What would be the lap time of a 918 at Spa?
What would be the lap time of a 918 at Spa?
06-01-2020, 04:05 AM
#2
Rennlist Member
Fair question but I don't think you'll ever get your answer with the number of people who (i) actually know what they're doing behind the wheel and (ii) have a 918 rightly setup for testing at Spa
Pro over pro at Nordschleife, the 918 was ~10s behind the GT2RS MR and about the same as the 991.2 GT3RS.
Spa is a massive power track and rewards the turbos and hybrid boost in the GT2RS the 918. These are the datapoints I can find:
2:31 | 991 GT2RS MR
2:36 | 991.2 GT3RS (Am)
So there you have it, I see these as the bookends to your estimate.
But if anyone has a 918 for me to test, I'd be happy to print that datapoint out of public interest!
Pro over pro at Nordschleife, the 918 was ~10s behind the GT2RS MR and about the same as the 991.2 GT3RS.
Spa is a massive power track and rewards the turbos and hybrid boost in the GT2RS the 918. These are the datapoints I can find:
2:31 | 991 GT2RS MR
2:36 | 991.2 GT3RS (Am)
So there you have it, I see these as the bookends to your estimate.
But if anyone has a 918 for me to test, I'd be happy to print that datapoint out of public interest!
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Der-Schwabe (06-01-2020)
06-01-2020, 12:42 PM
#3
Drifting
Another data point for you, when the GT2RS was going for the lap record at the Ring, the Porsche team also brought out a 918 Spyder with them to test out the new compound Cup 2 tires. Remember, the 918 Spyder Ring lap time was done in the old Ring configuration before the tarmac repave. Also, the 918 was running on the N0 spec Cup 2 tires at the time. Tire technology has come a long way since then.
So the 918 Spyder was strapped with the non-R N2 spec Cup 2 tires and it lapped the Ring consecutively in the 6:52s (back to back to back).
The GT2RS record lap was achieved on the Cup 2 R tire in the 6:47s.
So the 918 Spyder was strapped with the non-R N2 spec Cup 2 tires and it lapped the Ring consecutively in the 6:52s (back to back to back).
The GT2RS record lap was achieved on the Cup 2 R tire in the 6:47s.
The following 2 users liked this post by unotaz:
Der-Schwabe (06-01-2020),
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06-05-2020, 08:57 PM
#4
Race Car
^^^The tire factor is huge.
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Der-Schwabe (06-06-2020)
06-06-2020, 09:28 PM
#5
Can someone please explain how a rear wheel drive GT2 RS can lap the Ring faster than a more powerful, all wheel drive 918?
The only explanation I can think of is the weight difference between the cars. This and the electric motors really help the 918 on slower circuits, unlike the Ring that rewards big horsepower cars with fast sweeping corners and long straight sections. It's the NA motor that's pushing the vmax speeds up, not the electric motors. 918 NA motor pushing 605 hp and 2RS is pushing 700hp. OR is it the downforce the cars are making?
The only explanation I can think of is the weight difference between the cars. This and the electric motors really help the 918 on slower circuits, unlike the Ring that rewards big horsepower cars with fast sweeping corners and long straight sections. It's the NA motor that's pushing the vmax speeds up, not the electric motors. 918 NA motor pushing 605 hp and 2RS is pushing 700hp. OR is it the downforce the cars are making?
06-07-2020, 12:09 AM
#6
Racer
Definitely the weight and if I recall correctly the 918 battery doesn't last the whole lap so for parts of the lap it's really dead weight
06-07-2020, 12:47 PM
#7
Drifting
It's weight and downforce. Carrying all that extra weight around a long track do take its toll on braking and grip over the lap.
Also, the 918 battery lasts more than the single lap after further optimization from Porsche. When Porsche attempted the record lap, they were still working on the battery software calibration.
But here is the real kicker. The GT2RS set the record lap on the Cup 2 R tires at 6:47. 918 did 6:52 with the N2 Cup 2 tires (3 laps back to back to back). I wonder how much faster can the 918 go with the proper Cup 2 R tires?
Also, the 918 battery lasts more than the single lap after further optimization from Porsche. When Porsche attempted the record lap, they were still working on the battery software calibration.
But here is the real kicker. The GT2RS set the record lap on the Cup 2 R tires at 6:47. 918 did 6:52 with the N2 Cup 2 tires (3 laps back to back to back). I wonder how much faster can the 918 go with the proper Cup 2 R tires?
Can someone please explain how a rear wheel drive GT2 RS can lap the Ring faster than a more powerful, all wheel drive 918?
The only explanation I can think of is the weight difference between the cars. This and the electric motors really help the 918 on slower circuits, unlike the Ring that rewards big horsepower cars with fast sweeping corners and long straight sections. It's the NA motor that's pushing the vmax speeds up, not the electric motors. 918 NA motor pushing 605 hp and 2RS is pushing 700hp. OR is it the downforce the cars are making?
The only explanation I can think of is the weight difference between the cars. This and the electric motors really help the 918 on slower circuits, unlike the Ring that rewards big horsepower cars with fast sweeping corners and long straight sections. It's the NA motor that's pushing the vmax speeds up, not the electric motors. 918 NA motor pushing 605 hp and 2RS is pushing 700hp. OR is it the downforce the cars are making?
The following 2 users liked this post by unotaz:
Der-Schwabe (06-07-2020),
pride355 (08-07-2022)