NISMO or JWT flywheel can be used with either the NISMO or OEM Presure Plate and Disk (clutch).

JWT Clutch (presure plate and disck) can only be used with JWT Flywheel (now out for 350z and in stock at http://www.performancenissanparts.com )

 

i thought the whole point of a "Sprung clutch" was to get rid of the rattling noise?

anyone have an Unorthodox 6-paddle Ceramic clutch and their Ultra L Alu. flywheel? i was considering getting the pair and am looking for any feedback

thanks in advance!

 

Not really , it is to reduce shock transfer into the drivetrain.
Hard launches with an unsrung puck type disks is very hard on the drivetrain and not recommended for durable street use.

There are two basic types of clutch noise on a Z/G.
Rattle and Chatter.

Rattle is caused by tranny noise which is more readily heard when the OEM dual mass flywheel is repced with a lighter lower mass type.

Chatter is mostly caused by "grabby" clutch disk materials such as cera-metallic which are very heat resistant but feather poorly.
Organic materials such as OEM or high performance Carbon chatter the least.

 

so you are saying that a noise below 2500 rpms is normal because the nissan dealership i got mine installed is baffled and this noise and have replace my tranny twice