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Need input on those with LS7 clutch set-ups

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Old 11-21-2007, 08:58 PM
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Hey I have had the clutch for about 10k now it holds great and I dont run at the track much either, I would replace all the Hydraulic stuff in it if you havent already done it, the only part I dont like about the clutch is the heavy *** ls2 flywheel if you could find a steel lighter one I would get it it just seems like the car doesnt rev as quick as it used too and it takes a little more rpm to launch.
Old 11-21-2007, 09:00 PM
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P.s. I have a friend that dynos 468 rwhp and has clutch dumped at 5k rpm on 275 nitto drag radials and he has an ls7 and it held!
Old 11-21-2007, 09:24 PM
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Thanks for all the replies everyone . I feel better about going with the LS7. So how much heavier is the LS2 flywheel?

Yeah lots of good replies Jonas..thanks .

Chaz....no I havent gotten the hood painted and it wont be till this coming spring. I still need the phone number for that shop you told me about please .
Old 11-22-2007, 12:51 AM
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Originally Posted by just1news6
Hey I have had the clutch for about 10k now it holds great and I dont run at the track much either, I would replace all the Hydraulic stuff in it if you havent already done it, the only part I dont like about the clutch is the heavy *** ls2 flywheel if you could find a steel lighter one I would get it it just seems like the car doesnt rev as quick as it used too and it takes a little more rpm to launch.
a heavier flywheel should actually make it easier to launch at lower RPM's, since it has more inertia built up as rotating mass.

a lighter flywheel will definitely rev faster, but it will also take more RPM's to launch it without bogging.
Old 11-22-2007, 09:27 AM
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Exactly. I personally think my car takes off so much easier since the install. There less bog off the line plus it feels smoother launching hard
Old 11-22-2007, 09:55 AM
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Originally Posted by Flamin' bird
Thanks for all the replies everyone . I feel better about going with the LS7. So how much heavier is the LS2 flywheel?

All of your technical questions are answered here.

https://ls1tech.com/forums/manual-transmission/816229-all-you-need-know-about-ls7.html
Old 11-24-2007, 10:50 AM
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Thanks. I'd seen that post before....forgot about it.
Old 11-24-2007, 12:49 PM
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Originally Posted by Flamin' bird
Thanks. I'd seen that post before....forgot about it.

No prob. I stumbled onto it after reading your post and figured it would help out.
Old 11-26-2007, 09:39 AM
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Yea, don't even worry about the weight difference. I picked up E.T & MPH after my install so the weight doesn't hurt it at all. I'd only run a lightened flywheel on a track only car. This extra weight in a street car is great for smoother shifting & I have even noticed its easier to shift at higher RPMs too.
Old 11-26-2007, 11:16 AM
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If GM puts it in their supercar then it has to be good .
Old 11-28-2007, 04:26 PM
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A full season of abuse. 6K dumps all good see 60' time in sig
Old 11-30-2007, 08:28 PM
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another satisfied user right here.
Old 11-30-2007, 09:16 PM
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Thanks for all the input and replies everyone . It's muchly appreciated. I will be getting the LS7 for sure.... after Christmas. .
Old 11-30-2007, 09:19 PM
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You will not be disappointed as long as you follow the normal break in for a new clutch. Although OEM clutches are not as finicky as aftermarket ones.
Old 12-01-2007, 01:48 PM
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get it ive had mine for a while an it oulls so crazy its a great clutch
Old 12-01-2007, 02:53 PM
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I just got through the break in period about 200 miles ago and I've done 1 or 2 hard runs up to 100 and it holds so well. I was shifting at 6700 RPM's and it wasn't giving me any problems



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