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Same track (MAGNY-COURS), same driver, same day(?)
Tires/Lap time:
GT3RS: Cup 2-R / 1.48:34
GT4RS: Cup 2 / 1.53:43
If the tires account for 2 seconds on this sub 2-minute track, the 3RS is still almost 3 seconds faster.
GT3RS has slightly more powerful engine, GT4RS is lighter.
Probably hard to assess the impact of the tire, i.e. Cup 2 vs. Cup 2 R. Real comparison would be same tire, same driver, same track, same day.
Having said that: clearly already 992 GT3 (non RS!) is faster than the GT4 RS because of wider tires and better suspension. So 992 GT3 RS with much more aero should be even faster, especially on a track where all the aero helps.
oooooooff he was quicker in a 675LT (1:48.00) and nearly identical in a 600LT (1:48.39), 992 GT3 (1:49.54), 991.2 GT3 RS (1:50.36 damp), 991 GT2 RS (1:47.16), STO (1:47.73), 720S (1:47.05), Senna (1:42.99).
992 GT3 RS 1:48.34 - in near perfect conditions and on CUP2R.
The Ferrari 296 GTB was nearly 40-50kmh faster through the start finish line, huge difference and very close to Pista pace.
Reality, on a technical circuit the difference between a 992 GT3 RS, 992 GT3, 718 GT4 RS and 991.2 GT3 RS will come down to tires and driver. In other words the differences in performance between these cars is far, far less than the marketing would have you believe.
Another point GP circuits tend to favour torque+HP+aero and as a rule NA 6cyl cars are going to be disadvantaged.
We now know why Porsche have been careful where the 992 GT3 RS has been presented to "j"ournalists.
Magny seems to favour HP over grip, I was there last summer in my 992 GT3. Mate is a McL 600LT was noticeably faster and would lose me after a lap or two.
Whereas the day before we were at Dijon and there he couldn't keep up with me.
Another point GP circuits tend to favour torque+HP+aero and as a rule NA 6cyl cars are going to be disadvantaged.
Originally Posted by rost12
Magny seems to favour HP over grip, I was there last summer in my 992 GT3. Mate is a McL 600LT was noticeably faster and would lose me after a lap or two.
Whereas the day before we were at Dijon and there he couldn't keep up with me.
It seems to be the case here at this track when comparing these two RS cars with other higher HP cars.
For 3RS vs 4RS, we can see the difference here between these two models with mostly the same engine. (Albeit the CUP2R probably contribute to 1/2 of the difference)
Originally Posted by DK7
Not sure the GT4 RS lap time was the best possible! GT3RS lap looks way cleaner.
Both cars had all nannies turned off.
Maybe the 3RS 's big aero and better suspension make the car a lot easier to drive.
There is no doubt in my mind now, that the GT3 RS aero package is the test run for the 992 GT2 RS - if you run the calcs on corner speed for the 992 GT3 RS, the differences are real but also relatively small for a large number of corner radii. The implication is simple, it can only deliver a relatively small improvement in track time - at the end of the day its a ~500HP car on CUP2 R, its not going to be that much different to other 500HP cars on CUP2R particularly from the same manufacturer.
On this type of circuit tires matter a lot (they do on most but as the average speed moves up tires matter more and more) - the difference between CUP2 and CUP2R varies between 1s per minute and 1.5s per minute, on this track I would put it at the higher level bringing the 4RS time to 1:50.43. Still down on the 992 GT3 RS, but to be expected given the reasonable difference in transverse and radial contact patch size plus 20Nm less torque and significantly less aero.
It should be noted that Silverstone GP has an average speed of 165kmh, Magny Cours GP is 148kmh and a technical circuit like Anglesey Coastal is 124kmh. At the latter, the 4RS was marginally quicker than the 992 GT3 and the 991.2 GT3 RS was about 1s quicker than both (but on CUP2 R) - in other words there was a bees dick in it between all three cars (with the same driver). That won't change with the arrival of the 992 GT3 RS.
As the average track speed drops, the gap closes (considerably) between the Porsche ~ 500HP cars.
It’s going to be truly fascinating to watch these comparison lap times now that cars are getting into customers hands. Suspect that the GT3 and RS will be pretty closely matched at most tracks, which raises the question of why would you need spend the extra cash when the 992 GT3 is already so darn good? and it has the added benefit of luggage space. My 992 GT3 is 1.5 years old now and it’s a great car, looks epic in Python. I have an RS allocation, but with price increase and removal of Python paint option it has me questioning why I need it? Strange times
It’s going to be truly fascinating to watch these comparison lap times now that cars are getting into customers hands. Suspect that the GT3 and RS will be pretty closely matched at most tracks, which raises the question of why would you need spend the extra cash when the 992 GT3 is already so darn good? and it has the added benefit of luggage space. My 992 GT3 is 1.5 years old now and it’s a great car, looks epic in Python. I have an RS allocation, but with price increase and removal of Python paint option it has me questioning why I need it? Strange times
Its a tricky one, to some degree its the law of diminishing returns - I still think its a great car and technical tour de force but as lap times get quicker the ability to improve performance gets evermore expensive (and I mean really expensive if you want a car to be road registered) other than from cheap HP/torque through turbocharging.
I wouldn't be put off, the only reason I dropped my allocation was because of the projected/anticipated/changed/forecast delivery delays and I also had other options I wanted to explore.
I'm sure you'll really enjoy the car when you get it - it just won't be mind alteringly quicker than your 992 GT3.
Another point to contemplate is the jump from the 997 series to 991 series was large, in fact the 991.2 C2S outperformed the 997.2 GT3, whereas and in contrast, the jump from 991 to 992 was small e.g. 992 C2S is comprehensively out performed by the 991.2 GT3.
04-17-2023, 01:15 AM
GT3RS vs Gt4RS at MAGNY-COURS
