Engineering data shows Porsche restricts Cayman S...
performance in favor of 911 Carrera. The following data (from Porsche Product information on the Cayman S) shows that a significant gearing advantage is given to the 911 Carrera, so that it can maintain it's acceleration time advantage over the Cayman S.
Although both the Cayman S and the 911 Carrera have the same standard rear tire size (265 40 18), final drive ratio (3.88), and maximum engine speed (7300 rpm), the 911 Carrera has shorter gear ratios in all gears; in the critical 1st and 2nd gear (critical to 0-60 times) the advantage is nearly 20%, meaning engine torque transfered to the pavement for acceleration is being multiplied by nearly 20% more in the 911 Carrera, vs. the Cayman S. I'd venture to say that a Cayman S with a 911 Carrera transaxle would make quite a formidable ride.
Gear/Cayman S/Cayman S total/911 Carrera/911 Carrera total/% of Cayman S
1/ 3.31/ 12.84/ 3.91/ 15.17/ -18.1
2/ 1.95/ 7.57/ 2.32/ 9.00/ -19.0
3/ 1.41/ 5.47/ 1.61/ 6.25/ -14.2
4/ 1.13/ 4.38/ 1.28/ 4.97/ -13.3
5/ 0.97/ 3.76/ 1.08/ 4.19/ -11.3
6/ 0.82/ 3.18/ 0.88/ 3.41/ -7.3
Final Drive/ 3.88/ 3.88
Sorry, I can't get the table to format properly
The real hero in the story is the Boxster S, which is saddled with even taller overall ratios than the Cayman S in all gears.
Although both the Cayman S and the 911 Carrera have the same standard rear tire size (265 40 18), final drive ratio (3.88), and maximum engine speed (7300 rpm), the 911 Carrera has shorter gear ratios in all gears; in the critical 1st and 2nd gear (critical to 0-60 times) the advantage is nearly 20%, meaning engine torque transfered to the pavement for acceleration is being multiplied by nearly 20% more in the 911 Carrera, vs. the Cayman S. I'd venture to say that a Cayman S with a 911 Carrera transaxle would make quite a formidable ride.
Gear/Cayman S/Cayman S total/911 Carrera/911 Carrera total/% of Cayman S
1/ 3.31/ 12.84/ 3.91/ 15.17/ -18.1
2/ 1.95/ 7.57/ 2.32/ 9.00/ -19.0
3/ 1.41/ 5.47/ 1.61/ 6.25/ -14.2
4/ 1.13/ 4.38/ 1.28/ 4.97/ -13.3
5/ 0.97/ 3.76/ 1.08/ 4.19/ -11.3
6/ 0.82/ 3.18/ 0.88/ 3.41/ -7.3
Final Drive/ 3.88/ 3.88
Sorry, I can't get the table to format properly
The real hero in the story is the Boxster S, which is saddled with even taller overall ratios than the Cayman S in all gears.