[Thecatch83]

After searching for some info regarding the yamaha 2UR-GSE and its exploits, the IS-F can actually hit 205 mph up another 35 from its limited 170 mph which incidentally is far and away best in its class! I wonder what the rpms are at 170 in 8th gear?

 

[Thecatch83]

My friend actually read an article in Japan (he's stationed in atsugi) about the engineering of the IS F. I think an engine designed by Yamaha and the Skunk guys with the venerable 2jz Supra to their credit is more than capable of high end top speed numbers. I mean if a Porsche carrera S with a 3.8 liter 6 can do 190...it makes sense that a 5.0 yamaha racing motor can hit 200 mph with the right tune!