Hey folks,

We recently installed the lightweight flywheel kit (single mass, 14 lbs.) into another 997.

To give you an idea of how it changes the car, we made a short video showing before and after the installation. You can watch the video here:
http://www.youtube.com/watch?v=Er1eYuVe2zE

The car already had an IPD plenum and EVOMS V-flow intake installed. The only change for the video was the lightweight flywheel.

 

I saw you guys on a Speed Channel show with the Green RS's.

 

does it chatter?

 

+1

I will be looking at a new clutch soon and was considering this upgrade but have read that the chatter is kind of anoying for the street...

 

there is some transmission noise for _sure_ . We always show folks what it's basically like by demo'ing either the shop RS or Cayman first So I'd advise listening to it first. It does so to varying degrees depending upon the car/transmission. 996s are noisier than the 997s.

 

I was going to get a lightweight flywheel until I watched the video.
The changes are inentical to those with the EVOMS CAI and IPD Plunum alone. The LFW seems to do nothing but add drivetrain noise.

 

Well it's just like the difference between the RS and regular GT3. There really is better acceleration and hence when you look at the 0-60 times for those cars it's usually around .2 seconds. You'd probably need to drive it to see what we mean

Also the car already had the plenum/EVO intake in the "before/stock" video and the "LWF".... The only part added between the two was the LWF.

 

No thanks

 

It's definately not for everyone though and certainly wise to try before ever considering it.

 

LWFW is on my list to do when it comes time.

It was one of the best 'Bang per Buck' upgrades I made on my other car. It felt better shifting between gears for DD,AX and track.

 

The difference in how much more freely the RPMs rise is worth the "noise" from the loss of dampening in the stock FW, IMO.
Not having to spin that extra weight is a good thing!... and some like the "noise".

 

When the car is in motion at 'speed', the noise is no longer relevant. If a driver don't mind the squeal of track pads on the street, then a LWFW is not an issue.

Stalling the car at a stoplight because of a LWFW is another story.

 

Does anyone know off-hand what a stock dual-mass FW weighs on a 996?

 

Denis, one data point here.....I recently changed out my stock clutch and flywheel and put in the Cup clutch and Cup flywheel setup and saved 26#.

 

Thanks for the response, can you tell me who sells the cup FW/clutch or provide a link? Is it a Porsche MS item? How do you like it? PIA on the street?

I figure that it's a linear thing, ie. the lighter the FW/PP set-up, the more negative side effects. There has to be some happy compromise since the stock one weighs a ton. I would imagine that you can go quite a bit lighter before you lose all of the stored energy that makes stock FWs nice in traffic.