RE: 4stroke on 1/10 or 1/8th truck or car
They used to make small 4-stroke engine's specificallly for 1/10 sized cars and trucks. It was a while back maybe 4 or 5 years ago, cant remember who made them though. But they did make them cause I was considering doing the same with my T-Maxx. But one hting you got to remember a 4 stroke thats the size of .30 will have the performace of a .15 sized 2 stroke. Thats the only down side to them , the performance for there size really lags behind that of a 2 stroke.