RCIGN1: I agree with you on the data. I noticed the mix was 16-1... that would put a lot of oil in there for the rod bearing...ect. But more oil more power. I have a Thunder Tiger pro .46 and it is one powerfull engine. Gave it to my Grandson and he loves it. I never ran the bigger 1.20 Thunder Tiger, but I suppose it may be about the same quality as the China made Super Tiger. Best Regards Capt,n