yeah its a strange engine alright. it came in my hyper 8 rtr i dont plan on changing it until it kicks the bucket though as i just use it for bashing about.

as for you changing enigne when you race would you not rathe rrace in sportsman class or wateva with .21 rather than outlaw with .26 or .28 or what way does your track work?
i no you cant race any enigne over .21 unless in outlaw.