Originally Posted by
airraptor
Also who ever mentioned the rossi 15 lol it weights 9 ounces as much as a TT Gp 42 with no muffler lol
A Rossi or Novarossi will put out 1/2 hp better than a .40 GP Thunder Tiger too. The weight is often overrated. It is the plane power to weight ratio that makes the difference. A motor that revs to 30,000 or 40,000 rpm needs to be stronger. Some old Nelsons had the cylinder fly completely off. Plain bearing engines are fine. Look at the Small Block Chevy.