19" Tires

[Raynman]

Given all this I wonder why Mitsubishi elected to go with larger rims on the new Evo given that it is the performance marque for compact sedans.

R

Most likely because of the more massive brakes that they plan to fit on the next gen. More power means, you need more stopping power, which means you need beefier and larger brake discs, which means you need larger diameter wheels.

 

[Rainman]

Most likely because of the more massive brakes that they plan to fit on the next gen. More power means, you need more stopping power, which means you need beefier and larger brake discs, which means you need larger diameter wheels.

True enough, true enough. But that ALSO adds to the rotational inertia since the rotors will be bigger and the bigger calipers add to the unsprung weight. It seems like it is such a balancing act to get the most out of these kind of modifications.

R

 

[Speed6 Guy]

I hear you on the looks 4DRHTRD caluse most of us aren't racing around all the time to make the difference in performance significatnt. This months edition of Sport Compact Car has some good info on this concept. When you keep the OD the same, but have larger rims you are replacing the weight of the rubber with the weight of the metal in the rim and doing so at a distance from the centre of the rim. Since a given weight has an effect that increases exponentially as the distance from the centre of the rim increases linearly you have to have a rim material that weighs less than the rubber it replaces which is a difficult proposition. Then when you add in the idea of rotational inertia larger rims are even less favourable.

Given all this I wonder why Mitsubishi elected to go with larger rims on the new Evo given that it is the performance marque for compact sedans.

R

Thank You.