Before I buy a new flywheel..

[Regimof3]

Is anyone selling one of them fancy lightweight ones?

[Ccmano]

If you shop the internet you should be able to find a Fidanza light weight flywheel for about ~$375. Keep in mind that there is a high likelihood your transmission will rattle at idle with a single mass light weight flywheel. The degree of rattle varies from barely noticeable to loud and obnoxious. It’s luck of the draw as to how your particular trans will react. If you go this route I highly recommend you add a countershaft shim kit from Carolina clutch to minimize the rattle. The next time my trans is out I will be adding one. The rattle on mine leans towards the obnoxious side. Have fun...
H


https://www.carolinaclutch.com/produ...te-c4-shim-kit

[Vette73]

Originally Posted by Ccmano

If you shop the internet you should be able to find a Fidanza light weight flywheel for about ~$375. Keep in mind that there is a high likelihood your transmission will rattle at idle with a single mass light weight flywheel. The degree of rattle varies from barely noticeable to loud and obnoxious. It’s luck of the draw as to how your particular trans will react. If you go this route I highly recommend you add a countershaft shim kit from Carolina clutch to minimize the rattle. The next time my trans is out I will be adding one. The rattle on mine leans towards the obnoxious side. Have fun...
H


https://www.carolinaclutch.com/produ...te-c4-shim-kit

You mean fidanza flywheels rattle ? No.!!! Lol....I feel your pain, and mines cammed...Rattle away....

[32valvesftw]

Are there any Youtube videos that have recorded the rattle, it might be a good reference for people who don't have a full mod history on their car.

[Ccmano]

Originally Posted by 32valvesftw

Are there any Youtube videos that have recorded the rattle, it might be a good reference for people who don't have a full mod history on their car.

Not that I am aware of. If you have it you’ll definitely notice it. You can instantly tell the difference between clutch in and clutch out. It’s more of a metallic clatter really. Makes you think there’s a serious issue with the trans. The shim kit is a simple install, other than having to remove your transmission. If I get a chance in the next week I’ll record mine and post it on YouTube. I should have my brake job done by week end.
H

[Paul Workman]

Originally Posted by 32valvesftw

Are there any Youtube videos that have recorded the rattle, it might be a good reference for people who don't have a full mod history on their car.

Well, yes. Try this one on a fully ported, stock cammed LT5.

508 HP LT5

The temperature was in the 20s that day, which means the viscosity of the trans oil was maybe a bit higher than when hot (in spite of being synthetic oil). And, the idle has been bumped to 900 which helps. But, that said, Ami's Z has Pete's cams in it, and hot or cold it rattles like a box of rocks!

One thing else to be sure to do is use a spring'ed hub clutch disc (e.g., Centerforce 381039). That too will dampen trans rattle.

And, lastly, per Marc H. recommendation, the trans is loaded with Redline Heavy Shock Synthetic trans fluid which seems to be a little better than the Castrol TWS synthetic I was using (until it was discontinued).

[mpiecyk]

Has that shim kit been around for a while?

[Ccmano]

Originally Posted by mpiecyk

Has that shim kit been around for a while?

I suspect it’s relatively new. Not sure though. Had I known about it 2 years ago when I did my clutch and flywheel I would have installed it then.
H

[mpiecyk]

Now I'm interested, if it took away 50% of the noise and clatter I'll be very happy!!!

[32valvesftw]

Thanks Paul.