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Old 07-30-2013, 03:35 PM   #1
bswilmington
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321WHP 422WTQ dynojet SAE

Default Quest for strong solid disk clutch.

Im in need of another new clutch. One I installed isn't as strong as I thought. So im looking at the ACT SB10-XTSS. Per ACT website its suppose to hold 565 ft lbs and Im going to assume this is flywheel. Also this clutch uses new monolock and I have read one or 2 mixed reviews but not enough info to really determine whether I want to use it yet.

Little story behind the car, its on a Blouch Dom 1.5 and im currently tuning it. It made 380 wtq in 3rd gear, so I expect it to make atleast 420-450 wtq in 4th. Im curious if this is enough of clutch or do I have to go puck again?

I had a sprung 6 puck in the car and didnt really like it since car didnt launch good. Car is used for autox and drag strip and I would like smoother launch than the last ACT 6 puck I had. So I went back to full disk, not made by ACT, but it didnt hold. I would perfer to stay with solid disk if I can.

Any info on this clutch or any other that is capable of holding the trq would be great.

Brandon
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Last edited by bswilmington; 02-20-2014 at 12:22 PM.
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Old 07-31-2013, 02:00 AM   #2
Shakes
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Assuming 450wtq and a 25% drivetrain loss, that puts you at ~600 ft lb engine tq. I would call ACT and talk to them but just off of the numbers, if it holds, it won't be for long.

If they're rating at wtq numbers then you would be at 79% and should be good to go.
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Old 07-31-2013, 11:32 AM   #3
bswilmington
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Quote:
Originally Posted by SHAKES View Post
Assuming 450wtq and a 25% drivetrain loss, that puts you at ~600 ft lb engine tq. I would call ACT and talk to them but just off of the numbers, if it holds, it won't be for long.

If they're rating at wtq numbers then you would be at 79% and should be good to go.
Not to worried about life as long as its reasonable. I expect atleast 15k miles out of clutch, any more is iceing on the cake. My stock one had 30k when I bought it and I put about 10k on it with 420wtq before it finally slipped at drag strip. Stock clutch did alot of dyno pulls at 420wtq, quite a few autox (10+) and atleast 2 trips to drag strip before it went. Thats why im surprised aftermarket one gave out before that.
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Old 07-31-2013, 12:02 PM   #4
Shakes
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If the stocker held up that much then that one should be fine then. Hell, it sounds like an HDSS would work. Have you ever used an XTSS? Great quality but damn, your ankle will get beefed up quick.
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Old 07-31-2013, 12:34 PM   #5
bswilmington
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Originally Posted by SHAKES View Post
If the stocker held up that much then that one should be fine then. Hell, it sounds like an HDSS would work. Have you ever used an XTSS? Great quality but damn, your ankle will get beefed up quick.
I drove HD 6 puck for about 40k. Haven't drove XT yet but not to worried about stiffness cause I drive auto legacy for a daily.

I don't want to trust stock clutch at these power levels as my luck it would give out quickly. I just would like to get atleast 15k out of clutch. I beat the crap out of my car so I'm use to replacing parts like clutches.
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Old 12-05-2013, 10:35 PM   #6
Wrinkleboi
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I'm between this and the SB10-HDSS on a built motor with Dom 1.5XTR and all the fix ins... assuming the difference is in the stiffness of the pressure plate but engagement should be similar on both with a full disc.
If anyone has input on either please speak up!
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Old 12-06-2013, 09:20 AM   #7
bswilmington
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I emailed ACT and South Bend Clutches with same email basically saying estimate wheel trq should be 420-450 range. ACT told me this clutch should be on the edge and may be to weak. It was rated at 565 flywheel trq.

SB told me there stage 3 daily would be perfect for my application. It's rated 595 flywheel trq and they claimed it was unrated so it should be perfect. So now I got the south bend in last night, just need to find some time to put it in now.
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Old 01-07-2014, 10:13 PM   #8
yamahaSHO
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I am currently hunting for a clutch as well. My 34k mile original clutch started slipping at 430+ wtq, so I'm looking for something to hold the power (probably 450-470 on the upper end, if I get greedy), but it's a street car and would like it to have some decent manners. I've driven an XTSS and although it wasn't bad, if I can get away with a slightly lighter clutch, I would like to. For this reason, I've been trying to find what people have been holding on the HDSS.
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Old 01-17-2014, 11:52 PM   #9
Half Crazed
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Hey bswilmington, what's your thoughts on that clutch? Did you get the FJK1000-SS-O?

Where'd you get it from -- can you pm me a link?
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Old 01-18-2014, 06:29 PM   #10
bswilmington
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321WHP 422WTQ dynojet SAE

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Quote:
Originally Posted by Half Crazed View Post
Hey bswilmington, what's your thoughts on that clutch? Did you get the FJK1000-SS-O?

Where'd you get it from -- can you pm me a link?
I haven't had chance to put it in yet, been busy fixing everyone else's
Hopefully if all goes well I will be doing it next weekend.

Here is who I buy all my parts through now days. Local guy to me, but can ship to you or anyone else just as easy. Easiest/fastiest way is to contact him through FB https://www.facebook.com/directperformance1
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Old 01-19-2014, 08:15 PM   #11
Half Crazed
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Quote:
Originally Posted by bswilmington View Post
I haven't had chance to put it in yet, been busy fixing everyone else's
Hopefully if all goes well I will be doing it next weekend.

Here is who I buy all my parts through now days. Local guy to me, but can ship to you or anyone else just as easy. Easiest/fastiest way is to contact him through FB https://www.facebook.com/directperformance1
Thanks, contacted him.. told me 650 shipped, but I can get it for closer to 600 shipped on a few other sites..
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Old 01-19-2014, 08:35 PM   #12
bswilmington
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2006 Sti 12.68 @ 108
321WHP 422WTQ dynojet SAE

Default

Quote:
Originally Posted by Half Crazed View Post
Thanks, contacted him.. told me 650 shipped, but I can get it for closer to 600 shipped on a few other sites..
He may price match. Let him know where you found it and for how much.
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Old 02-20-2014, 12:26 PM   #13
bswilmington
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Join Date: Jul 2009
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Location: Eden NC
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2006 Sti 12.68 @ 108
321WHP 422WTQ dynojet SAE

Default

Quote:
Originally Posted by Half Crazed View Post
Hey bswilmington, what's your thoughts on that clutch? Did you get the FJK1000-SS-O?

Where'd you get it from -- can you pm me a link?
Ok I put in South Bend STG 3 DD clutch. So far Im still breaking it in with around 400 miles on it, but from first clutch release this thing has been silky smooth. No chatter at all. The pedal is firm but nothing crazy. I sit at stop lights with my foot on clutch. So far I'm really impressed with driveability of this clutch and as long as it holds power, I think I have found my clutch company of choice. I'll give longterm feedback once I get a few more miles on it.
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