and Endurance. Now the ONLY difference between these two clutches is that the Endurance has a FERAMIC flywheel side. Everything else, the pressure plate, and the PP side of the disc, is the same between the Daily and the Endurance. The Daily holds 345 ft/lbs and the Endurance holds 445 ft/lbs, a claim of +100 tq for that feramic side. I was worried about engagement, but from the few reviews I could find, people said engagement was like-stock. So I took my chances and went for it. I also swapped out my lightweight flywheel to go back to stock; I enjoy shifting methodically too much.

Initial Break-In Impressions
WOW this pedal is soft. I have never driven anything like this, but this felt identical to an FRS/BRZ clutch if you have driven one. Engagement is smooth, closer to the end of the pedal. This clutch is VERY easy to drive. I could tell it needed to be broken in, so I took it easy for the first 300 miles (no full throttle, no 4000+ shifts). There is a tiny bit of chatter when starting from a standstill but I expect that to go away.

AFTER 300 Miles
This clutch is great.
1) Absolutely no signs of slippage, and I did not at all buy too much clutch.
2) It is predictable, easy to slip into gear if necessary, and somewhat forgiving.
3) Engagement is smooth yet noticeable.
4) Chatter is gone.
5) Pedal stiffened up a little bit (or I got more accustomed to it), which I prefer since it was a little too soft to begin with.

Would I recommend this clutch?
Absolutely. If you want to maintain your DD friendliness, and have up to 350-380 wtq, there is no reason not to try this out. It is not the most popular on the market, but that is fine with me. It has the holding power. Some people like aggressive clutches that feel like your tranny is kicking you in pants; this is your friendly comfortable clutch.

My only complaint: This does not yet have the confidence and perfect engagement that my ACT clutch had. That clutch was the easiest thing to race, DD, canyon carve, anything. I hope this one gets there with the more miles I pile on.

See below for pics, very high quality.





Pressure Plate side


Flywheel side


Resurfaced Flywheel:
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Last edited by extransam; 08-18-2016 at 03:19 AM.
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Old 03-20-2014, 01:50 PM   #2
NJ_wrx
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My stock clutch has started to slip so I need an upgrade. I've been perusing a lot of different brands and this one has come up a few times. I have an 09 wrx with roughly 300 tq at the wheels and I would like to eventually max at 350 tq at the wheels. The competition clutch series has mixed reviews with the negative ones having very bad stories so I'm definitely shying away from that brand. For me it's come to this very clutch or the Clutchmasters FX200. Thank you for your insight and keep us posted as the mileage piles on.

edit: when you purchased this clutch, did it come all the necessary components or did you have to get associated parts separately?
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Old 03-21-2014, 07:49 AM   #3
dingobite
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^^ Its should have all the parts i have a 6speed stg2 daily sitting here with everything i need to install it.
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Old 03-27-2014, 01:34 PM   #4
extransam
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Quote:
Originally Posted by NJ_wrx View Post

edit: when you purchased this clutch, did it come all the necessary components or did you have to get associated parts separately?
Yes it had everything I needed. Pressure Plate, Clutch Disc, TO Bearing, Pilot Bearing, and Alignment tool.

The horror stories you are probably reading about are people like me who have the feramic PP side of the disc, they are dropping their clutch HARD and the two materials are fusing together. This is a rare possibility and I think people who are abusing their cars like that must accept responsibility for potential failure. If you are not dropping your clutch at 4000rpm multiple times in a row, causing a lot of heat to be generated, then I think you are good.

Otherwise, just get their Stage 2 daily which holds 345 ft/lbs and has organic materials on both faces of the disc.

____________

I have put about 400 miles on the new clutch (I do not drive very much), and I still love it just as much as Day 1. I have gotten accustomed to how light it is, especially with how heavy my gas petal is. Still smooth engagement, no chatter, and very predictable when starting on a hill. Absolutely no regret with this clutch.
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Old 03-27-2014, 01:36 PM   #5
extransam
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Give the guys at SBC a call if you are hesitant (that is what I did).

They will give you the best insight on your specific setup.
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Old 03-27-2014, 01:39 PM   #6
extransam
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Here is a pic of the TO bearing, pilot bearing, that I never uploaded before:

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Old 03-28-2014, 11:10 AM   #7
rexworx
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Very Nice. SB makes amazing clutches. Keep us updated...
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Old 03-28-2014, 02:21 PM   #8
K.Linchpin
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I have this clutch. It is by far the best feeling and weighted clutch I've ever driven (on a Subaru). Firm sure shifts. Plenty of modulation available. And not heavy. I won't go to another brand for my Subaru.
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Old 03-28-2014, 10:05 PM   #9
scoobynewbie1
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I'm glad to I saw this review. I just ordered the exact same clutch earlier today. Can't wait to get it!
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Old 04-11-2014, 12:59 AM   #10
extransam
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Quote:
Originally Posted by scoobynewbie1 View Post
I'm glad to I saw this review. I just ordered the exact same clutch earlier today. Can't wait to get it!
is this now installed?? thoughts?
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Old 04-11-2014, 01:05 AM   #11
bjkeed21
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I have this clutch too, for my 2010 WRX, had it installed in June 2013. LOVE IT, for me, it was lighter than stock but gripped hard (able to chirp the tires on a perfect launch). I'm etuned, but my virtual dyno claims 305/325 wheel, so who knows, i dont really care lol. Might need to feather it a little bit to smoothen the engagement, but otherwise perfect.
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Old 05-21-2014, 05:40 AM   #12
extransam
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Short Update from the OP: This clutch now has about 2000 miles since I put it on in February. In the last 500 miles, it has started to develop a faint, yet noticeable "squeak" immediately as the clutch engages from a standstill. This occurred in both cold (50*F) and warm (90*F) temperatures, as well as after a cold start, and after having driven 50 miles.

It is hard to describe, I need to make a video, but when I tend to "slip" the clutch more from a standstill, the squeak/screech/grind is emitted. Nothing in the pedal feels different, the car does not drive any differently, but it was concerning. So I called South Bend.

Without me telling him which clutch I had, he guessed it was a Stage 2 Endurance, and said that they have had reports of it in the past, and it is not harmful. He said, "some cars develop it, regardless of make/model, some do not, we have known this for years, but it has not been consistent enough as a problem. It has to do with the feramic surface of the disc on the flywheel side."

I figured that much when two medal pieces are engaging. I can hopefully burn it off over time, as I have not been aggressive at all since I bought this clutch. It still engages very smoothly, like butter for how much torque it is rated at. Wahoo.

Anyone else have this issue?
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Old 05-27-2014, 11:20 AM   #13
Boxer4u
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I have the same squeak and same clutch, stage 2 endurance. I have about 15k miles on mine, and im still getting shuddering/chattering. I think it had to do with the shop that installed it
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Old 05-30-2014, 12:42 PM   #14
Subian
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Just curious, why not get the daily clutch that's rated to 350 ft/lbs?
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Old 06-05-2014, 01:07 AM   #15
extransam
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Quote:
Originally Posted by Boxer4u View Post
I have the same squeak and same clutch, stage 2 endurance. I have about 15k miles on mine, and im still getting shuddering/chattering. I think it had to do with the shop that installed it
What do you mean by shuddering/chattering? Like in a scary, something is broken way or a rough engagement way because it is a feramic dual friction disc? To me the squeak is not a bad thing, just annoying. It is a metal on metal friction.

Quote:
Originally Posted by Subian View Post
Just curious, why not get the daily clutch that's rated to 350 ft/lbs?
I looked at the Stage 2 Daily, but South Bend's torque ratings are to the crank, so if it holds 350btq, max it can hold 300wtq. I just needed more holding capacity. I have zero complaints about engagement and smoothness with this clutch.
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Old 06-05-2014, 01:36 PM   #16
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So do you guys recommend the stage 2 endurance? I am making 400wtq so I'm sure it will hold but I am a little concern with some of the issues.
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Old 06-05-2014, 01:39 PM   #17
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We've been shouting Southbend for a very long time. It's a great clutch. We've gone to using them almost exclusively.

Let us know if we can answer any questions or want to discuss options.
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Old 06-06-2014, 02:24 PM   #18
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Quote:
Originally Posted by Rev Works View Post
We've been shouting Southbend for a very long time. It's a great clutch. We've gone to using them almost exclusively. Let us know if we can answer any questions or want to discuss options.
Pm ya!
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Old 06-09-2014, 08:08 PM   #19
extransam
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Quote:
Originally Posted by kobitopr View Post
So do you guys recommend the stage 2 endurance? I am making 400wtq so I'm sure it will hold but I am a little concern with some of the issues.
Yes, with 400ft/lbs, I recommend it. My ONLY complaint is with the squeak that sometimes happens when the car gets warm, but it does not affect performance or ease of use.

PM me if you still have doubts.
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Old 07-05-2014, 01:05 PM   #20
extransam
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To add some color to the squeak here is a video with it. You can hear it right away at the start of the video (2:50) as the clutch has engaged.

https://www.youtube.com/watch?v=fG3l...utu.be&t=2m49s
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Old 07-05-2014, 03:42 PM   #21
dingobite
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I been driving on the stage 1 daily for the STI now for almost 2 weeks with a 20g this clutch has a much stronger feel or punch to it compared to the stock clutch that just feels like water it grabs really well at the engagement point.

I also have a act SF flywheel and the clutch still feels really strong, its also really nice the clutch acted like it was broken in from the start.

I had originally meant to get a stg2 daily maybe a 3 i somehow clicked the stg 1 by mistake i dont think im regretting my mistake.
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Old 07-08-2014, 03:21 PM   #22
extransam
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Do you worry about not having the holding power with stage1 daily?

I took the torque ratings pretty literally, which is probably why I bought too much clutch, but just curious as to what people's reasoning is when they buy something that is underrated for their car (according to the manufacturer).
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Old 07-09-2014, 07:40 PM   #23
dingobite
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Southbend under rates the torque values on all their clutchs so your actually getting more not less than they advertise. Id say this has about as much grip as my 05 wrx setup a Spec stg2+ stock flywheel as id compress the pedal in or out without the need to fight it, my spec wore down to the disc in just 10k miles that clutch was terrible.

My car was recently tuned from the ground up with the stg 1 daily hasnt slipped once in 1000 miles except going in reverse and once where i was constantly feathering the clutch under a red light i plan to see how far it will take me at about 350hp i assume im making 400 at the block.

^ I was smoking my sti stock clutch under the same conditions all the time and i made it to 45,000 miles thats the longest ive ever been without a need to replace the clutch. I had a new clutch put in when the motor was out.
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Old 07-10-2014, 02:58 PM   #24
extransam
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I have never heard a good thing about a Spec clutch.

I figure all manufacturers underrate their clutch holding capacity. But my fear of buyer's remorse that would hit me when I punch it at WOT and I get slippage... overcame my common sense to just get a clutch that is organic facing. Glad to hear it is holding it just fine though!
I know of OEM clutches that can hold your same level of power. All depends on the driver and conditions that the car is driven with.

Stage 2 Endurance holds 440ft/lbs which is WAY more than I will ever need.
South Bend estimated that the feramic flywheel side of the plate gives +100 ft/lbs, I went with it just to be safe, and it still drives great, but the squeak is annoying.

Stage1 Daily must be like butter...
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Old 08-25-2014, 08:49 PM   #25
BigRob74
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bumping this because my clutch is on its way out and im trying to decide a southbend stage 3 daily or the act setup. you southbend buys still liking it? i dont want a lightweight flywheel did you guys just buy a new oem or resurface the factory one?
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