[WolfpackS2k]

Originally Posted by nikitopo

Because my BRZ has from factory a 3.727 fd diff and not the 4.1 or the newer 4.3. So, I was questioning for a long time if it is worth to change it. I even asked one of the designers of our cars and the reply was the following:

"On your shorter final drive question, it will only drop the whole range of gears, so your top gear will be shorter, so the fuel consumption will decrease. It will only feel livelier but not in all gears since we are just dropping the shift points lower...but not increasing the power to the output. So it's a choice. I would leave it alone if I was you since it really doesn't make the car any faster in all places. Just in some places, and in other places, slower."

Then I started studying it with excel formulas and indeed he was right. If you tell me that they wanted to handicap the Cayman and they didn't provide the bigger engine or the more advanced suspension (if space was sufficient), then yes I agree. But not on the gears or final drive ratios ...

I don't even know what else to say. I went looking in another thread where I posted the gear ratios of the BRZ Cayman and 911 to reference it here, but you quoted that exact post of mine, so I'm just gonna stop.