lipo ratings

[oldboy]

Hi Guys And Gals

Even after a year and a half of racing i am still struggling to get my head around this, i am looking for some new lipo's for myself and my son without breaking the bank have looked at some of the cheaper batterys and notice that the C rating is lower normally about 30C. we both race touring cars with 13.5t motors mainly indoor but sometimes outdoor. could someone advise me what sort of C rating i should be using (or could get away with) also if anyone has any idea's which lipos are decent at a decent price that would be good (7.4v Stick brca legal would be good but possibly not vital)

Thanks very much Bob