Originally Posted by His Dudiness
I was just wondering if 17'' wheels on a DCT equipped car would lower that 2600 rpm even more?
Also, can I install 17'' tires but with slightly higher profile - thus increasing overall wheel diameter and lowering rpm's even more on highway?
e.g. instead of standard 215/50R17 put 215/55R17 or 215/60R17 or even 215/65R17
Yes. And it should result in better highway mileage and worse city mileage. But considering these transmissions seem to be sensitive when stock, I'd hardly recommend anyone put much more loading on the transmission... Also, you have to be careful with rubbing when turning, hitting bumps, etc.
Most places don't recommend anything more than a 3% variance than stock.
2012 FF Ti HB Kona Blue, Built 5/24/2011, 401A + Ti Handling Package, Parking Technology Package, Winter Package, Moonroof, and MFT w/NAV at v3.6 100k miles and counting...