Not true. The final drive ratio is really the determining factor. This is the ring and pinion gear ratio in the differential section of the transaxle. 3.89 revolutions of the pinion to rotate the ring gear 1 revolution, which rotates the axles, is significantly lower than 3.52 to 1. doesn't sound like much but it is. I won't go into the math here but it is easy to look up. So while the first three gear ratios are the same the 2.5 output is lower. where the last 2 gears in the 2.7 are much taller.
which can be modified also by changing the sidewall height of your tires ...
1998 Porsche Boxster
Hybrid Mode
