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Old 07-15-2020   #21
Ccmano
 
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Default Re: alluminum flywheel?

As has been mentioned a light weight aluminum flywheel may or may not cause transmission rattle, but likely will. Mine has moderate to loud rattle. One thing that can be done to mitigate the rattle is a countershaft shim kit that is very easy to install with the trans out of the car. Carolina Clutch provides such a Kit. It will be my next winter project.
H


https://www.carolinaclutch.com/produ...te-c4-shim-kit
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Old 07-15-2020   #22
tf95ZR1
 
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Default Re: alluminum flywheel?

Thanks, Hans! I never heard of this shim kit,
or that this might help with the rattle. Anybody
have any experience with the kit? Does it help?

Ted
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Old 07-15-2020   #23
Ccmano
 
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Default Re: alluminum flywheel?

Quote:
Originally Posted by tf95ZR1 View Post
Thanks, Hans! I never heard of this shim kit,
or that this might help with the rattle. Anybody
have any experience with the kit? Does it help?

Ted
Ted,
This is the exact same thing Bill B does when he rebuilds a trans and sets it up for an aluminum flywheel to minimize rattle.
H
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90'ZR-1 #1461 Red/Black
Ported Intake, Degreed Cams, OBX Headers & Exhaust, Fidanza FW, Secondary Delete, Custom tune, C6 GS Wheels. Sold
08 C6 Z51 Crystal Red Metallic Sold Vararam Intake, Tune, Sold
05 C6 Z51 Red/Black Sold
90'ZR-1 #1723 Black/Gray Sold but not forgotten
91' Z51 L98 White Vert. My First, you always remember your first. Sold.
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Old 07-15-2020   #24
-=Jeff=-
 
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Default Re: alluminum flywheel?

This may not be apples to apples comparison.. but I had an 89 mini ram car before the ZR-1. It had a centerforce steel single mass flywheel, weighed close to the dual mass, car was fun to drive. I installed a fidanza aluminum one. I hated driving the car after that. Was more of a chore than fun to drive on the street. My 1990 ZR-1 has exhaust, headers and 4.10s with stock flywheel. I love driving it. Since you are having the work done I agree with Ted and Zman, port and chip it.
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Old 07-16-2020   #25
Hib Halverson
 
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Default Re: alluminum flywheel?

Quote:
Originally Posted by Karl View Post
Do you have a part number or source for the Performance Distributors ignition coil?
I'm sorry but I don't. That was one of the modifications I did to the engine at the same time Van Dorn was working on it. All that happened in 1997/1998 and I do not remember the PN nor do I have any of the invoices from back then.

Sorry.

If I had to do that again, I'd just use the MSDs.
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Old 07-17-2020   #26
Karl
 
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Default Re: alluminum flywheel?

Quote:
Originally Posted by Hib Halverson View Post
I'm sorry but I don't. That was one of the modifications I did to the engine at the same time Van Dorn was working on it. All that happened in 1997/1998 and I do not remember the PN nor do I have any of the invoices from back then.

Sorry.

If I had to do that again, I'd just use the MSDs.
No worries. I purchased the screamin demon coils and a set of their live wires in yellow from Jeg's.

Should be here soon!

The coil's on my car are the one's that came with it and I want a hotter ignition system and a wider gap on my plugs.
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Last edited by Karl; 07-17-2020 at 02:25 PM.
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Old 07-23-2020   #27
tf95ZR1
 
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Default Re: alluminum flywheel?

Quote:
Originally Posted by Ccmano View Post
As has been mentioned a light weight aluminum flywheel may or may not cause transmission rattle, but likely will. Mine has moderate to loud rattle. One thing that can be done to mitigate the rattle is a countershaft shim kit that is very easy to install with the trans out of the car. Carolina Clutch provides such a Kit. It will be my next winter project.
H


https://www.carolinaclutch.com/produ...te-c4-shim-kit
PS: This shim kit is actually a Bill Boudreau product.
He may sell them directly.

http://www.zfdoc.com/

Just Sayin'

T
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Owned by me since 2000.
91K miles, but not on motor :-)
Mods the way I want it,
Not afraid to drive it!
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