911R Driving Impressions
#407
Instructor
R vs RS
My odometer just flipped 1000 on the R and I have 995 on the RS. Both are incredible drives but very different. The R makes more mechanical noises (especially the single mass flywheel) which is music to this mechanical engineer. Lighter steering and it feels like you can steer it with the throttle (very similar to my 75 RSR). Feels like it has more torque and acceleration than the RS (I suspect due to the gearing of the 6-speed). Shifter is a dream. The RS is more surgical, especially in the mountains. RS handles better and sticks to the road/curves like nothing I've ever driven. Love the PDK too, especially on the track. The R is old school (so am I, as I race a R 2.0L clone). Hard to compare either the R or RS to the 997 4.0L RS (I had a black one and GT2RS). The 997 4.0L was an incredible car, but the RWS and chassis on the 991 changes everything. It's a step function approval for handling. The GT2RS still feels much faster than any Porsche I've driven. Can't wait for the 991 version.
#410
Addict
Rennlist Member
Rennlist Member
Nope, if anything the gearing (and redline) favors the RS slightly. It has to be down to the lighter flywheel and the greater efficiency of the manual gearbox (less power wasted as heat compared to PDK) - this common impression has been discussed before...
#411
Instructor
My odometer just flipped 1000 on the R and I have 995 on the RS. Both are incredible drives but very different. The R makes more mechanical noises (especially the single mass flywheel) which is music to this mechanical engineer. Lighter steering and it feels like you can steer it with the throttle (very similar to my 75 RSR). Feels like it has more torque and acceleration than the RS (I suspect due to the gearing of the 6-speed). Shifter is a dream. The RS is more surgical, especially in the mountains. RS handles better and sticks to the road/curves like nothing I've ever driven. Love the PDK too, especially on the track. The R is old school (so am I, as I race a R 2.0L clone). Hard to compare either the R or RS to the 997 4.0L RS (I had a black one and GT2RS). The 997 4.0L was an incredible car, but the RWS and chassis on the 991 changes everything. It's a step function approval for handling. The GT2RS still feels much faster than any Porsche I've driven. Can't wait for the 991 version.
#412
Rennlist Member
My odometer just flipped 1000 on the R and I have 995 on the RS. Both are incredible drives but very different. The R makes more mechanical noises (especially the single mass flywheel) which is music to this mechanical engineer. Lighter steering and it feels like you can steer it with the throttle (very similar to my 75 RSR). Feels like it has more torque and acceleration than the RS (I suspect due to the gearing of the 6-speed). Shifter is a dream. The RS is more surgical, especially in the mountains. RS handles better and sticks to the road/curves like nothing I've ever driven. Love the PDK too, especially on the track. The R is old school (so am I, as I race a R 2.0L clone). Hard to compare either the R or RS to the 997 4.0L RS (I had a black one and GT2RS). The 997 4.0L was an incredible car, but the RWS and chassis on the 991 changes everything. It's a step function approval for handling. The GT2RS still feels much faster than any Porsche I've driven. Can't wait for the 991 version.
Jeff
#413
Race Director
Originally Posted by GrantG
Nope, if anything the gearing (and redline) favors the RS slightly. It has to be down to the lighter flywheel and the greater efficiency of the manual gearbox (less power wasted as heat compared to PDK) - this common impression has been discussed before...
#414
Addict
Rennlist Member
Rennlist Member
#415
Drifting
You also need to factor in that the R runs a slightly higher compression ratio than the RS and the engine also runs a few degrees cooler than the RS as well. But I agree with the sentiment that the R pulls stronger. Feels like the car has 550hp.
#416
Rennlist Member
#418
Instructor
Thread Starter
Good fun reading everyone's driving impressions - I have been away from this thread too long!!
Some comments on the 911R's acceleration vs the 911 GT3 RS and the 911 Turbo...
The R's acceleration is very good despite not having launch control, and despite its slower manual gearshifts.
If you are a complete barbarian (not me!), a 4000 rpm clutch drop is the hardest possible launch on a 911R. But even that brutal clutch drop is tame compared an RS which can be launched at 6700 rpm, or a 911 Turbo at 5600 rpm. As a result, the RS is about 0.5 sec faster to 100 km/h, and the Turbo about 1 sec faster. The 911R's 0.5 sec disadvantage to the RS is mostly at launch. And the 1 sec disadvantage of the Turbo is due to a combination of the Turbo's incredible launch and very strong mid range power.
However, the R does a lot better once moving. From 100 km/h to 200km/h, the R accelerates harder than the RS and is only a few ticks behind the Turbo. Once over 200 km/h, the R accelerates faster than both the RS and the Turbo. Not bad to outrun the RS at highway speeds, and the Turbo at high speed.
The old school hot rod 911R packs a punch!
Some comments on the 911R's acceleration vs the 911 GT3 RS and the 911 Turbo...
The R's acceleration is very good despite not having launch control, and despite its slower manual gearshifts.
If you are a complete barbarian (not me!), a 4000 rpm clutch drop is the hardest possible launch on a 911R. But even that brutal clutch drop is tame compared an RS which can be launched at 6700 rpm, or a 911 Turbo at 5600 rpm. As a result, the RS is about 0.5 sec faster to 100 km/h, and the Turbo about 1 sec faster. The 911R's 0.5 sec disadvantage to the RS is mostly at launch. And the 1 sec disadvantage of the Turbo is due to a combination of the Turbo's incredible launch and very strong mid range power.
However, the R does a lot better once moving. From 100 km/h to 200km/h, the R accelerates harder than the RS and is only a few ticks behind the Turbo. Once over 200 km/h, the R accelerates faster than both the RS and the Turbo. Not bad to outrun the RS at highway speeds, and the Turbo at high speed.
The old school hot rod 911R packs a punch!
#419
The 50 kg quoted weight difference makes the R equivalent to a 991 RS with 518 hp. Porsche quotes the lightest possible spec, so an RS with steel discs and Clubsport package (does anyone know their weights?) would equate to at least a 30 hp difference. However the fractionally lower first 4 ratios of the RS give it the equivalent of about 10 hp and considerably more in 5th and 6th but that is counteracted by the extra drag of the RS's width and aero.
#420
Instructor
Thread Starter
The 50 kg quoted weight difference makes the R equivalent to a 991 RS with 518 hp. Porsche quotes the lightest possible spec, so an RS with steel discs and Clubsport package (does anyone know their weights?) would equate to at least a 30 hp difference. However the fractionally lower first 4 ratios of the RS give it the equivalent of about 10 hp and considerably more in 5th and 6th but that is counteracted by the extra drag of the RS's width and aero.
But since most of us never drive with a stopwatch, most relevant difference is in the spirit of the cars. On public roads, the RS is a warrior without a war. That warrior belongs on the battlefield of the racetrack. By contrast, the R is a thoroughbred born to run on the road.
Ok, I'll stop writing now - just going a little bananas waiting for the snow to clear so I can be driving the 911R again.