CAlexio

What configurator is that??

(I have to admit it looks pretty good actually)

Gravs

It only seems to be on the Kazakhstani one so far.

0Q991

Haha. Had to do a serious double take. Btw, time to update your avatar!

997TTMeteor

Looks like someone did it:

http://www.autogespot.com/porsche-991-gt3-2/2014/08/04

frayed

looks neutered.

Petevb

I love the look. With that big splitter up front intact, however, I'd be very afraid on the autobahn. Too much front downforce is not fun...

CAlexio

Is that an uber-exclusive option?

frayed

It's called the code brown oversteer option. Only 5000 euro.

timothymoffat

Love to see one with a duck in place of the larger wing. The configurator pic looks cool.

CAlexio

You don't think that ducktail offers some downforce with that huge inclination, it's practically like an airbrake

Petevb

It looks no better that the 991S spoiler extended. And the 991S makes balanced downforce without a front splitter. I seriously doubt the 991's front splitter could be balanced by the ducktail alone. Of course on the street in the US you'd never notice.

Ducktails are not as effective as you might think. The original cut rear lift nearly in half. Sounds good until you realize a GT3's rear wing makes significant downforce...

CAlexio

thanks for that info... good graph... I love when people dig up old stuff like this.

Drifting

Pete,

do you have an info like that on modern porsche wings?

Ductail vs extended carrera rear spoiler vs GT3 vs GT3RS vs turbo?

Petevb

From Sport Auto's Supertests, downforce at 124 mph:

991S: 4.4 lbs front/ 0 lbs rear (spoiler extended)
991 GT3: 40 lbs front/ 64 lbs rear
991 Turbo S: 44 lbs front/ 88 lbs rear

When you change one end you effect the other. For example adding a wing to the back will cause the car to change rake, potentially causing the front to nose-up and increase lift. I would expect the GT3 without the rear wing to nose down at the front substantially, increasing front downforce further and make more than the 40 lbs at 124 mph quoted above. Also downforce goes to the square of the speed, so I could easily see a GT3 with only a rear spoiler making 150 lbs more downforce on the front vs the rear near terminal velocity. Which would be bad...

CAlexio

And there I was, naively thinking it was all just for show...