Cobb Pro Tune for 991.2.. Its ready
01-17-2019, 09:05 AM
#211
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01-17-2019, 11:57 AM
#212
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Excellent work considering the heat down there right now. Definitely looking forward to getting your tuner some ATP access to tweak the tune even more for you!
Think you might be underestimating a bit since I believe you're still basing this off a 3000lb car weight? Curb weight for a .2 GTS is 3241lbs and 4.0 has admitted he's a big boy (don't feel too bad, I have the widest RaceTech seat you can buy shoved in my 987.2 track car- big boys unite!) so we'll be nice and call him ~200lbs and round up to 3450lbs just for fun. 10.8 @ 130mph and that weight makes him closer to about 590ish + crank. Definitely looking forward to some more slips and excited to get custom tuning abilities out to your tuners so you guys can really start dialing things in.
Thanks!
~~~~Jared
Thanks!
~~~~Jared
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01-17-2019, 01:06 PM
#213
Think you might be underestimating a bit since I believe you're still basing this off a 3000lb car weight? Curb weight for a .2 GTS is 3241lbs and 4.0 has admitted he's a big boy (don't feel too bad, I have the widest RaceTech seat you can buy shoved in my 987.2 track car- big boys unite!) so we'll be nice and call him ~200lbs and round up to 3450lbs just for fun. 10.8 @ 130mph and that weight makes him closer to about 590ish + crank. Definitely looking forward to some more slips and excited to get custom tuning abilities out to your tuners so you guys can really start dialing things in.
Thanks!
~~~~Jared
Thanks!
~~~~Jared
01-17-2019, 03:37 PM
#214
01-17-2019, 04:00 PM
#215
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That is awesome PTS, Tecni and 4pt0. So great to see these slips!! Especially from the little S, Tecni! My manual has a Dragy 1/4 mile best of 11.04 @ 127.44 but wasn't;t a drag strip. Dropping the car on Monday so we can add and external boost gauge since the stock gauge stops reading at 22.6psi. Plus need to get a couple torque limits removed and some timing figured out. My WG cycle is mid 60's and hopeful once timing is figured we can add boost and not just be throwing heat at it.
01-17-2019, 05:05 PM
#216
SPD: You are correct about the clutch force. Thats is what the PDK adaptive program does. It allows the clutch force to increase without slippage.
4 point 0: I am running 11.04 in the 1/4 mile on the road with all season radials and documented clutch slippage.
I dont think your headers are doing any more for your car than the Kline are doing for mine, In fact, I would argue that proper rubber, warm asphalt and a clutch that doesn't slip would probably reduce my time by more than .20 seconds. So, your car is fast with Vektor headers, not because of Vektor headers.. Oh, dont forget my car is also 325lbs heavier
4 point 0: I am running 11.04 in the 1/4 mile on the road with all season radials and documented clutch slippage.
I dont think your headers are doing any more for your car than the Kline are doing for mine, In fact, I would argue that proper rubber, warm asphalt and a clutch that doesn't slip would probably reduce my time by more than .20 seconds. So, your car is fast with Vektor headers, not because of Vektor headers.. Oh, dont forget my car is also 325lbs heavier
I am having the track widened today in preparation for our private track day in a few weeks time. Putting all those elephant racing adjustable bars to good use.
TX GOLD - Torque limits removed. That is the path.
01-17-2019, 08:46 PM
#217
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
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
Is this in anyway related the the TB flutter we are seeing on the data logs? Is the DME trying to control the power output in order to keep it manageable for the transmission settings?
01-18-2019, 07:58 AM
#218
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That is awesome PTS, Tecni and 4pt0. So great to see these slips!! Especially from the little S, Tecni! My manual has a Dragy 1/4 mile best of 11.04 @ 127.44 but wasn't;t a drag strip. Dropping the car on Monday so we can add and external boost gauge since the stock gauge stops reading at 22.6psi. Plus need to get a couple torque limits removed and some timing figured out. My WG cycle is mid 60's and hopeful once timing is figured we can add boost and not just be throwing heat at it.
There are People that do this google it
01-18-2019, 05:11 PM
#219
Rennlist Member
not the cluster the actual sensor. It’s limited to 22.6psi or less readings. Not the boost gauge on the cluster. Thanks for the hint tho big guy.
01-18-2019, 06:47 PM
#221
Three Wheelin'
Thread Starter
M3THOD: Cobb has commented in this thread and I am really just repeating what they are telling me. Perhaps they can answer the question intelligently so those who are interested can understand what they are asking to be done. From a layman perspective, its basically resetting the PDK parameters so that it may compensate for the more power by adaptive learning. P-Wiz is the name of the program used by Porsche.
01-18-2019, 07:24 PM
#223
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ECU Code (Program part SDI21.2) can calc max 3520mbarOn the CAN BUS you will find boost corrected and boost raw value
And just by the way if you would run more boost on the engine than the sensor can measure than you would drive uncontrolled boost very bad.And in the case form the 3,0L even worse because Airmass cala is made by the difference between the two sensors.
Just look up the spec of the sensor… 0261 232 012
Last edited by sagerdyn; 01-20-2019 at 10:00 PM.
01-26-2019, 05:50 PM
#224
Three Wheelin'
Thread Starter
Haven't posted on this thread for a little while, but I have some more info and wanted to update this topic.
The Cobb tune is creating significant increases in HP and torque. Here on the East Coast the temps are cold and the car is producing even more power than previously tested.
I was told that the car in cold weather like this is producing about 10% more than cars in the warm weather. As a result, the stock PDK tune is being pushed to its limit.
What is happening is that the clutch is running out of pressure at max RPM/HP/ Torque and about 500-800 before redline (primarily in 3rd gear) it is not catching initially and then hooks up.
The clutch is NOT slipping. It is NOT unable to handle the power. In fact, it can handle much more than my car is putting down. It just needs a small tweak to beef up the pressure so the car
can shift smoothly under higher power.
Cobb is aware of the issue. My mechanic has also flashed the PDK and will send Cobb all of the data in order to help them find a solution ASAP.
I suspect that this may throw a wrench into the release of Pro Tune, but perhaps it will not. That's the latest info I have and I will follow up in this thread as soon as I get some information
The Cobb tune is creating significant increases in HP and torque. Here on the East Coast the temps are cold and the car is producing even more power than previously tested.
I was told that the car in cold weather like this is producing about 10% more than cars in the warm weather. As a result, the stock PDK tune is being pushed to its limit.
What is happening is that the clutch is running out of pressure at max RPM/HP/ Torque and about 500-800 before redline (primarily in 3rd gear) it is not catching initially and then hooks up.
The clutch is NOT slipping. It is NOT unable to handle the power. In fact, it can handle much more than my car is putting down. It just needs a small tweak to beef up the pressure so the car
can shift smoothly under higher power.
Cobb is aware of the issue. My mechanic has also flashed the PDK and will send Cobb all of the data in order to help them find a solution ASAP.
I suspect that this may throw a wrench into the release of Pro Tune, but perhaps it will not. That's the latest info I have and I will follow up in this thread as soon as I get some information
