well, sort of.

the videos i posted recently raised a lot of questions, chief of which was "how could the GT2 lose by that much?"

so i tried a different approach this time, measuring both cars' 60-130mph times on a VBox. while the data was taken on two separate days, atmospheric conditions were basically the same:

- 88-89 deg F
- approx 80% relative humidity

both cars were also on the same gas, the equivalent (roughly) of CA 91 octane, at best.

both cars are 100% stock.

bottom line seems to be: 60-130mph, the two cars are basically just as fast as each other, BUT ONLY IF:

1) the GT2 is already ON BOOST;
2) the GT2 driver doesn't flub a shift

critically, it seems that the GT2 is indeed faster, as the speeds rise, and its the PDK's silly shifting that keeps it in the game.



from here you can see:

1) GT2 (blue line from bottom left corner to top right corner) is accelerating harder in each gear, but each time there's a shift, if falls behind again. in contrast, the PDK (orange line) acceleration is just seamless;

2) more importantly IMO, the GT2 is accelerating harder at the end. the slope of the PDK's acceleration curve is flattening out, whereas the GT2's is still looking pretty strong. FWIW, ave long-G's over the last 30mph or so of the run has the PDK is pulling about 0.28 G's, while the GT2 is pulling 0.31 G's.

finally, the PDK was actually going DOWNhill overall for this run (total elevation change was roughly -2 meters) while the GT2 was going UPhill, with a total elevation change of around +3 meters.

i know there's a way to normalize the numbers for the difference in level change, but someone will have to figure that one out for me

My take-away from all this is that in an ideal world, with a perfectly level surface, and with perfectly timed shifts, and with both cars on boost at the same time, YES the GT2 would be ahead.

but in the real world, the PDK driver holds the advantage-- at least at these "sane" speeds.

there's a lot of VBox experts out there i know, so if i've got my interpretation TOTALLY wrong, please speak up!

 

Superb post JV, very interesting indeed.

Ill still take a GT2 any day though

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Thanks for the info. PDK ftw
I'll take the 997.2 Turbo any day.

 

Great info. This seems more accurate. GT2 ftw.

 

Now that's more like it! Good of you to re-test again.

 

Awesome test, thanks. GT2 FTW

 

Awesome!!