Re: OFFICIAL: 991 Turbo and Turbo S
Dario:
sorry rc, maybe correct for the 12C but completly incorrect for the f12 berlinetta.What was the words for the autocar Journalist from the comparo f12 vs 991 Turbo s vs sls.The f12 was a small dot and desapired.Standing Kilometer mph 170mph for berlinetta vs 161 for Turbos or almost 16kmh difference in Speed.In the Speed range 250-300 kmh a 991 Turbo s and McLaren needs about 15 secs, where the f12 is around 9 secs. That is huge, and shows not just the extra power but also that proper gearing is very important as well, no silly overdrive in the f12
I'm not sure we watched the same video?
I am pretty confident that if Porsche would allow the Turbo S the full 1.2 bar boost pressure over the whole speed range (at full acceleration), the Turbo S would keep up with the F12 or at least fall back very very slowly only. From 0-160 kph, there aren't currently many cars to be a challenge for the Turbo S, even the F12 is not one of them but in the speed range 160 to 240 kph, the boost pressure just isn't high enough, so the Turbo S falls back. I usually get 0.8 to 1.0 bar in this speed range (sometimes 1.1 bar). From 250 kph on, I see full 1.2 bar up to almost top speed, which may be explained by issues with PDK in the lower speed range. Otherwise I wouldn't really know why Porsche would limit the boost pressure. Unless they would need a higher fuel pressure in that speed range (for whatever reason) and somehow, this isn't possible. Still suspecting the PDK though.
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RC (Germany) - Rennteam Editor Porsche 991 Turbo S, Cayenne GTS (958), BMW X3 35d (2013)