ORIGINAL: SC_RCOldie
Definitely want to race with it. I see that the RTR comes with a .27 engine included - that is why I was asking about the .28 sizes. But most all the reviews that I find all show the .21 engines.
Someone had an OFNA setup with starter box that he was offering for $250 that I might get to bash around with and get the feel for the nitro power over the electric and bash around with.
The RTR's are misleading with the over .21 engines. They may perform fine, but nothing larger than .21's are legal for racing. There may be exceptions at local events. The larger engines are not really at all necessary, but they market well. A good .21 is all a driver needs, and they are plenty fast.