Quote Originally Posted by deephouse View Post
One question guys. It's more technical one. And mabe don't belong here. Why do all Rally2 drivers shift they gears immediately and don't rev up to the full. Like they immediately had in 4th and 5th gear. Isn't that make car slower?
Rally2 cars have smaller turbo restrictor compared to the Rally1 cars. Since both have the same turbo boost the location of the peak power on the RPM scale is largely determined by the restrictor size. Simply said there is a point where more RPM can't bring more power because there is not enough air for that. While the engine power remains close to constant for the rest of the RPM band (again limited by the restrictor), the frictional losses grow exponentially with the RPM, i.e. the power on wheels is decreasing with the RPM. Hence why the extra RPM range in a Rally2 car (up to 7500) is basically used only for the top speed on the top gear.