OK my question is: My right calf is bigger than my left because of 2 years of skateboarding. pushing the ground with my right calf. So if I do left foot calf raises with no weight whenever I have free time say 5 sets of 50 reps twice a day every other day will that increase my calf's size?

I actually got my left calf sore by doing 4 sets of 40 reps yesterday (lactic acid buildup)

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Use the SHIP principle when training

First of all, when doing calves, you absolutely need to all exercises unilaterally for now. I wouldn't neglect the right calf though. To build up mass quickly, I wouldn't recommend training calves every other day. Instead, try 2 times per week, one session using high volume and the other low volume.

Try the following calf workout (written by Ian King):

"1) Single leg bodyweight standing calf raise to failure using body weight, done at a 321 tempo

No rest, then:

2) Same leg, single leg bodyweight calf raise to failure with your torso bent forward, at 321

No rest, then:

3) Same leg, single leg calf raise on incline leg press machine at 321

No rest, then:

4) Same leg, single leg calf raise on seated calf raise machine at 321

No rest, then:

5) Same leg, single leg toe ups (dorsi flexion�you can do this on the lying leg curl machine by putting your toes under the bottom roller pad and raising the foot toward your body) to failure at 311

No rest, then:

6) Same leg, single leg hopping for between 60-120 reps, without any heel contact on ground (height of hop is not that important for now� just get the volume in�the more the better)

No rest, then:

7) Same leg, single leg balance for 30 seconds to 1 minute (if you find it to be easy, close your eyes)"

I would recommend doing this once per week for the left calf, then doing a low volume work unilaterally for both calves on another day. I do not want you to neglect the right calf altogether.

I hope this helps.