Ferrari 458 Italia vs Porsche 911 Turbo PDK with "overboost" enabled and race without it enabled

27 Jun 2013 12:3400

https://www.facebook.com/GTBOARD Key features include a digital and analogue stopwatch on the dashboard, a performance display, a personal memory function in the Porsche Communication Management (PCM), the SPORT button and -- in combination with PDK -- the SPORT PLUS button, and an additional display on the steering wheel which informs the driver if the SPORT buttons and Launch Control have been activated. The 911 Turbo models additionally offer the 'overboost' function. This is how it works:

When 'Sport' mode is selected, the engine management system creates a much more aggressive response to pedal inputs. To do this, it implements an alternative throttle map which relates the pedal position in the footwell to a wider angle of opening in the throttle body. In higher gears, it uses a hard rev-limiter to protect the engine under power.

In the 911 Turbo models, under full acceleration, the maximum boost pressure in the lower and medium speed ranges is now temporarily increased by approximately 0.2 bar. As a result, engine torque is boosted by 50 Nm to a maximum of 700 Nm for a limited period. (The 911 Turbo S models are configured to operate with a higher boost pressure level, which means that their maximum torque is always 700 Nm.)

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