List of Engines

Stock engine stats, if you want to put your custom high compression boosted r6 pumping out 150 hp, make another table stuttgart

Single Cylinder Engines

Make	Model	Year	Displacement [cc]	Peak Torque	Peak Power	Weight	Power to Weight Ratio	School(s)	Notes
Honda	CRF450X		449.7	33.63 lb-ft	53.03 HP	65lbs	0.82 HP/lb	Worcester Polytechnic Institute	WiSECO high compression piston
Yamaha	WR450		449	31.4 lb-ft	46.4 HP	~62lbs	~0.75 HP/lb
	YZF450								ATV motor
KTM	450 SX-F	2016-20	449	33.7 lb-ft	53.2 HP	59lbs	0.902 HP/lb		Internal Dry-sump system 2020 Dyno Graph
	690 Gen III	2008-2011	653.7	48 lb-ft	61.6 HP			Texas Tech
Rotax	DS450		449					Polytechnique Montreal	ATV motor
Suzuki	LTR450							Air Force

Two Cylinder Engines

Make	Model	Year	Displacement [cc]	Peak Torque	Peak Power	Weight	Power to Weight Ratio	School(s)	Notes
Aprilia	450 SXV							York College
Briggs and Stratton	Vanguard V-Twin							Tennessee Tech
Honda	CBR500RR		474					Bradley University
Yamaha	YZF-R3		321	29.6 Nm	31 kW	40 kg	0.775 kW/kg	U of North Dakota, U of Texas - Arlington	Weight includes some factory hoses.
Yamaha	Genesis 80FI		499					U of Michigan - Dearborn	Parallel twin, used for snowmobiles

Three Cylinder Engines

Make	Model	Year	Displacement [cc]	Peak Torque	Peak Power	Weight	Power to Weight Ratio	School(s)	Notes
Triumph	675 Daytona							San Jose State, Rutgers

Four Cylinder Engines

Make	Model	Year	Displacement [cc]	Peak Torque	Peak Power	Weight	Power to Weight Ratio	School(s)	Notes
Honda	CBR 600F4i	2001-2006	599			~135 lbs
		pre 2007	599						not sure if anyone runs an RR this old, but hey fair game
	CBR 600RR	2007-2008		49 lb-ft	118 hp	137 lbs	0.86 hp/lb		weight includes oil
		2009-2012
		2013-2017
Kawasaki	Ninja ZX6R 636	2012-2018						U of Nebraska - Lincoln	University nebraska - lincoln
Suzuki	GSXR
Yamaha	R6

Greater than Four Cylinder Engines

i think these are all custom

Make	Model	Year	Displacement [cc]	Peak Torque	Peak Power	Weight	Power to Weight Ratio	School(s)	Notes

Engine