for stock racing sure but for a 1/8 scale all you need is really at least 30/40 c if you cant clear a tripple with a "30c" rated lipo than theres something else wrong lol.
what im saying is a 4c lipo, with a 30c rating for a 1/8 scale has plently of punch but that does depend on what kind of "kv" motor you have actually.
a 2200 kv motor needs no more than a 4c /30c lipo omg.
oh yea its hard to know really on what the punch ratings on lipos really are anyways.