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My 2007 did that too, but as mentioned, it was aporadic and when i had it serviced, I asked and was told there was nothing wrong. Keep in mind that there are oil seals that seprate the two side of the turbos that may drip a little oil until heated up. If the smoke screen was constant and lasting more than a couple seconds and if it were happening under load or boost, then I would be concerned. Walt
My new clutch and lightweight flywheel are installed and I drove it home tonight. The clutch pedal feels about the same as before and the gear rattle I expected to hear as a result of the LWFW is almost non-existent. I had to push the clutch in and out a couple times until I could hear the difference. Not at all what I expected and very pleasantly surprised. The engagement feels exactly the same and if I didn't know the clutch was upgraded and a LWFW installed, I may not have noticed anything different at all. The only noticible difference is that it revs easier and quicker than before which is what I expected. I asked the mechanic to put the old parts in the new part boxes and place them in the trunk and much to my surprise, the stock clutch is not sprung, it is unsprung, just like the upgraded one I installed. I checked the part number and it is not an aftermarket clutch, it is the stock one and indeed it is unsprung which may explain why the feel of the new clutch is so similar. Perhaps the Turbo clutch is sprung and maybe the Turbo and GT2 share the same flywheel and preasure plate, but unless there was a mix up at the factory, my GT2 was built with an unsprung clutch disc. I highly recommend this clutch kit with LWFW as packaged as a kit by AWE and a big thanks to Intersport and Omar Hilmi for their great customer service and installation. http://www.intersportautosales.com/ Walt
JFP, thanks for the Marcel spring visual and explanation. You are correct that the unsprung disks are not used in street cars. The picture of the sprung hub clutch is in fact the factory type clutch for the 997 Turbo and GT2 cars. I am scheduled for the new clutch install on Monday. Will update afterwards. Thanks again! Walt
OK, now I think I got it figured out. I spoke with Mike at AWE tuning this morning and he confirmed that the GT2 stock clutch is a sprung hub. He also confirmed that a Porsche Motorsports clutch is a Sachs racing clutch. The Sachs stage 2.5 kit that I bought will work with either the stock dual mass flywheel or the lightweight single mass. He confirmed that there are no issues with engine balance using their LWFW and the stage 2.5 kit will have a very similar clutch pedal feel, release point, and engagment as the factory GT2 clutch. Even though the clutch hub is unsprung, Mike tells me that the clutch material uses fasteners that have enough give (I believe he referred to them as marchal springs?) that the absence of a sprung hub won't be noticiable. Mike sasys that this kit has been extensively tested and 100s of these kits have been sold by AWE. With this feedback, I am going to have the AWE Stage 2.5 clutch kit installed, however I am still on the fence on the LWFW. I am going to have the technician take a look at the stock flywheel and if it needs to be replaced, I will install the LWFW, otherwise I'm not sure what I will decide. I will repost when the new clutch is installed. In the meantime, if anyone is using the AWE Stage 2.5 clutch kit with LWFW, it would be great to hear your experiences. Thanks!
Yes, a 2008 GT2. The photos are the ones I viewed on the EVOMs website. The middle photo appears to be the Stage 1 Dual Mass - Sport Clutch Kit and it appears to be unsprung. Since the photos don't seem to match up on the site, I will give them a call. The shop I am using is ordering a Porsche Motorsports clutch, but I can't find any information on it. This is getting very annoying. Thanks for your help JFP.
Thanks guys. I was told that the stock clutch disc is not a sprung hub, which is surprising. The shop that is going to do the work is recommending the Porsche Motorsport clutch kit and I am being told the disk is unsprung. I told them to show me the stock clutch and pressure plate before installing a new one. I just want the stock like pedal feel and engagement with a clutch that has a higher rating than stock. You would think this would be easy, but apparently it is not. Any other GT2 owners care to weight in on this topic?
JFP, Thank you! That was exactly the feedback I was hoping to receive, however the reference in your response says "....on non-Metzger engines...." and unless I am mistaken, my 2008 GT2 is one of the best of the last of the Metzger engines. Regardless, I am not going to install the LWFW and unsprung clutch as you confimered that it would be a noisy pain on the street which I don't want. It is my understanding that my 2008 GT2 motor and the motor in the 2011 GT2RS share most of the same parts, however I read that the GT2 RS does have a single mass flywheel whereas my 08 GT2 has a dual mass. I am inclined to keep the factory stock dual mass flywheel and I am now considering the SPEC Stage 2 clutch kit part number SPC-SP842 which retains a sprung hub clutch, but with a higher torque rating. Information on this upgrade cluch kit is listed on Pelican Parts and seems like the right option for me. Thoughts?? Thank you in advance for your time, insight, and feedback. Walt
Anyone upgrade their clutch yet? I have experienced an intermittent clutch slip and decided to replace my clutch and flywheel with an upgraded package from AWE that includes a lightweight flywheel. Anyone have any feedback or experience with an upgraded clutch/flywheel package? I received the package last week, but have not had it installed yet. I noticed that the clutch disk is a non-spring type and before I install it, I wanted to get some feedback from some users. The clutch package from AWE is the Sachs Stage 2.5 Clutch Kit - With Flywheel. Thanks, Walt
I recall that my 2007 Turbo was 0-9-18 and had the Sport Chrono package. The up arrow is indicative of when the car is in over-boost mode. The stock 997.1 made a maximum of 18 lbs of boost. This was a peak boost, not a post level that was sustained for any significant period of time.
When I bought my used 2008 GT2, it came with the Porsche CPO, I would not have purchased this car without it.