just wondering, what sort of compression should i be chasing my motorbikes 12.5 to one and ive ran it one normal fuel for like 5 min( wen i ran out in the bush) and it didnt make any differant noises or change it performance is this the same for a car or is it differant my dad said that 11 to 1 would be the max i could run does any one know for sure what compression i should be looking for