3s is really pushing it with the Sidewinder and a 5700kv motor in a 4wd truck.

I doubt the Hobbywing 60a would do much better.

To run that motor on 3s reliably you would need something that can handle higher cell counts and more current like a MMP or Hobbywing sc8. You can find sc8's for about 65-70 bucks on ebay.

A lower KV motor might help too. It will draw less current than a 5700 and probably not go into thermal protection. I have a sv3 with a Velineon 3500kv in my son's Rustler and it runs 3s just fine without any heat issues.