The Danish RB drivers has struggled with flame-out this season. The BX and BXR engines has to have a little richer LSN than e.g. Novarossi. As always its not the engine that is the problem - if you ask me. None of the RB drivers would try Novarossi C6TGC plugs, and I think the plugs also could be a major problem. RB released the V3 plugs in february and Special buggy plugs i August... Why? Due to plug problems?
If you're not running Novarossi C6TGC plugs you shold get the newest RB plugs.
Mileage is average.