911 GT2 vs Corvette Z06

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04-06-2008, 12:48 PM

#41

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Quote:

Originally Posted by srika

I was talking about roadcourse, where the Z06 will consistently run a few seconds faster than a 997T, on a regular course. If you want to talk 1/4 mile, the ET may be similar but the 997T traps 118-120 while the Z06 is at 125-127. BIG difference.

And, the last test I saw of the 997GT2, it ran 11.4 @ 127.9 - it is MUCH faster than the regular T.

Yea, that's exactly what I meant, the GT2 is much faster than the regular Turbo. The Turbo tiptronic is similar to the GTR, which usues its AWD and quick shifting to get good 1/4mile time, but power to weight ratio wins eventually, as shown by the trap speed. Best Motoring once got 210km/h (~129mph) trap speed in the Z06, probably because of tailwind?

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04-06-2008, 10:07 PM

#42

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Quote:

Originally Posted by rp_guy

must've been at a higher elevation

http://www.2-stroke-porting.com/altiden.htm

seriously, the stats on the 2 cars are so similar.. there's no way that the Z06 could lose that badly

The chassis and traction management systems that are on the Porsche are much more sophisticated than the Vette. That extra $110,000 does get you something.

Porsches Variable Turbine Geometry (VTG) and VarioCam Plus (Vtec on steroids) makes 505 lb/ft of torque from 2200 to 4500 RPM then rolls up to its 530 hp at 6500. It has Porsche Active Suspension Management (PASM), Porsche Stability Management (PSM). All that combines to a ridiculous transition of power to the road with no wheel spin or unsettling body movement. Then you've got Porsche Ceramic Composite Brakes (PCCB) to shave the speed off when necessary.

Nothing against the Vette, but it's like comparing NASA to some kids with a bottle rocket.

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04-06-2008, 10:17 PM

#43

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Lets all agree that the GT2 is a little faster than the ZO6. It shouldn't get beat as bad as it did in the video though. In the hands of weekend racers on a road course, however, the quickest lap is going to the better driver. The cars aren't so far apart in performance that a slightly better driver in the ZO6 couldn't make up the difference. Just R-compound tires alone would let the ZO6 walk the GT2 hands down. (I know, I'm stating the obvious with that one).