mohon ijin dan mohon maap para suhu, sehubungan belum ada yg menjawab, saya coba share pengalaman dan mohon dikoreksi jika salah........
sebelumnya kita lihat dulu spek engine ini.....
pecifications:
Stock Number: DLEG0020
Displacement: 20 cc (1.22 cu in)
Bore: 1.3 in (32 mm)
Stroke: 1.0 in (25 mm)
Weight: 28.9 oz (820 g)
RPM Range: 1,750-9,000
Output: 2.5 hp @ 9,000 rpm
Requires: unleaded gasoline, 2-cycle oil, ignition battery & propeller
Includes: electronic ignition, muffler, spark plug, gasket, bolts, throttle arm extension & manual
Suggested Propellers: 14x10, 15x8, 16x6, 16x8, 17x6
Suggested Break-in Prop: n/a

jika dibandingkan dengan OS engine setara 1.22 cu in (engine 120)
SPECIFICATIONS:
Stock Number: OSMG0650
Displacement: 1.20 cu in (20 cc)
Bore: 1.197 in (30.4 mm)
Stroke: 1.083 in (27.5 mm)
Practical rpm: 1,800-9,500
Output: 3.1 hp @ 9,000 rpm
Weight: 21 oz (650 g)
Includes: #8 glow plug, 70D dual-needle carburetor, E-5020 Power Box muffler w/two adapters
Recommended Props: 14x10 APC, 15x6 APC

secara horsepower, engine DLE ini (2.5 HP) ....... lebih rendah dari engine methanol 2 stroke......120AX (3.1 HP) di 9000rpm
jadi, lebih ke setaraan dengan engine 95 AX 2.9HP di 15000rpm