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Re: GT4RS
The conventional wisdom has always been that the Boxster/Cayman platform was the more nimble and better handling platform than the 911, but it always had an inferior drivetrain (holding it back from being as fast as the 911).
With the GT4 RS, the car is now faster than a GT3 in a straight line (largely due to its newly excellent low gearing), but slower in the corners. Interesting reversal...
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22 GT3 Manual, 73 Carrera RS 2.7 Carbon Fiber replica (1,890 lbs), 06 EVO9 with track mods. Former: 18 GT3 Manual, 16 Cayman GT4, 73 911S, Two 951S's, 996 C2, 993 C2, 98 Ferrari 550, 79 635CSi
Re: GT4RS
I think up to the apex the Boxster/Cayman is easier to throw into the curve and more naturally balanced. But from thereon the superior traction of the 911 gives a high exit speed.
I am not a racer but from owning such cars this is my conclusion.
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"Porsche....and Nothing else matters"
Re: GT4RS
reginos:I think up to the apex the Boxster/Cayman is easier to throw into the curve and more naturally balanced. But from thereon the superior traction of the 911 gives a high exit speed.
I am not a racer but from owning such cars this is my conclusion.
No disagreement, but the new double wishbone on the 992 GT3 is an interesting evolution of this axiom and the big disparity in downforce plays a role on faster roads/tracks as well.
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22 GT3 Manual, 73 Carrera RS 2.7 Carbon Fiber replica (1,890 lbs), 06 EVO9 with track mods. Former: 18 GT3 Manual, 16 Cayman GT4, 73 911S, Two 951S's, 996 C2, 993 C2, 98 Ferrari 550, 79 635CSi
Re: GT4RS
So what makes the GT3 faster on track then the GT4 RS, having basically both the same engine and power.
The GT3 goes around corner faster due to his wider tires? 911 layout ?
Why is the GT4 slower when supposedly having the better chassis balance?
The 3RS has always given me so much confidence in high speed corners. Will the 4RS give me as much ?
Entering slower corners with the 911 layout when you arrive with lots of speed is always a bit of a challenge and it is where I usually get caught up by the mid engined cars. But once passed the apex...the 3RS lets you flore it without having to worry about loosing the back. Such a nice feeling !
Re: GT4RS
Gnil:So what makes the GT3 faster on track then the GT4 RS, having basically both the same engine and power.
The GT3 goes around corner faster due to his wider tires? 911 layout ?
Why is the GT4 slower when supposedly having the better chassis balance?
The 3RS has always given me so much confidence in high speed corners. Will the 4RS give me as much ?
Entering slower corners with the 911 layout when you arrive with lots of speed is always a bit of a challenge and it is where I usually get caught up by the mid engined cars. But once passed the apex...the 3RS lets you flore it without having to worry about loosing the back. Such a nice feeling !
Much smaller footprint?
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1988 Peugeot 205 Rallye / 2004 Porsche 996 GT3 RS / 2018 Mercedes-AMG E63 S / 2020 Ferrari 812SF
Re: GT4RS
Gnil:So what makes the GT3 faster on track then the GT4 RS, having basically both the same engine and power.
The GT3 goes around corner faster due to his wider tires? 911 layout ?
Why is the GT4 slower when supposedly having the better chassis balance?
The 3RS has always given me so much confidence in high speed corners. Will the 4RS give me as much ?
Entering slower corners with the 911 layout when you arrive with lots of speed is always a bit of a challenge and it is where I usually get caught up by the mid engined cars. But once passed the apex...the 3RS lets you flore it without having to worry about loosing the back. Such a nice feeling !
The 992 GT3 enjoys the following benefits for lap time over the GT4 RS:
1. Much better suspension on both axles (double wishbone front and mult-link rear vs. Struts at all 4 corners)
2. Much more downforce (over 50% more)
3. Wider track and bigger tires (255 and 315 with 21" in rear vs. 245 and 295 all 20")
4. Active electronically controlled LSD (on PDK model) vs mechanical diff
5. Rear axle steering
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22 GT3 Manual, 73 Carrera RS 2.7 Carbon Fiber replica (1,890 lbs), 06 EVO9 with track mods. Former: 18 GT3 Manual, 16 Cayman GT4, 73 911S, Two 951S's, 996 C2, 993 C2, 98 Ferrari 550, 79 635CSi
Re: GT4RS
Grant:The 992 GT3 enjoys the following benefits for lap time over the GT4 RS:
1. Much better suspension on both axles (double wishbone front and mult-link rear vs. Struts at all 4 corners)
2. Much more downforce (over 50% more)
3. Wider track and bigger tires (255 and 315 with 21" in rear vs. 245 and 295 all 20")
4. Active electronically controlled LSD (on PDK model) vs mechanical diff
5. Rear axle steering
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22 GT3 Manual, 73 Carrera RS 2.7 Carbon Fiber replica (1,890 lbs), 06 EVO9 with track mods. Former: 18 GT3 Manual, 16 Cayman GT4, 73 911S, Two 951S's, 996 C2, 993 C2, 98 Ferrari 550, 79 635CSi
You summed it up perfectly. Thanks.
Now one can dream of a GT4 RS with all the above 
Re: GT4RS
Grant:Gnil:So what makes the GT3 faster on track then the GT4 RS, having basically both the same engine and power.
The GT3 goes around corner faster due to his wider tires? 911 layout ?
Why is the GT4 slower when supposedly having the better chassis balance?
The 3RS has always given me so much confidence in high speed corners. Will the 4RS give me as much ?
Entering slower corners with the 911 layout when you arrive with lots of speed is always a bit of a challenge and it is where I usually get caught up by the mid engined cars. But once passed the apex...the 3RS lets you flore it without having to worry about loosing the back. Such a nice feeling !
The 992 GT3 enjoys the following benefits for lap time over the GT4 RS:
1. Much better suspension on both axles (double wishbone front and mult-link rear vs. Struts at all 4 corners)
2. Much more downforce (over 50% more)
3. Wider track and bigger tires (255 and 315 with 21" in rear vs. 245 and 295 all 20")
4. Active electronically controlled LSD (on PDK model) vs mechanical diff
5. Rear axle steering
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22 GT3 Manual, 73 Carrera RS 2.7 Carbon Fiber replica (1,890 lbs), 06 EVO9 with track mods. Former: 18 GT3 Manual, 16 Cayman GT4, 73 911S, Two 951S's, 996 C2, 993 C2, 98 Ferrari 550, 79 635CSi
And all of those are for fixing the inherit weakness of a rear engine chassis. Namely, it doesn't want to change direction quickly.
Mid engine cars are inherently unstable, it just wants to turn, some called that nimble, which is what racers love. Hence why all fast race cars are mid-engined, be it front mid or rear mid.
Porsche been fine tuning the rear engine chassis for more than half a century, they know what's needed. All their 911 race cars are a joy to drive. Outside of the mid engine RSR, all needs 911 driving style to extra the most, namely trail deep into corners and early throttle, basically man handled it into a corner to rotate, a bit trickier on corner entry as too much trial braking will send the car rotating too much. A bit more forgiving on heavy foot at corner exits than mid engine cars however. Modern 911s are also great in giving early warning if the tail is about to come out on throttle application so plenty of time to catch it.
The Caymans would need a bit more finesse on corner exits, it wants to rotate the wrong way if not careful. But it also doesn't need to be manhandled into corners, it can float in and out, so plenty of time mid corner to correct mistakes.
So one is easier on exit and harder on entry, the other one is the reverse.
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Re: GT4RS
Whoopsy:Grant:The 992 GT3 enjoys the following benefits for lap time over the GT4 RS:
1. Much better suspension on both axles (double wishbone front and mult-link rear vs. Struts at all 4 corners)
2. Much more downforce (over 50% more)
3. Wider track and bigger tires (255 and 315 with 21" in rear vs. 245 and 295 all 20")
4. Active electronically controlled LSD (on PDK model) vs mechanical diff
5. Rear axle steering
And all of those are for fixing the inherit weakness of a rear engine chassis. Namely, it doesn't want to change direction quickly.
True, the 992 most benefit tremendously from the better suspension and most probably does more than the Cayman would.
I assume the rear-wheel steering is the deciding factor between the two in terms of lap times, I believe there was an article about it how much improvement it brings. The majority of time difference between the two should be due to that feature. Nonetheless, I appreciate that Porsche omitted this on the Cayman as I find the handling to be more natural like that. They must've been limited in space to install it in the first place anyhow.
Re: GT4RS
Some very glowing complimentary audio comments about 4RS here at 21:21
https://audioboom.com/posts/8080576-matt-farah
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22 GT3 Manual, 73 Carrera RS 2.7 Carbon Fiber replica (1,890 lbs), 06 EVO9 with track mods. Former: 18 GT3 Manual, 16 Cayman GT4, 73 911S, Two 951S's, 996 C2, 993 C2, 98 Ferrari 550, 79 635CSi
Re: GT4RS
I like the techniques used on the 911 platforms. Turning a non ideal and unique engine layout into one of the most efficient car, using all it's qualities and erasing the downfalls without compromising much on driving feel. That is proper engineering ! And owning a car with that kind of technique is a real plus to me.
Re: GT4RS
ABSC Supertest - Porsche 718 Cayman GT4 RS
Sachsenring - 1:29,12 / Vmax: 238,3 km/h vs (992 GT3 - 1:27,93 / Vmax: 238,9 km/h)
Maximum Lateral (G-Force) Acceleration: 1,76 g
Power (PS) / Torque (Nm): 508 / 472
Acceleration:
0-50: 1,4
0-80: 2,4
0-100: 3,2
0-130: 4,8
0-180: 8,4
0-200: 10,5
0-250: 18,5
0-280: 28,5
1/4 Mile: 11,14
Braking:
100-0 (Cold): 31,2 m
100-0 (Warm): 29,0 m
200-0 (Warm): 112,6 m
Slalom 18m: 76,4 km/h
Tires: Michelin PSC-2R
Weight: 1,424 kg
Price as Tested: 179,941 Euro
Re: GT4RS
BiTurbo:1/4 Mile: 11,14
That's pretty shocking that a stock Cayman nearly ran a Quarter-Mile in the 10's... 
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22 GT3 Manual, 73 Carrera RS 2.7 Carbon Fiber replica (1,890 lbs), 06 EVO9 with track mods. Former: 18 GT3 Manual, 16 Cayman GT4, 73 911S, Two 951S's, 996 C2, 993 C2, 98 Ferrari 550, 79 635CSi
Re: GT4RS
Gauss:Btw here is my updated list of current GT4 RS specs.
Thanks . Love to check out those graphs.
One thing that is probably wrong is the number of black rims. The standard dark grey rims are not in the list. I suppose dark grey and black rims have been added together .
WP is chosen by 82% of the buyers. It is huge and Porsche should do it the other way around. WP standard and you can choose a no cost delete
LED's in our market are standard. No choice between Bi-Xenon or LED.
And as it turns out, my choice of options are all in the most commun.
Re: GT4RS
Gnil:Gauss:Btw here is my updated list of current GT4 RS specs.
Thanks . Love to check out those graphs.
One thing that is probably wrong is the number of black rims. The standard dark grey rims are not in the list. I suppose dark grey and black rims have been added together .
WP is chosen by 82% of the buyers. It is huge and Porsche should do it the other way around. WP standard and you can choose a no cost delete
LED's in our market are standard. No choice between Bi-Xenon or LED.
And as it turns out, my choice of options are all in the most commun.
OMG, do not give them more ideas!! 
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Re: GT4RS
Gnil:Thanks . Love to check out those graphs.
One thing that is probably wrong is the number of black rims. The standard dark grey rims are not in the list. I suppose dark grey and black rims have been added together .
Indeed, there must be something wrong. There's almost no dark silver, they all look black in the VIN Art configurator.
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