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[ZR1] Billet slave bearing support ?? Picture of stock 64k mile plastic

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Old 11-17-2018, 07:24 PM
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quickone87
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Default Billet slave bearing support ?? Picture of stock 64k mile plastic

Getting ready to put the new engine in. Will be in the 800 hp range, should I just spend the $80 and buy the aluminum support ? I've seen some bad looking pictures of the stock plastic .
here is my stock support out of my 2010 ZR1 with 65,000 miles. Looks perfect. I have a new slave to put in while in there but not sure if its nescarry to take it apart and upgrade it?




Old 11-17-2018, 09:09 PM
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rio95
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I ride the crap out of my clutch at the track and I’ve never had a problem with stock. If mine survives pretty much no one should worry about it too much. If you’re just street driving I definitely wouldn’t worry about it.
Old 11-17-2018, 10:20 PM
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Apocolipse
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Usually melting is from aftermarket clutches setup with higher preload than stock
Old 11-18-2018, 07:11 AM
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Unreal
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Originally Posted by Apocolipse
Usually melting is from aftermarket clutches setup with higher preload than stock
This. Have not seen a decent setup clutch ever hurt one. It is a symptom of a clutch issue, not a problem with the bearing, but do whatever you want.
Old 11-18-2018, 07:23 AM
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rio95
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Originally Posted by Apocolipse
Usually melting is from aftermarket clutches setup with higher preload than stock
And you should have no preload... so yeah if you have higher than stock preload (higher than zero) you can definitely hurt this sleeve
Old 11-18-2018, 01:58 PM
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quickone87
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Originally Posted by rio95


And you should have no preload... so yeah if you have higher than stock preload (higher than zero) you can definitely hurt this sleeve
I'm installing the rxt which I have measured the height of compared to stock (identical). So I'm assuming it's the strength of the the springs or fingers that determine the preload ?
Old 11-18-2018, 02:49 PM
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Yah, my bad.

Either way, only way I've seen bearings melt is improper clutch setup.

Last edited by Unreal; 11-18-2018 at 06:26 PM.
Old 11-18-2018, 03:30 PM
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Apocolipse
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The bearing is for sure preloaded - hence the spring under the rubber sheath. The issue comes when its TOO preloaded and the fingers are being pressed by bottoming the piston out - similar to keeping your foot pressed on the clutch pedal always.
Old 11-18-2018, 05:00 PM
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quickone87
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Originally Posted by Apocolipse
The bearing is for sure preloaded - hence the spring under the rubber sheath. The issue comes when its TOO preloaded and the fingers are being pressed by bottoming the piston out - similar to keeping your foot pressed on the clutch pedal always.
this makes sense to me, that spring under the sheath keeps the throw out bearing in constant contact with the clutch. So if the clutch stack heights are the same, I'd think there'd be no problem

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