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964 Turbo Forum 1989-1994

lightweight flywheels?

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Old 12-20-2010, 01:02 AM
  #16  
Brian W.
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Originally Posted by Metal Guru
How do you know this? Did you check it per the Service Manual instructions?
Even if it checks out ok there's no guarantee that it will last the life of the new clutch. In fact, I'd bet it won't. But, hey, it's your car. Do what you want to it.
When you get it back from the machine shop I'd recommend that you put a dial indicator on it to make sure it's flat.
i dont know for a fact that its "good" but i have seen plenty of dual mass flywheels both good and bad and this one still "feels" fine. Ill double check it before i throw it back in. I know this isnt common practice, but this is my personal car and im just trying to get it back on the road/ track for now. Also, im not expecting the new clutch or flywheel to last to long. However now im going to look into this RS flywheel option.


Bert,

im just having it scimmed so that i have a fresh surface for the new clutch to bed into. However i might not even use it if i can get this RS FW to work for cheap. Im not quite understanding what youre saying here though. You said they only used the RS FW and RS guide tube and the rest of it was oem 964 Turbo stuff?

thanks!
Old 12-20-2010, 07:12 PM
  #17  
budge96
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Hey Brian, what I said was they used the complete RS clutch and flywheel package but if you look through the parts list for a 964 Turbo clutch and the RS light weight clutch package the only non
transferable part is the guide tube.
So in other words all your stock components can go on the light weight flywheel as long as you use the
RS guide tube.
At least this is my reasoning and info from my most valued source.
Look at it this way it's the identical gearbox thats why components are common to both ,thanks Bert
Old 12-21-2010, 04:53 AM
  #18  
sl951
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It's not just RS tube...there is the clutch-throw-out bearing (longer arms) , RS starter ring gear, etc.

This thread should be helpful.

https://rennlist.com/forums/showthre...ferrerid=18446
Old 12-23-2010, 02:07 PM
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nutter965
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Hi there, i replaced my dual mass with a light weight flywheel and a GT2 clutch kit, you do need the longer guide tube etc but a great job :-), i bought it as a kit from FVD
Old 12-29-2010, 02:00 AM
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farfinator
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http://www.aascomotorsports.com/flywheels/porsche.html
These guys are the principle manufacturer. Don't know if you can buy direct.
Old 12-29-2010, 10:18 AM
  #21  
Metal Guru
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Don't see any kind of Turbo flywheel listed there.
Old 12-31-2010, 08:16 AM
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farfinator
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Unless I am mistaken, the 993 M003 RS Clubsport Flywheel 964-102-239-31 is the same part # as that for the 964 RS.

So, for the 3.6 T you are looking for an Assco # 106413-11

For the 3.3T, I'm checking but I don't think its different, but I'll check.

Last edited by farfinator; 12-31-2010 at 09:05 AM. Reason: I was wrong
Old 12-31-2010, 10:06 AM
  #23  
Metal Guru
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Originally Posted by farfinator
For the 3.3T, I'm checking but I don't think its different, but I'll check.
The 964 RS has many teeth on it for the Motronic ignition. The 3.3 and 3.6 Turbos have three teeth for EZ 69 triggering (see the flywheel on the Patrick Motorsports web site). Guess I'm still confused as to how an RS flywheel will work on out cars.
Old 12-31-2010, 10:58 AM
  #24  
RichiRich
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Originally Posted by nutter965
Hi there, i replaced my dual mass with a light weight flywheel and a GT2 clutch kit, you do need the longer guide tube etc but a great job :-), i bought it as a kit from FVD
Was it this one?

http://www.fvd.de/de/en/Porsche-0/96...eel-660Nm.html

If so, did you notice a big difference?
Old 01-01-2011, 12:30 PM
  #25  
farfinator
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Metal Guru, You are correct. Looked back in my notes and found the supplier of the 3.3L Flywheel-A company called Mode Inc, who does not sell to the public.
You do in fact need virtually all of what the Patrick and FVD kits prescribe.
The only differences might be in the Pressure Plates (different clamping forces) which would justify different price points.
Old 01-01-2011, 03:30 PM
  #26  
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Originally Posted by farfinator
The only differences might be in the Pressure Plates (different clamping forces) which would justify different price points.
Kennedy Engineered Products makes a 965 pressure plate that's good to 650 ft.-lb. I'd love to try that one. Most of the 930 guys use KEP stuff and are really happy with it.
Old 01-01-2011, 03:53 PM
  #27  
farfinator
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No doubt, Kennedy makes some great products.
Most of my experience has been w/ Sachs.
Just be certain you don't throw money out the window on more pressure plate that you really need. Its not worth it for that weekend blast unless you truly beat the crap out of it, have enhanced the HP greatly or track the car.
Also, in as much as a solid/puck disc can be OK for the dual mass, do not make the mistake and think its a great 'upgrade' for the light flywheel set up. You need the sprung disc to compensate for the loss of pliability the dual mass had afforded.
Old 01-04-2011, 08:56 PM
  #28  
farfinator
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Default No 965 Clutch Kit Disc-NG

Brian, I believe, in addition to the RS Guide tube 950-116-813-30, you will need the RS ring gear 964-114-143-31 and the RS release bearing 944-116-080-01

You WILL NOT want to use the clutch disc in the 965 kit. The part number typically that comes in the kit is a 964-116-014-62. Although it will "FIT" and essentially "work" it is a solid disc.
The solid disc works fine with the forgiving pliable dual mass, but will be horrific with a solid flywheel. The correct disc is 996-116-015-32, which is a sprung disc.


Did you ever download the manual?
Old 01-14-2011, 07:28 AM
  #29  
nutter965
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Originally Posted by RichiRich
Was it this one?

http://www.fvd.de/de/en/Porsche-0/96...eel-660Nm.html

If so, did you notice a big difference?
Pretty much this kit, i'm running AEM engine management so i used a 993 flywheel and machined off quite a number of the teeth ! if memory serves me correctly keeping every third one, and yes it feels different to drive, sharper would be the best description, i can also recommend FVD highly it was after much discussion that i went for this set up.



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