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GTS Redline

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Old 02-01-2015 | 04:40 PM
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I agree I think there is very little chance of valve train damage or even a scored piston in that range with this motor. Once you get higher you're likely damage a lot more along with it.
Old 02-02-2015 | 09:33 PM
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Came across this on You-tube.
As suspected. It's pretty clear that the shift point is 7800 rpm. Which then begs the question of where redline is and when fuel cut would engage?
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Old 02-02-2015 | 10:19 PM
  #63  
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Originally Posted by jimbo1111
Came across this on You-tube. Porsche 911 Carrera GTS vs 911 GT3 Test 0-200 km/h & Sound sport auto - YouTube
As suspected. It's pretty clear that the shift point is 7800 rpm. Which then begs the question of where redline is and when fuel cut would engage?
nice work!
Old 02-03-2015 | 01:16 PM
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Ok, I can definitively state that a '14 C2S non powerkit, non GTS limiter is just north of 7,800. Without data logging I would say 7,825 as it's moving pretty fast and 200 rpm increment are not precise tools of measurement. So, "red line" is 7,600, maximum allowable engine speed is 7,800, and fuel cut off limiter is 7,825ish, with max power being produced at 7,400 on S and GTS models. Not sure any of us are better off than 5 pages ago but there you have it for a car that looks suspiciously like mine...
Old 02-03-2015 | 02:03 PM
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There appears to be a slight difference between the 991's 7600rpm's vs the GTS's 7800rpm's shift points. Judging from these two videos.
Old 02-06-2015 | 01:07 AM
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So it appears all the engines that have 7800 rpm redlines and shift points have the redline marker at 7600 rpm. That goes from the C2S to 991GTS to the new GT4. I can't believe it was all a mistake. Could it be that Porsche did that to compensate for the slight shift delay that would be expected for manual shifts (stick and PDK) and it's as simple as that.
Old 02-06-2015 | 02:34 AM
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Originally Posted by jimbo1111
There appears to be a slight difference between the 991's 7600rpm's vs the GTS's 7800rpm's shift points. Judging from these two videos. Launch Control! 2013 Porsche 991 911 Carrera 4S Launch Control Video 0 - 165 mph acceleration test - - YouTube
Is there a need to turn the traction control off for launch control?
Old 02-06-2015 | 01:34 PM
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Originally Posted by Dalema
Is there a need to turn the traction control off for launch control?
I don't believe so. Leaving TC on would slow down net performance. TC controls wheel spin via the braking system. I don't believe the computer algorithms are fast enough to counter loss of motion due to the affects of braking. The technology is't there yet.
Old 02-06-2015 | 01:42 PM
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Originally Posted by shaytun
So it appears all the engines that have 7800 rpm redlines and shift points have the redline marker at 7600 rpm. That goes from the C2S to 991GTS to the new GT4. I can't believe it was all a mistake. Could it be that Porsche did that to compensate for the slight shift delay that would be expected for manual shifts (stick and PDK) and it's as simple as that.
As others have already stated. It is most likely an over sight on Porsche's part. The Tac on the GT4 has a 7800 redline. GTS owners are kinda screwed. Germans can and do make mistakes after all.
Old 02-06-2015 | 01:43 PM
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Originally Posted by jimbo1111
There appears to be a slight difference between the 991's 7600rpm's vs the GTS's 7800rpm's shift points. Judging from these two videos. Launch Control! 2013 Porsche 991 911 Carrera 4S Launch Control Video 0 - 165 mph acceleration test - - YouTube
I believe it is due to the PowerKit (x51 option) on the GTS, which has a different throttle map. Same tach dial / faceplate is used on both models.
Old 02-06-2015 | 02:58 PM
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Originally Posted by jimbo1111
As others have already stated. It is most likely an over sight on Porsche's part. The Tac on the GT4 has a 7800 redline. GTS owners are kinda screwed. Germans can and do make mistakes after all.
I can't download the picture from my phone but it looks like 7600 rpm on the GT4 tach to me. I agree everyone makes mistakes but on so many cars?
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Old 02-06-2015 | 07:57 PM
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Too bad 2K off the tac doesn't translate to 2K off the price...
Old 02-06-2015 | 08:57 PM
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Originally Posted by SDaddy
Too bad 2K off the tac doesn't translate to 2K off the price...
Ha! It does. Just buy an s. You will save more than two grand.



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