How effective are canards actually? Surface area seems so small (compared to the rear wing and splitter). Also are the vortexes really powerful enough, that they could ditch the front louvres? It's even more interesting considering the 992 GT3RS will have them. Thanks for the video! Really looking forward to more content :D
I'm not too sure of the canards but maybe they took the louvers away given that the low energy air the comes off the top of the wheel arch could easily go straight into the side intake? Not entirely sure about that but it could be a reason
There are more for vortices and creating an up-flow-flow-field at the side rather than pure downforce. These vortices can help quite a bit to get air out of the wheel arches and usually they are used in combination with louvres. Louvres are always on the car and canards are changed according to the setup.
One big aspect of 992 is its departure from Macpherson front suspensions to double wishbone, seems to make a lot of difference in the 992Gt3Cup VS previous iterations
The GT3R already had double wishbone suspension since the 991.2 generation. In the cup car it was introduced with the 992 generation as you already mentioned.
I think that SCREAMING engine note at the start is not needed, or dial it down a little? 😁 Interesting that the GTE RSR was more rear engined design and that class is now coming to an end to be replaced by GT3 so I guess this will now be Porsche's entry at Le Mans along with the LMH.
Why in your opinion did Porsche prefer a rectangular duct over a NACA duct for the driver cooling? Wouldn't have a smoother bodywork offered by the NACA duct be better?
Interesting analysis. The rear mounted engine surely compromises a lot. Tilting the engine up seems like a desperate move to gain some aerodynamic advantage.
Great car, just can't understand why they don't run the Caymen, it's a mid engine and they could probably make it as an RSR, it will probably be fast and competitive. Thanks for the nice video
Maybe Porsche feels the wheel arch venting from behind the tire is enough? Or perhaps they are just trying to cut drag and flow in that area. Or a more radical thought, is that they have vented the inside of the fenders to the central radiator ducting.
Louvres are a well established and proven device. Porsche used it over generations. And because of the short wheelbase the distance to the driver's door is not a lot, so venting behind the wheel is not as good as on other GT3 cars... It's possible, as you said, they wanna clean the flow towards the side inlets but others can do that even with louvres. Let's see how the car looks like when it hits the track.
I think that Porsche are missing a trick here. It would be rather simple to take the floor pan of the Boxster and make a clubman's 911 RSR with proper suspension ? All of this tinkering with the Tatra layout seems to be driven by the grey suits in marketing and/or financial control. No doubt this is not beyond the scope of a few RUclipsrs. Autofarm...this is your next project!
It's truly amazing what the old Tatra layout has become. A 4.2l Cayman RSR would be a better choice from a technical point of view, but somehow it's cool to see such a unique concept in the GT3 field. ...And Porsche customers should rather buy a 911 than a Cayman...
@@BSport320 Genau. I meant Cayman floorpan as I was thinking that this would be an easy way to create a new model (without copying Ruf, Singer or others). A sort of shopping RSR with an optional red stripe.
If they wanted to optimise the weight distribution, then why didn't they go in the way of the 911 rsr and go for a mid engine car. This also allows for a bigger diffuser
Hey, the pic you put where it said RSR (Rothman livery) and GT3R (the white car) are both RSRs The Rothman is the '18 spec RSR The white is the '15 spec RSR
From what I've heard from (some) privateer members, mamy teams run the older 911 RSR's as there is not enough of a performance difference to justify spending so much on a brand new RSR gen every couple years
An open question for all. GT3 class will be the face of pure GT racing cars in 2024. Is it about time B.O.P aforded the GT3 class a higher top speed than 275kph? Perhaps allow them to reach 290 - 300kph depending on the b.o.p.? Numbers reminiscent of the late GTE class at least.
the disadvantages comes from rules not rear engine layout itself, aero diffuser cannot be extended like this : scontent-bom1-1.xx.fbcdn.net/v/t1.6435-9/200512964_10158136906767197_1103582014265107172_n.jpg?stp=cp0_dst-jpg_e15_fr_q65&_nc_cat=103&ccb=1-7&_nc_sid=110474&_nc_ohc=nBJ1lxKrTAcAX9hTFMz&_nc_ht=scontent-bom1-1.xx&oh=00_AT9-O_weLRqiee3moJGnh8TRwjXvWHytSS15YPO5MB4psw&oe=63157708 this couldve prevented need of large inefficient rear wing. rear tyre wear is again tyre size restrictions , the rear tyres are not wide enough to properly compensate for rear bias weight, which results in bad load distribution on rear tyre hence faster wear. lambo gt3 and audi gt3 suffers from same.
@@AKK5I no the rules don't allow such drastic changes in gt3 , the engine placement can only be modified slightly compared to road car. the rsr can do it because of rules allow. otherwise porsche too would have made shift to mid engine in gt3 class, as they already have rsr model to based that car around.
@@ohjonny95 i mean, a smaller diffuser does mean a larger and a drag-ier rear wing, and here it seems like everyone wants minimal drag but i guess BoP will just give the Porsche more engine power?
porsche should change their livery color. do not think of red black silver when i think porsche. thinking martini white. or wild highlighter colors like green and blue and magenta
Don't call 911 a "special concept", call it by what it is, a dumb concept which had good marketing support that made it stand out from the competition, thus survive. Plus the engineers were lazy enough to keep the rear location of the engine instead of making it mid, so they mess with tire compund or other tricks to compensate, but people will buy it anyway.
How effective are canards actually? Surface area seems so small (compared to the rear wing and splitter). Also are the vortexes really powerful enough, that they could ditch the front louvres? It's even more interesting considering the 992 GT3RS will have them. Thanks for the video! Really looking forward to more content :D
I'm not too sure of the canards but maybe they took the louvers away given that the low energy air the comes off the top of the wheel arch could easily go straight into the side intake? Not entirely sure about that but it could be a reason
There are more for vortices and creating an up-flow-flow-field at the side rather than pure downforce. These vortices can help quite a bit to get air out of the wheel arches and usually they are used in combination with louvres.
Louvres are always on the car and canards are changed according to the setup.
@@fernandezadrian6357 the Louvers were moved to the side
One big aspect of 992 is its departure from Macpherson front suspensions to double wishbone, seems to make a lot of difference in the 992Gt3Cup VS previous iterations
That is very true. The MacPherson concept reached its limits at the 911.
The GT3R already had double wishbone suspension since the 991.2 generation. In the cup car it was introduced with the 992 generation as you already mentioned.
Brilliant, thanks for the video. I love your technical details! 🏁🔥
That transition at 1:50 was really smooth
I think that SCREAMING engine note at the start is not needed, or dial it down a little? 😁 Interesting that the GTE RSR was more rear engined design and that class is now coming to an end to be replaced by GT3 so I guess this will now be Porsche's entry at Le Mans along with the LMH.
I hope GM releases their new Corvette C8 Z06 GT3 racecar soon so that I can watch your analysis of it!
Again a great video explaining everything very well.
Glad you enjoyed it
A beautiful piece of evolutionairy development of a car that's almost perfect. Love the whole body of that Porsche
once the FIA allowed GTE cars to have huge overhanging diffusers in the back, the RSR had to change its engine layout, or be left for dead.
I saw it live in spa last weekend its a beauty 👌
That is one sweet ride!
man the GT cars are such a juxtaposition to normal porsche 911s, which are much more modest yet crazy fast. i LOVE it
So informative
Why in your opinion did Porsche prefer a rectangular duct over a NACA duct for the driver cooling? Wouldn't have a smoother bodywork offered by the NACA duct be better?
I think in this case on this upsloping surface the rectangular duct gives a bit more mass flow.
geiles video, aber warum nur 5 min??? ich will 15 min sehen ;-)
cool stuff.
Interesting analysis. The rear mounted engine surely compromises a lot. Tilting the engine up seems like a desperate move to gain some aerodynamic advantage.
Yes but one advantage is the balance under braking ;)
Great car, just can't understand why they don't run the Caymen, it's a mid engine and they could probably make it as an RSR, it will probably be fast and competitive.
Thanks for the nice video
Maybe Porsche feels the wheel arch venting from behind the tire is enough? Or perhaps they are just trying to cut drag and flow in that area. Or a more radical thought, is that they have vented the inside of the fenders to the central radiator ducting.
Louvres are a well established and proven device. Porsche used it over generations. And because of the short wheelbase the distance to the driver's door is not a lot, so venting behind the wheel is not as good as on other GT3 cars...
It's possible, as you said, they wanna clean the flow towards the side inlets but others can do that even with louvres.
Let's see how the car looks like when it hits the track.
Regarding the front wheel well extraction it looks like its behind the front fender. Looks to be a massive gap there
Yes but others do that + louvres..
I think that Porsche are missing a trick here.
It would be rather simple to take the floor pan of the Boxster and make a clubman's 911 RSR with proper suspension ? All of this tinkering with the Tatra layout seems to be driven by the grey suits in marketing and/or financial control.
No doubt this is not beyond the scope of a few RUclipsrs. Autofarm...this is your next project!
It's truly amazing what the old Tatra layout has become.
A 4.2l Cayman RSR would be a better choice from a technical point of view, but somehow it's cool to see such a unique concept in the GT3 field.
...And Porsche customers should rather buy a 911 than a Cayman...
@@BSport320 Genau. I meant Cayman floorpan as I was thinking that this would be an easy way to create a new model (without copying Ruf, Singer or others). A sort of shopping RSR with an optional red stripe.
If they wanted to optimise the weight distribution, then why didn't they go in the way of the 911 rsr and go for a mid engine car. This also allows for a bigger diffuser
Sales of 911s may fall ?
That would require big changes to the regular production chassis and that's not allowed in GT3
Hey, the pic you put where it said RSR (Rothman livery) and GT3R (the white car) are both RSRs
The Rothman is the '18 spec RSR
The white is the '15 spec RSR
Oh that's true, my bad. Thanks for pointing it out!
But I guess you still got my point.
@@BSport320
Yes ofc I got your point, and as always thanks for the insights and great videos.
From what I've heard from (some) privateer members, mamy teams run the older 911 RSR's as there is not enough of a performance difference to justify spending so much on a brand new RSR gen every couple years
There is no more rsr.
An open question for all.
GT3 class will be the face of pure GT racing cars in 2024. Is it about time B.O.P aforded the GT3 class a higher top speed than 275kph? Perhaps allow them to reach 290 - 300kph depending on the b.o.p.? Numbers reminiscent of the late GTE class at least.
what benefits are there to putting the engine behind the rear axle, that they would stick to it? seems like it has lots of cons
Probably to save cost since it going to be based on the GT3 road car. They could well have made it mid engine like the RSR
There really aren't that much cons as you think
the disadvantages comes from rules not rear engine layout itself, aero diffuser cannot be extended like this :
scontent-bom1-1.xx.fbcdn.net/v/t1.6435-9/200512964_10158136906767197_1103582014265107172_n.jpg?stp=cp0_dst-jpg_e15_fr_q65&_nc_cat=103&ccb=1-7&_nc_sid=110474&_nc_ohc=nBJ1lxKrTAcAX9hTFMz&_nc_ht=scontent-bom1-1.xx&oh=00_AT9-O_weLRqiee3moJGnh8TRwjXvWHytSS15YPO5MB4psw&oe=63157708
this couldve prevented need of large inefficient rear wing.
rear tyre wear is again tyre size restrictions , the rear tyres are not wide enough to properly compensate for rear bias weight, which results in bad load distribution on rear tyre hence faster wear.
lambo gt3 and audi gt3 suffers from same.
@@AKK5I no the rules don't allow such drastic changes in gt3 , the engine placement can only be modified slightly compared to road car. the rsr can do it because of rules allow. otherwise porsche too would have made shift to mid engine in gt3 class, as they already have rsr model to based that car around.
@@ohjonny95 i mean, a smaller diffuser does mean a larger and a drag-ier rear wing, and here it seems like everyone wants minimal drag
but i guess BoP will just give the Porsche more engine power?
porsche should change their livery color. do not think of red black silver when i think porsche. thinking martini white. or wild highlighter colors like green and blue and magenta
.........Haaaaa....Did You Mention 500/750.000 U$S....?????????
this is ferari plagiarism
How so?
Don't call 911 a "special concept", call it by what it is, a dumb concept which had good marketing support that made it stand out from the competition, thus survive. Plus the engineers were lazy enough to keep the rear location of the engine instead of making it mid, so they mess with tire compund or other tricks to compensate, but people will buy it anyway.
The regulations don’t permit a engine placement change over the road car