maxpowers

Does anyone knows the top speed in each gear with the manual?

I've been trying to search for it, but can't seem it to find it.

Car25

Its easy to figure out without getting to the top speed, at least until the speed is limited by drag in the upper gear (Porsche says the max speed is obtained in 6th). The ratio of RPM to speed is linear in each gear. So you could go half of the red line RPM and look at the speed then double it to get the top speed (or 1/3 and triple it etc..)

todd92

Too high.

squid42

Here is what I saved for carrera and carrera S, manual and PDK.

I am not offhand sure where I got the redline, if it's not correct let me know.

carrera manual
outside diameter: 682mm (26.9 inch)
outside circumference: 2142mm
gear 1 rpm 1000 travel per second: 2.7 m/s 9.6 km/h 6.0 mph
gear 2 rpm 1000 travel per second: 4.5 m/s 16.3 km/h 10.2 mph
gear 3 rpm 1000 travel per second: 6.7 m/s 24.1 km/h 15.1 mph
gear 4 rpm 1000 travel per second: 8.0 m/s 28.8 km/h 18.0 mph
gear 5 rpm 1000 travel per second: 9.6 m/s 34.6 km/h 21.6 mph
gear 6 rpm 1000 travel per second: 11.8 m/s 42.5 km/h 26.5 mph
gear 7 rpm 1000 travel per second: 14.6 m/s 52.6 km/h 32.9 mph
gear 1 rpm 7800 travel per second: 20.7 m/s 74.6 km/h 46.6 mph
gear 2 rpm 7800 travel per second: 35.4 m/s 127.3 km/h 79.6 mph
gear 3 rpm 7800 travel per second: 52.2 m/s 188.1 km/h 117.6 mph
gear 4 rpm 7800 travel per second: 62.3 m/s 224.3 km/h 140.2 mph
gear 5 rpm 7800 travel per second: 75.0 m/s 269.9 km/h 168.7 mph
gear 6 rpm 7800 travel per second: 92.0 m/s 331.3 km/h 207.1 mph
gear 7 rpm 7800 travel per second: 114.1 m/s 410.6 km/h 256.6 mph

carrera s manual
outside diameter: 685mm (27.0 inch)
outside circumference: 2151mm
gear 1 rpm 1000 travel per second: 2.7 m/s 9.6 km/h 6.0 mph
gear 2 rpm 1000 travel per second: 4.6 m/s 16.4 km/h 10.2 mph
gear 3 rpm 1000 travel per second: 6.7 m/s 24.2 km/h 15.1 mph
gear 4 rpm 1000 travel per second: 8.0 m/s 28.9 km/h 18.0 mph
gear 5 rpm 1000 travel per second: 9.7 m/s 34.8 km/h 21.7 mph
gear 6 rpm 1000 travel per second: 11.8 m/s 42.7 km/h 26.7 mph
gear 7 rpm 1000 travel per second: 14.7 m/s 52.9 km/h 33.0 mph
gear 1 rpm 7800 travel per second: 20.8 m/s 74.9 km/h 46.8 mph
gear 2 rpm 7800 travel per second: 35.5 m/s 127.8 km/h 79.9 mph
gear 3 rpm 7800 travel per second: 52.5 m/s 188.9 km/h 118.1 mph
gear 4 rpm 7800 travel per second: 62.6 m/s 225.2 km/h 140.8 mph
gear 5 rpm 7800 travel per second: 75.3 m/s 271.1 km/h 169.4 mph
gear 6 rpm 7800 travel per second: 92.4 m/s 332.7 km/h 207.9 mph
gear 7 rpm 7800 travel per second: 114.5 m/s 412.4 km/h 257.7 mph


carrera pdk
outside diameter: 682mm (26.9 inch)
outside circumference: 2142mm
gear 1 rpm 1000 travel per second: 2.7 m/s 9.6 km/h 6.0 mph
gear 2 rpm 1000 travel per second: 4.5 m/s 16.3 km/h 10.2 mph
gear 3 rpm 1000 travel per second: 6.3 m/s 22.7 km/h 14.2 mph
gear 4 rpm 1000 travel per second: 8.0 m/s 28.8 km/h 18.0 mph
gear 5 rpm 1000 travel per second: 10.4 m/s 37.4 km/h 23.4 mph
gear 6 rpm 1000 travel per second: 11.8 m/s 42.5 km/h 26.5 mph
gear 7 rpm 1000 travel per second: 16.7 m/s 60.3 km/h 37.7 mph
gear 1 rpm 7800 travel per second: 20.7 m/s 74.6 km/h 46.6 mph
gear 2 rpm 7800 travel per second: 35.4 m/s 127.3 km/h 79.6 mph
gear 3 rpm 7800 travel per second: 49.1 m/s 176.7 km/h 110.4 mph
gear 4 rpm 7800 travel per second: 62.3 m/s 224.3 km/h 140.2 mph
gear 5 rpm 7800 travel per second: 81.0 m/s 291.5 km/h 182.2 mph
gear 6 rpm 7800 travel per second: 92.0 m/s 331.3 km/h 207.1 mph
gear 7 rpm 7800 travel per second: 130.6 m/s 470.2 km/h 293.9 mph

carrera s pdk
outside diameter: 685mm (27.0 inch)
outside circumference: 2151mm
gear 1 rpm 1000 travel per second: 2.7 m/s 9.6 km/h 6.0 mph
gear 2 rpm 1000 travel per second: 4.6 m/s 16.4 km/h 10.2 mph
gear 3 rpm 1000 travel per second: 6.3 m/s 22.7 km/h 14.2 mph
gear 4 rpm 1000 travel per second: 8.0 m/s 28.9 km/h 18.0 mph
gear 5 rpm 1000 travel per second: 10.4 m/s 37.5 km/h 23.5 mph
gear 6 rpm 1000 travel per second: 11.8 m/s 42.7 km/h 26.7 mph
gear 7 rpm 1000 travel per second: 16.8 m/s 60.5 km/h 37.8 mph
gear 1 rpm 7800 travel per second: 20.8 m/s 74.9 km/h 46.8 mph
gear 2 rpm 7800 travel per second: 35.5 m/s 127.8 km/h 79.9 mph
gear 3 rpm 7800 travel per second: 49.3 m/s 177.4 km/h 110.9 mph
gear 4 rpm 7800 travel per second: 62.6 m/s 225.2 km/h 140.8 mph
gear 5 rpm 7800 travel per second: 81.3 m/s 292.8 km/h 183.0 mph
gear 6 rpm 7800 travel per second: 92.4 m/s 332.7 km/h 207.9 mph
gear 7 rpm 7800 travel per second: 131.2 m/s 472.2 km/h 295.1 mph

Dodaleca

I tried to calculate the top speed of two vehicles (991.1 X51 and 992.2 3.0 Turbo S) where I balance off engine power versus aerodynamic drag and rolling losses. When the acceleration is 0 m/s in the graph there is no more power to accelerate any faster so that is the theoretical maximum speed in that gear.


https://rennlist.com/forums/991/8932...l#post12592622


My top speed in 6th gear appears close to Porsche's published numbers (within 1 km/hr for both) but the low maximum speed in 7th gear for the 991.1 X51 seems suspect.

Hammer911

To my understanding, in 991 cars, the 7th gear is true overdrive so top speed is achieved in 6, only exception is the GT3.