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The new ZR1 clutch.

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Old 01-05-2008, 10:56 AM   #1
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Default The new ZR1 clutch.

I read that the new ZR1 is going to have a twin disk so I got to thinking is this going to be the next "best" clutch to use in our F-Bodies? I'm assuming it will be very streetable and if it will hold 620 HP it should be the perfect street/strip setup. Any thoughts?
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Old 01-05-2008, 11:33 AM   #2
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I think it would be badass.
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Old 01-05-2008, 12:28 PM   #3
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It will never work, and here's why:

Quote:
Nestled inside the cylinder block is a forged steel crankshaft that delivers the LS9's 3.62-inch (92 mm) stroke. It features a smaller-diameter ignition-triggering reluctor wheel and a nine-bolt flange - the outer face of the crankshaft on which the flywheel is mounted - that provides more clamping strength. Other non-supercharged 6.2L engines, such as the base Corvette's LS3, have a six-bolt flange. A torsional damper mounted to the front of the crankshaft features a keyway and friction washer, which also is designed to support the engine's high loads.
Source: http://www.vetteweb.com/tech/vemp_07...ils/index.html
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Old 01-05-2008, 12:45 PM   #4
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I'm wondering if that information should be made a sticky? I have a feeling a LOT of people are going to be asking this same question.
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Old 01-05-2008, 01:32 PM   #5
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Quote:
Originally Posted by MeentSS02 View Post
I'm wondering if that information should be made a sticky? I have a feeling a LOT of people are going to be asking this same question.
Damn good info. What a big disappointment.

I agree on the sticky.
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Old 01-05-2008, 01:41 PM   #6
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Quote:
Originally Posted by TheLS1Kid View Post
Damn good info. What a big disappointment.
I felt the same way GMPP would stand to make a lot of money if they made a dual disk clutch like this that would work on the older Gen III and IV engines...it would be perfect for 95% of people out there doing moderate performance builds.
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Old 01-05-2008, 01:46 PM   #7
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I wonder if the clutch and pressure plate would work with the LS2/ LS7 flywheel since the LS9 flywheel definately won't work. I guess we'll have to wait and see. I hope it will because I think it would be a great clutch at least on paper.
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Old 01-05-2008, 04:18 PM   #8
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Quote:
Originally Posted by raceme@you'dlose.com View Post
I wonder if the clutch and pressure plate would work with the LS2/ LS7 flywheel since the LS9 flywheel definately won't work. I guess we'll have to wait and see. I hope it will because I think it would be a great clutch at least on paper.
That would be the only hope...it would be really nice, that's for sure.
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Old 01-06-2008, 07:39 AM   #9
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Guess GM does not want your guys money.
Why could a good machinist not drill the nine hole bolt pattern in the flywheel?
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Old 01-06-2008, 09:58 AM   #10
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Quote:
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Guess GM does not want your guys money.
Why could a good machinist not drill the nine hole bolt pattern in the flywheel?
That could probably be done but I don't know if I would want to. I think that could lead to several problems but that's just my opinion. I am sure that someone will either try the crank in our engines or the best case would be that the clutch and pressure plate will bolt up to the LS2/ LS7 flywheel. I don't think that GM would design a new engine that wouldn't at least have some interchangablity with previous LS motors. JMHO.
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Old 01-08-2008, 01:42 PM   #11
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Someone would just need to design a new flywheel for it. Couldn't be that hard.
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Old 01-08-2008, 02:41 PM   #12
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wow i hope they find a way to make this work
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Old 01-08-2008, 02:43 PM   #13
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Quote:
Originally Posted by wrd1972 View Post
Why could a good machinist not drill the nine hole bolt pattern in the flywheel?
I've done this on other projects in the past, never had any issues, usually to run a smaller TC. Then again that was a flexplate, not a flywheel, same difference.
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Old 01-08-2008, 06:03 PM   #14
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making a new flywheel with 6 bolts should not be an issue
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Old 01-08-2008, 08:53 PM   #15
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Quote:
Originally Posted by Josh@MASPORT View Post
making a new flywheel with 6 bolts should not be an issue
That would be the best option...an aftermarket company stepping up to the plate to make one would stand to make a lot of money, provided it doesn't also use some funky type of slave (or master) cylinder.
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Old 01-12-2008, 11:36 PM   #16
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Does anyone have pictures of the ZR1 clutch?

From looking at the ZR1 flywheel picture, it looks like a flat flywheel, similar to the LS1 flywheel. Not like the stepped LS2/7 flywheel.

I bet 50 bucks that the twin disk will bolt to an LS1 flywheel. If not, it would be nothing for a machine shop to drill new bolt and dowel pin holes.

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Old 09-18-2008, 04:14 PM   #17
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Quote:
Originally Posted by Project GatTagO View Post
Does anyone have pictures of the ZR1 clutch?

From looking at the ZR1 flywheel picture, it looks like a flat flywheel, similar to the LS1 flywheel. Not like the stepped LS2/7 flywheel.

I bet 50 bucks that the twin disk will bolt to an LS1 flywheel. If not, it would be nothing for a machine shop to drill new bolt and dowel pin holes.

Andrew

I know this is an antique thread but is this an option or just silly crazy talk?
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Old 09-18-2008, 04:24 PM   #18
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Quote:
Originally Posted by iansane View Post
I know this is an antique thread but is this an option or just silly crazy talk?
It might be an option. Just have to see the design of the clutch.

Andrew
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Old 09-20-2008, 04:30 PM   #19
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solution: run a ZR1 crank too
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Old 09-22-2008, 02:03 PM   #20
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So are these available at all now? I'm sure a machinist could drill the holes and re-balance the assembly.
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