You're welcome. The Traxxas 2.5 and 3.3 are decent engines too, but tend to be a little finickier. The 3.3 has been known to split connecting rods if run too cold and rich during break-in (which is how Traxxas has outlined their engines be broken in), so that can be problematic - especially for novices. They are decent engines though. Another "cheap" option would be a Dynamite .19T. These are made by SH in Taiwan and are known to be decent runners. These engines I listed here retail for around $90-130 though, which is why I suggested the Nova right off the bat for $150. A little more money for legendary Nova quality and better/more power.