Psorcery

We are all sticky.

PTS-BRG

Props to Cobb for getting stage 2 out the second week of Jan as promised and looks like pro tune will be on time in another two weeks.

Also, a follow up to my situation.. Cobb went into my pro tune and essentially removed all of the PDK tuning. I will be doing runs in the morning and sending them back for review.

How's that for fast turnaround and customer service? A+ Cobb

reacher

Hopefully now you'll get a higher speed at the same RPMs.

Nathan_

reacher

And the drag coefficient and wheel weights.

PTS-BRG

My pro tune is what's causing the shifting problems, not the PDK tune. I did some more runs this morning and same results so its the tune that the car is interpreting and shifting based on what it is reading.
I think the tune needs the tweak, not the PDK. Also, how many of you are able to spin the wheels with Traction off? I can't spin the wheels in any mode, at any speed in any gear. This leads me to believe there is some torque/hp not making its way to the tires. A 550-600hp car even with AWD should be able to smoke the tires or at least get a little chirp

reacher

I can break the tires loose easily with my RWD stage 2 and traction on, even at speed. AWD is a different animal, though.

cosmo1

Went out yesterday to gets some times to compare but it was too cold and even with the traction control on it still spun badley..

PTS-BRG

Cosmo Do you have an AWD 991.2?

cosmo1

Unfortunately No.. just a 991.2 with pdk and a few mods.. Hoping Pure will finish their Turbo Upgrade soon because I'm ready..

spdracerut

AWD is magic I wouldn't expect to spin the tires until 800whp+

cosmo1

This was posted a while back and it was from a 991.2 4S. https://rennlist.com/forums/991/9902...ne-review.html

fsmich

My untuned C2S with X51 and Vektor headers will smoke the rears with traction off, I do a couple to warm the tires up. With launch control, the car does 0-60 in about 3 secs (1 foot rollout timing) with no wheel hop/spin, 3.2 secs when I don't get a good hook-up. The 3500 to 7000 3rd gear pull takes 4.7 secs, about 1/2 sec slower than 4Pt0's time.

VektorPerformance

4S here. 1st gear it's struggling for traction. With Launch control and traction control off it spins for the first few car lengths.

frmich, that is impressive!!

PTS-BRG

Follow up on my situation:

Somewhat good news.. My car is putting down a great deal more HP and Torque than was expected. As a result the car's PDK clutch is slipping which causes traction control to engage then slipping again. The solution is to get the PDK reset. Apparently, Porsche has a program called P something that allows the clutch to adapt to what the engine is producing. If its producing more HP and Torque then this program will allow the PDK to essentially tune itself. This is not a PDK tune, it will be factory PDK but this program will allow the clutch to adapt to what the tune is putting out. Its call PDK clutch adaptation. Hopefully getting it done before the weekend, it takes about 20 minutes. Stay tuned