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What clutch are you 500+ RWHP cars running?

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Old 03-27-2008, 08:27 PM
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Default What clutch are you 500+ RWHP cars running?

My setup EVENTUALLY is going to be a forged 347 turbo making around 520-560 RWHP. This car won't see 4k+ rpm launches. I'm having the transmission rebuilt in the next couple of weeks, but I also need to upgrade that LS6 clutch. What have you guys been using? I'm thinking about Cartek, Textralia, MAYBE spec 3+, etc. I had a Tex OZ700 on my 415rwhp car and it did good. But I'd like to stay away from those $1000+ clutch kits.
Old 03-28-2008, 06:37 AM
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I got a 3+, its a pretty damn good clutch, especially for the price.
Old 03-28-2008, 07:37 AM
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I ran the LS7 in my CETA
Old 03-28-2008, 08:15 AM
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Im in the same boat as you... I doubt ill have 500 rwhp, but Im doing a cam swap and hope to be making more than I am now lower in the RPM band. Im starting to lean towards the LS7, since I wont be seeing the track THAT much. And honestly, without a cage I wont be able to go faster than 11.50 anyway. So I can ease off the line if need be.

I cant bring myself to spend 1000 on the tex...although I really want it. Im one of those "do it once, do it right" kidn of guys. I might only have 500hp, but i want a clutch thats good up to 800...know what i mean?

I guess Im going to look more into the LS7, and get an idea of where Ill be after my cam swap then decide.

J.
Old 03-28-2008, 08:41 AM
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Check out the Centerforce Dual Friction. It definitely seems to be the best bang for the buck right now.

I run a RAM Dual and it's a great clutch but it's also $1,200.
Old 03-28-2008, 09:00 AM
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I would go the LS7 route before I'd go Centerforce. Your really gonna want a 3+ or Tex. though. Even if you don't launch hard you don't want to be smokin the clutch at full boost either.
Old 03-28-2008, 01:03 PM
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I'm running a Mcleod twin, but that's because my car will be seeing nitrous pretty soon.
Old 03-28-2008, 04:24 PM
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the centerforce DF went out on my old car and that was 130rwhp less than my goal. so I'm going to pass on it. I don't know how much the LS7 will hold since I've heard some guys saying the zo6 guys clutches were starting to slip after some good mods. Spec 3+, Textralia OZ700, Textralia Exo, McLeod twin disc, Cartek seems like good clutches right now. I might just get another OZ700 since I paid less than $1000 with the flywheel disc & pressure plate through the classifieds on one. I think they're rated at 600, but I don't know if that's flywheel or at the wheel. Anyone else out there running a good clutch? Seems like Spec 3+ are almost like the 10 bolt situation, some hold & some don't.
Old 03-29-2008, 07:48 PM
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anyone else? wonder if the ls7 clutch kit will hold 530rwhp?
Old 03-29-2008, 08:00 PM
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Originally Posted by candlelit
anyone else? wonder if the ls7 clutch kit will hold 530rwhp?
I hope so.... Mine gonna be under 500whp
Old 03-29-2008, 10:02 PM
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yeah. I've been randomly checking out your thread over there & seems like people keep talking spec 3+ on it. Sure, it's affordable. But from the company itself, not certain clutch discs & whatnot they make, many guys I've heard that don't put out HUGE power hate Spec with a passion. If the company has that much fued against them, then it's definitely not attracting me to buy a product from them. I really like some talk of this Cartek clutch, but once I heard a guy who works for one of the sponsors said he blew his up kinda made me look at more options. It seems that under 460rwhp this LS7 clutch is almost unbeatable. But what's the next upgrade from it?? That Textralia Z grip maybe?? It's kinda expensive. The McLeod twin is talked about on the good side, but it's also expensive. One of the locals said he bought a brass built clutch at a local company (who I looked in to, they have a few distributors in many places) for REALLY cheap & said it's taken his 600+RWHP like a champ for the money, but it was a "temporarily" clutch til he affords the McLeod twin.

Last edited by candlelit; 03-29-2008 at 10:08 PM.
Old 03-29-2008, 10:39 PM
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Originally Posted by candlelit
anyone else? wonder if the ls7 clutch kit will hold 530rwhp?
I put the LS7 clutch from my 346 in my 408 when i did the swap initially (#'s in sig). It wasn't slipping like crazy, but it did feel a little soft when banging gears. It probably would have lasted a bit little longer but I had to get the tranny rebuilt so I took the opprotunity to put a twin disk in.
Old 03-29-2008, 10:59 PM
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I running 10.5#'s on a ls6 with a spec 3+, I have put 2k on it since I had the car and there was about 10k on it before I bought the car. only a few track passes on it really.

seems to be holding up just fine though. this is the first spec I have had on a v8, however I have had used them on plenty of 4,6 cly. turbo cars and have never had a problem with them holding.

just my 2 cents.
Old 03-29-2008, 10:59 PM
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Originally Posted by transAm-98
I put the LS7 clutch from my 346 in my 408 when i did the swap initially (#'s in sig). It wasn't slipping like crazy, but it did feel a little soft when banging gears. It probably would have lasted a bit little longer but I had to get the tranny rebuilt so I took the opprotunity to put a twin disk in.
Im gonna be using 5.3 stage 2.5s and a Torquer 3 in a 402, with some pacesetters and magnaflow catback and ls6 manifold, aluminum fw, moser 12 bolt and 25% udp..... so I dunno what numbers Ill be putting down, but definitely under 480whp... LS7 should last me for a couple thousand more I think before I go with a new clutch as well

Text, mcleod, spec 3+ or whatever I choose...
Old 03-30-2008, 03:40 AM
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I MIGHT opt for the spec 3+. seems like it's the best (except for the twin they make) and spec users seem to think so. I know I can get one 1/2 affordable, but I'm still going to look for other clutches.

transam-98... awesome numbers! I about went the 408 route before I decided I wanted a good DD.
Old 03-30-2008, 03:58 AM
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Originally Posted by LSGunZ28
Im gonna be using 5.3 stage 2.5s and a Torquer 3 in a 402, with some pacesetters and magnaflow catback and ls6 manifold, aluminum fw, moser 12 bolt and 25% udp..... so I dunno what numbers Ill be putting down, but definitely under 480whp... LS7 should last me for a couple thousand more I think before I go with a new clutch as well

Text, mcleod, spec 3+ or whatever I choose...
I'd be curious to see how the LS7 clutch acts with an aluminum flywheel. I put it in with the stock LS2 fly and it was one heavy mother F%^ker. but it had pretty good street manners. But I do have to say that my twin with the aluminum flywheel revs like a totaly different motor. throttle response is instant
Old 03-30-2008, 08:24 PM
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Originally Posted by transAm-98
I'd be curious to see how the LS7 clutch acts with an aluminum flywheel. I put it in with the stock LS2 fly and it was one heavy mother F%^ker. but it had pretty good street manners. But I do have to say that my twin with the aluminum flywheel revs like a totaly different motor. throttle response is instant
well, although this is off subject..

when I got my H/C on my LS1, although I only drove it for one day... I didnt like the drivabilitly... the tune shoul dhave been alright and the cam wasnt too agressive, it was a torquer 3 and I used 5.3 heads stage 2.5 wiuth it, so it raised my SCR, so It should have made driveability better. But I personally didnt like it.. I never considered that maybe using the aluminum FW with such a cam could have made it not very driveable, maybe if I had on the stock steel FW I would have liked it better...

Also Im gonn akeep my aluminum FW cuz Im gonna use the same Torquer 3 cam in a 402, which should automatically be very driveable.. or do you think I should still stick with a steel FW?

Daily driver, but I road race and drag race the car and after slicks teh aluminum FW was just fine, didnt bog anymore, since I launched at 6000rpms...
Old 03-30-2008, 11:38 PM
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I'm still getting used to my aluminum flywheel and twin disk but so far I like it. Not as friendly as my LS7 but once you adjust your driving habits it's pretty smooth. The main thing i'm still getting used to is the engagement point, but i've been driving it to work all week to put miles on it and it's really not bad. The main thing I can't get over is how much better the throttle response is over the LS7 clutch.
Old 03-30-2008, 11:46 PM
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i am loggin in trying to find out what i will need also
Old 03-31-2008, 03:44 AM
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Originally Posted by transAm-98
I'm still getting used to my aluminum flywheel and twin disk but so far I like it. Not as friendly as my LS7 but once you adjust your driving habits it's pretty smooth. The main thing i'm still getting used to is the engagement point, but i've been driving it to work all week to put miles on it and it's really not bad. The main thing I can't get over is how much better the throttle response is over the LS7 clutch.
right, but that has more to do with the FW vs the clutch...


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