Pratt and Whitney R-4360 Wasp Major Motor

Okay, to everyone who thinks all the motorcycle engines are complicated...
hows this?
28 cylinders... and a supercharger and in later versions 2 turbos in addition to the blower!

Thanx to Scott for the pix, he understands the weird obsession with radials...

check out his blog...




also, here is video of a cutaway of one of these engines...

Engine displacement was 4,362.50 in³ (71.5 L), hence the model designation. Initial models developed 3,000 hp (2240 kW), but the final models delivered 4,300 hp (3200 kW) using two large turbochargers in addition to the supercharger.