[sasilverbullet]

I still have the original clutch/flywheel at 160K mi. So these questions are for a stock clutch...



Flywheel - is there rubber in the middle of the thing that goes bad with time?



Clutch plate - is there rubber in the middle of the thing? or just metal?



If I need to replace the flywheel/clutch/pressure plate - is there a good after market supplier for the Dual mass flywheel and clutch assembly? If so, who? number to call, best place to get it, etc...



I read all the threads about the Fidanza flywheel, doesn't sound like I want that one...



Just FYI - here's the symptoms - high pitched vibration in the shifter ALL the time, varies w/engine rpm, not speed of vehicle. It's there even at idle in neutral. Seems like there's a little 'slippage' when engaging the clutch and stopping on the gas...balance belt is tensioned...



Need advice please!!!!

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[Eric_K]

Flywheel - is there rubber in the middle of the thing that goes bad with time?

I don't know what is actually inside the DMF but it does go bad and slop around. Someone should break apart a bad one and take some pics.

Clutch plate - is there rubber in the middle of the thing? or just metal?

No, its a solid disk. No rubber, no springs. When it gets thin or too hot the friction material will come off in chunks. BTDT.

If I need to replace the flywheel/clutch/pressure plate - is there a good after market supplier for the Dual mass flywheel and clutch assembly? If so, who? number to call, best place to get it, etc...

I think you would have to go to Porsche for the DMF. I get my clutch stuff from Paragon.



Eric

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[ether_joe]

The only DMF option to my knowledge is currently Porsche. However rumor has it Flash has been working on some custom-design alternatives.



I paid $750 for a clutch flywheel and sundry items from Paragon this summer.



If you can find a shop that will take on the challenge, you can get the flywheel machined and save some dough.

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[PorscheDude]

[quote name='sasilverbullet' post='29041' date='Dec 14 2006, 09:07 AM']I still have the original clutch/flywheel at 160K mi. So these questions are for a stock clutch...



Flywheel - is there rubber in the middle of the thing that goes bad with time?



Clutch plate - is there rubber in the middle of the thing? or just metal?



If I need to replace the flywheel/clutch/pressure plate - is there a good after market supplier for the Dual mass flywheel and clutch assembly? If so, who? number to call, best place to get it, etc...



I read all the threads about the Fidanza flywheel, doesn't sound like I want that one...



Just FYI - here's the symptoms - high pitched vibration in the shifter ALL the time, varies w/engine rpm, not speed of vehicle. It's there even at idle in neutral. Seems like there's a little 'slippage' when engaging the clutch and stopping on the gas...balance belt is tensioned...



Need advice please!!!![/quote]



I am getting ready to do this myself. My DMF is on its last leg. I searched and searched for a DMF.

I was going to go the Fidanza route, but decieded against this after talking with pete @ RS Barn. He has a SMF in the works as we speak. But may be to far of a lead time for me.



I did find an aftermarket sachs DMF for under $300. And other OEM replacements (LUK) for $650 to $1100. But I have no information or feedback on them.



Luckily for me, I have friend who is a GM at a porsche dealer. I have decieded to go with the Porsche DMF,

and take advantage of his pricing. The DMF is currently on order from germany and should be here before my christmas break. I will be doing the clutch job myself.



The parts I have ordered are Porsche DMF, Sach clutch kit with PP TOB, RMS (rear main seal), New Flywheel bolts, New Pressure Plate Bolts, and Pilot bearing. I have a clutch alignment tool from the clutch job I did on my 944.



As far as pricing on some of the parts try www.nextag.com or www.bizrate.com or simular sites for pricing. I use sites like these for price check on lots of things.



Regards

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[Mark]

Sachs is the OEM for the clutch I believe.

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[Darth Vadar]

[



Luckily for me, I have friend who is a GM at a porsche dealer. I have decieded to go with the Porsche DMF,

and take advantage of his pricing. The DMF is currently on order from germany and should be here before my christmas break. I will be doing the clutch job myself.



I'm very curious...what is Porsche Dealer pricing on an OEM dual mass flywheel?



And, is it manufactured by Luks? $650.00 sounds pretty good compared to the $1,000.00 my Porsche Dealer quoted me for an "OEM" unit...

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[PorscheDude]

[quote name='Darth Vadar' post='29087' date='Dec 15 2006, 08:42 AM'][



Luckily for me, I have friend who is a GM at a porsche dealer. I have decieded to go with the Porsche DMF,

and take advantage of his pricing. The DMF is currently on order from germany and should be here before my christmas break. I will be doing the clutch job myself.



I'm very curious...what is Porsche Dealer pricing on an OEM dual mass flywheel?



And, is it manufactured by Luks? $650.00 sounds pretty good compared to the $1,000.00 my Porsche Dealer quoted me for an "OEM" unit...[/quote]





He is going to "let me have it" for $750

I debated about saving the hundered bucks and getting the aftermarket piece, but decieded to go factory. Had I not had this friend i would have went with the LUK DMF.

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[flash]

sounds like the price from sunset



trying to save money on clutches by using less than optimum parts is never really a good idea - the bad news is that even if you get the OEM flywheel, it will fail again - the design sucks



these cars, like any performance car, cost money - start saving - it only gets worse as they get older



this just in - my car is now 13-1/2 years old - definitely no spring chicken

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[orphanowner]

About a year ago I got to drive Bob's 968 Cab. Impressed I was, I made the next order of business the Fidanza flywheel. It was such a natural modification for the 968's free reving engine I had to do it. I sold my almost new d/m flywheel and never looked back. I'm sorta starting to like the 2200 rpm trailing throttle trans rattle.



One thing to remember, as we mod these cars and slowly notch up the power and torque, the d/m flywheel will expire sooner rather than later.

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[flash]

good point!!!



i have already found the disk to be inadequate - i sheared it right off - coming out of the last turn at PIR to the start/finish line, banged 2nd to 3rd at 7500, and BOINK - i was done for the day - not pretty - actually cracked the pressure plate too

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[sasilverbullet]

You guys are starting to convince me to try the Fidanza. Those two pics, one's the DM and the other the Fidanza?



So how much is a Fidanza?

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[flash]

you can find them once in a while on ebay for 300 bucks



normally they are somewhere around 500



to be fair, i like mine, but my car is a toy - i don't think it would be terribly comfortable for a daily driver - steve is a race driver, and likely is a lot more tolerant of such things too



food for thought

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[au968]

Just a data point.



Mine had a solid lightweight flywheel in it when I got it, and eventually, I swapped it out. The racket on over-run at 2200 rpm or thereabouts has to be heard to be believed. I actually had people come up to me and ask me what was wrong with my car as it sounded to them like the gearbox was about to fall out.



I don't know if they all sound like that, but I do know that it gets very annoying on a road car, especially in traffic (think stop-start second gear) On a track car, who cares?



Michael

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[flash]

they do all sound like that - nature of the loss of dampening - i liken it to a coffee can full of nuts and bolts rattling



it is indeed annoying - right up until the time where you blip the throttle and it just zooms - but yes, i agree, not for everybody

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[Renalicious]

Yikes! So it's either a short lived DMF, or loud SMF <img src="/forum/images/smilies/968/ohmy.gif" class="smilie" alt="" /> I guess it's something that needs to be heard to be believed. Anyone wanna do some audio recordings? And possibly throw in some RS Barn exhausts as well? <img src="/forum/images/smilies/968/wink.gif" class="smilie" alt="" />



On a side note, is there a medium weight flywheel available? Something that isn't as heavy as an OEM DMF, but not as light as the Fidanza?

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[flash]

not just yet - stand by a few more days for info- that is in the works now

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[sasilverbullet]

Now that sounds like a possibility - a heavy flywheel w/o the DM!



I'm waiting also...<img src="/forum/images/smilies/968/smile.gif" class="smilie" alt="" />

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[SILVY968]

Me too. My DMF is trashed and I do not want a can o bolts in my DD.

Brian

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[orphanowner]

Yes the car with the Fidanza does sound like a coffee can full of bolts at 2200 RPM and yes the car does accelerate much better and double clutching is a breeze and very satisfying to drive with the Fidanza. Like Bob’s car, mine is a toy as well. I’ve logged just 910 miles in the last 14 months. A daily driver it’s not.



For me, I’m not interested in what my car sounds like to others. I know there is nothing wrong with the trans and the improvement in drivability and throttle response is worth it. The car is transformed in my opinion. The DMF is way too heavy and when you toss in some reliably issues and a cost approaching a grand, I’m so done with it.



I also think that with modifications and track driving, you can expect a replacement DMF (the replacement LUK units are improved) to last around 30-50K miles, which is pretty good. It will ultimately fail simply because it’s got rubber inside and is subject to heat and the repetitive torque of the engine in both accel and decel modes.



I had a guy ready to machine a .20” ring around the bolt holes which would drop the bolt heads low enough in the Fidanza so a spring center clutch would fit, but I got sidetracked with other projects and never pulled my flywheel to have it done. This guy is an engineer for TRD and did a CAD analysis on the flywheel and side the additional machining was safe.

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[flash]

wow - interesting that both spec and fidanza say that it wasn't safe, which is why they didn't and wouldn't do it



now if only we could find a disk



i actually had some spring center clutches here to try to make that work - unfortunately, i could not find one that would work with both our pressure plate and input shaft - either the throwout bearing got in the way, or the shoulder on the clutch disk was too short



i would have to step outside porsche for a disk, and just gave up at that point

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