I find out that the first 50% of the acceleration in the game is achieved with 80% depth of the throttle pedal and the other 50% of acceleration is the remaining 20% ​​of the throttle pedal.

So i feel the throttle level is not even

I am using G27, crounsmax plus, crounsmax usb hubs, the lastest firmware

Can you help me to fix it ? thanks a lots ^^