I have a new in box Evolution Trainer Power System Engine...The Evolution engine...I can not determine if it is rated .40 or .45....The box is black and the only description on the box to identify which engine is EVOE 100.....The enclosed paper work shows it as a .45 but there is no identifying marks or numbers on the engine...All advertisements for this engine shows three models.....40 .45 .60 .....with three identifying codes none of which are the EVOE 100 on my box....It must be an early design and they have changed the ID codes...Anyone out there that knows which engine I have .....please let me know...Richard