Попался вот такой мод: QWW Fully Modified Zenoah Engines 5.94 HP Peak!

[AlexSr]

Full Mod 27.2cc Heli Engine Specs
1. Machined crank case to accept 2mm stuffed stroker crank
2. Machine combustion chamber for 2mm stroker
3. Reshape piston
4. Lighten the piston
5.  Relieve the piston to prevent seizing
6.  Modify the intake port for better flow
7.  Adjust intake timing to our specs
8.  Resurface all ports
9.  Modify transfer ports for better flow
10. Enlarge and reshape exhaust port
11.Adjust the exhaust timing to our specs
12. Install all new gaskets and c-clips when engine is assembled

Engine Includes Walbro 813 carburetor & Magneto

Люди да же приводят график на свой двиг:


По описанию - так прям "мега-супер-пупер"... Блин, почти ШЕСТЬ    лошадок  Правда двиг то 27сс. А вот веса его - не нашол.