Flyweel Replacement

[geoffbaltz]

I'm going to put in a new clutch and want to replace the flywheel. Is there an advantage to going to a GT3 or RSR flywheel and will it fit? Should I just go with an aluminum one like the Firdanza? Has anyone had any experience with non-oem flywheels? I believe the flywheels are the same for the 3.4 and 3.6 motors as well.

'00 C2 3.4

Edited October 22, 2006 by geoffbaltz

[RayGT3]

Geoff,

I have available a clutch assy from my GT3, DMF w/ring gear, friction plate, release bearing, guide tube and pressure plate (GT3 RS). Items have less than 5k mi, no track just around town driving. These items were removed by the dealer looking for a noise, as it turns out this didn't have anything to do with the noise issue. So I now have these almost new extra parts available. Please let me know if interested.

Ray

[geza]

GT3 engine totally different from Carrera engine........may not be the same flywheel.

Non OE flywheels (aluminum) transfer a lot of transaxle noise into the car.........may or may not be street appropriate.

[geoffbaltz]

OK, flywheels are the same from 98-04. PN: 996.114.012.03

The '04 DMF on the GT3 is PN: 996.114.012.50

There is also a single flywheel listed for the '04 GT3 with a 964 pn (964.102.239.31). This appears to be the Euro RS style flywheel that comes on the factory race cars/GT3 Cup Cars.

After checking specs, the RS flywheel is only 11 lbs.

This leads me to another question, are there any required parts to go from DMF to SMF?

Ray- I wouldn't be interested in the DMF but I may be interested in the GT3 clutch assy.

[Loren]

Uh... a GT3 flywheel has 9 bolts and a Carrera flywheel has 8.

[geoffbaltz]

Loren-

I noticed that. I'm better off going with an aftermarket flywheel and clutch. It's probably less expensive as well.

I'm thinking a Fidanza aluminum flywheel (12.5lbs) and a Spec kevlar clutch.

Edited October 23, 2006 by geoffbaltz

[RayGT3]

The release bearing is different when going from the DM to SM as the thickness of the two are diffferent.

[brucem]

The findza unit also has NINE BOLTS (02+ cars only).. take a look at the AASCO unit. I know a couple other guys are using that unit, and that is what I am going to use I think. Available through Vivid is the only place I found that carries it.

[pecivil]

you can get the aasco unit from engine builders supply in nevada. I got mine from there.

[geoffbaltz]

The flywheels are all 8 bolt, except for the GT3.

PET shows the same DMF part number for all 98-04 996 engines: 996.114.012.03. It also shows a qty of 8 bolts needed for all 98-04. The '04 GT3 shows qty of 9 bolts needed and a DMF pn of 996.114.012.50.

If the Porsche DMF is the same for all 98-04 normally-aspirated 3.4 and 3.6 cars, why would the fidanza unit only be for 3.6 cars? Doesn't make much sense to me.

The clutch plates are the same, but the pressure plate and the release bearing are different from '02 on. Would this be the reason? But the flywheel is the same! :huh: