Thunder Tiger Engines for Racing AMA 424, Club 40 or Sport Flying

The PRO engine series feature aerospace-technology ball bearings for supporting the crankshaft at high RPM while the Schnuerle-boost combustion porting delivers greater power and fuel economy. The Pro Series engines are equipped with twin ball bearings, twin needles and ABN-type piston and cylinder for years of trouble-free performance.

Side exhaust
ABN construction : Aluminum piston with Nickel-plated brass cylinder liner
Hypereutectic machined Al-Si ringed piston
High-strength connecting rod with bushings pre-installed
One-piece crankcase with squared-off cooling fins
Dual ball bearing-supported crankshaft
Vertical fins heat sink head for optimum air cooling
3- Chamber muffler included
2 Needle valves carburetor
Swept back needle valve for added safety adjustment
State of the art CNC machined components
Redline R2 glow plug included

TT-40	Thunder Tiger 40 Specification Displacement(c.c. / cu.in.) 6.52 c.c. / .398 cu.in.  Bore(mm / in.) 20.9 mm / 0.823 in.  Stroke(mm / in.) 19.0 mm / 0.748 in.  Practical R.P.M.(R.P.M.) 2,000 ~ 17,000 rpm  Output(BHP/RPM) 1.30 BHP / 16,000 RPM  Weight(g/oz) 454.5 g / 16.03 oz
TT-46	Thunder Tiger 46 Specification Displacement(c.c. / cu.in.) 7.47 c.c. / .456 cu.in.  Bore(mm / in.) 21.8 mm / 0.858 in.  Stroke(mm / in.) 20.0 mm / 0.787 in.  Practical R.P.M.(R.P.M.) 2,000 ~ 17,000 rpm  Output(BHP/RPM) 1.60 BHP / 16,000 RPM  Weight(g/oz) 448.5 g / 15.82 oz
	QKE-07B Merlin 2016 Globee Style flat coil for TT Pro 40/46 Engines. Standard 1/4" thread. These work great in those motors

 

Racing Propellers

APC 9x 6 thtough 10 x 6

APC 10.5 x 4.5

We have a complete selection of racing APC Props and the original
APC 9x6.approved for AMA 424 in stock

APC Notice