Let me preface by saying I'm fairly new to Porsche ownership and do not have a lot of mechanical experience with the car.

A few weeks ago after purchasing a tuning program which boosts bar to peaks of 1.1, I seemed to get what felt like wheel spin or clutch slippage at wide open throttle in 5th gear at 5K+ RPM.

Shortly thereafter, I received a CEL. I was due to have the 30K service done, so I took the car to the local dealership and the codes were diagnosed as misfires.

30K service was completed last week (8/20) - codes were reset, dealer said there appeared to be no issue with the clutch, and no repeat of the problem until this morning. WOT in 6th gear and when boost reached 1.0-1.1 the car seems to lose grip but the engine continued revving high. I had to get off the accelerator and drop RPMs to regain RPM to acceleration response. This happened 2 times in a row.

Any idea what is causing this?

Thanks in advance for the assistance!

 

It may be due because of the increase torque and your clutch is not "fresh".

 

yep. no doubt you need a new, better clutch. Very common with
power-added 996tts. The clutch is marginal, even at stock power
levels if pushed a lot. Everyone here with any time at all with a
power flash have UMW or EVO or similar clutch upgrades. Welcome
to the club.
Joe

 

Agree. ^^^

One troubling comment is "I took the car to the local dealership..."

Man, be careful or you are gonna get screwed! Find a qualified indy so you have some options... you can save a few thousand dollars.

A

 

Gents - thank you very much for the replies.

It just seemed really odd to me that for a couple of weeks the problem seemed to go away.

A - I usually use an independent shop but opted to go to Porsche dealer service for the 30K. I will be using my indy to get to bottom of this issue.