2015 4C Launch Edition
Is you sped it up that would mean more muscle to turn at slow speeds and it already requires a bit of muscle to turn it at very slow speeds like in parking. That may explain why ALFA settled on that ratio.We are discussing potential improvements...
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4C has fixed ratio of 15.7:1 and has 2.7 turns of wheel for lock-lock. For each turn, rack moves 44mm.
Compared to 991 GT3RS it seems on a 4C you need much more of counter steer for corrections. At the same amount of oversteer, the GT3 required minor steering wheel input compared to 4C, yet it felt more precise going straight. One thing that I remembered the most about this car driving it on a track last time. GT3 RS has variable ratio steering rack, 4C has fixed ratio.
BTW, Giulia QV has a steering rack ratio of 11.8:1, one of the quickest.