What's the difference between a turbo & standard plug engine. Can you put a turbo plug in the standard plug engine. I just started racing & am looking at the rb concepts line of engines . For my x1 crt i'm leaning towards the s7 l2g & for my sons x1 buggy the s5 l2g . I am in the low to mid 2 hundred dollar range & i see a lot of the ws7 l2g at the track. Since we are just learning we don't need the fastest engine just good smooth power & reliable. Any input would be great, Thanks