GrantG

Top speed is not influenced by weight (just the time it takes to get there), assuming you adjust tire pressure to prevent additional friction of the tires, etc...

But with the small difference in weight of these model, even that is unnecessary.

ThEnder

^You're right, that was a dumb answer. I honestly have no idea.

Holdens

I think that is the most honest and truthful answer I have seen on RL..

Applies to 99% of posts - mine included!

evilfij

They do not have the same aero. That’s probably the answer.

And I agree vmax is an estimate.

Porsche911GTS'16

I recall in one of AP's interviews, he mentioned the Gurney flap on the GT3T was in response to things the engineers learned about the 911 R and decided to do differently with the GT3T. I would deduce from that comment (I am not quoting him word for word) that they see the Gurney flap as an improvement in the aero over the 911 R. If the aero is actually improved (and I have no proof of that other than what I recall him saying in the interview), you would think that the GT3T would go at least as fast as the R. But at the end of the day, those are speeds I will never see in my GT3T anyway. If I hit a buck and a quarter someday, I'll be a happy camper.

GrantG

FYI - that's only 5,000 rpm in 6th gear (half way on the tach)

Another reason that Euro Delivery option rate is too low...

Porsche911GTS'16

GrantG - yep. No way I will ever push this car's limits. But I have to agree with others who have found the 991.2 GT3 in manual to be fun to drive even at low speeds. The driver engagement, the sound, the steering, the handling, its magnificent even when the car isn't being pushed. I can only imagine how epic the ride will be once I start to actually push the car to, say, half its limits.

GrantG

Yeah, it is fun at any speed. But you need to do some track days to realize what a gem you really have there

Porsche911GTS'16

I agree with you 100%. It was built for the track and deserves to be let loose on the track. I am sure that I will do just that at least once, even though I am not much of a track guy.

Petevb

Per Porsche:

Touring 316 kph
Wing manual 320 kph
911R 323 kph

They list the Touring's CD as .35, the wing's as .33 and the R as .32, which accounts for the difference. Wings are a more efficient way to make lift/ downforce than spoilers. The R is slippery but reportedly spooky at high speed- much less downforce than the Touring.

GrantG

Thanks, Pete

Do you think the Winged car’s scoops improve power over the other 2 at speed?

Petevb

I expect they do. The Touring looks like it pulls from a high pressure area as well, but the wing’s looks more effective to my eyes. Not sure about the R.

I suspect top speed numbers are calculated, quite possibly based on assumed (published) power figures. Real world given dynos and ram air I would not be surprised if the average winged GT3 was quicker than the average R (there’s obviously significant sample to sample variation).

Taffy66

The R actually had lift at V max and the Touring in contrast has a small amount of downforce..The guerney flap was fitted to the Touring in response to the R's lift issues..An upright spoiler is very inefficient in creating downforce compared to a high fixed wing..The winged GT3 produces exactly twice as much downforce as the Touring's spoiler and with less drag which accounts for the 3mph higher top speed...

Marcelo Cataldo

https://www.evo.co.uk/porsche/911-gt...-the-next-911r

"As a result of the aero changes there is less downforce produced, but there’s less drag too, with Touring Pack equipped GT3s quicker than a manual GT3 with the standard body. Cars fitted with the Touring Pack also require their ECUs to be reworked and this requires GT3s ordered with the Touring Pack to have a different wiring loom fitted. It’s one reason why existing GT3s can’t be retro-fitted with the Touring Pack."

PatrickBateman

Floor mats or dynomat?