Armilite
Well-Known Member
Long Overlooked Rotax Engine the 462UL was rated 38kw = 50.9hp@6500rpm with a Single Carb! 470 Sleds Sell for $100 to $400.
https://www.rotax.com/en/100-years/historical-vehicles-engines/detail/type-462.html
Same Rotary Valve Engine as a Skidoo 470 which is turned to 7750rpm Stock in a Sled. I believe they were rated 79hp@7750rpm in a Sled with Dual Carbs.
1993-1999 are Provision 8 Cases.
(69.5mm x 61mm) 463.0cc/7cc= 66.1hp@6500rpm with a Good Tuned Pipe and Proper SIzed Carb!
Specifications (462)[edit]
Data from ROTAX Repair Manual for engine type 462 - 532 - 582 UL
General characteristics
https://www.rotax-owner.com/pdf/HISTORICAL_RepairManual(1994)462-532-582UL.pdf
https://www.rotax.com/en/100-years/historical-vehicles-engines/detail/type-462.html
Same Rotary Valve Engine as a Skidoo 470 which is turned to 7750rpm Stock in a Sled. I believe they were rated 79hp@7750rpm in a Sled with Dual Carbs.
1993-1999 are Provision 8 Cases.
(69.5mm x 61mm) 463.0cc/7cc= 66.1hp@6500rpm with a Good Tuned Pipe and Proper SIzed Carb!
Specifications (462)[edit]
Data from ROTAX Repair Manual for engine type 462 - 532 - 582 UL
General characteristics
- Type: Two-cycle, two-cylinder rotary valve engine, oil-in-fuel lubrication, liquid-cooled, with integrated water pump
- Bore: 69.5 mm (2.74 in)
- Stroke: 61 mm (2.401 in)
- Displacement: 463.0 cc
- Dry weight: 32 kg (70.5 lb) (dry, no exhaust system)
- Carb: 1 x BING 36mm
- Valvetrain: Rotary valve
- Oil system: oil-in-fuel lubrication
- Cooling system: liquid
- Reduction gear: 2.0 / 2.24 / 2.58 / 3.0
- Power output: 38 kW (51 hp) at 6500 rpm (standard version), 28 kW (38 hp) at 5500 rpm (low performance version)
- Compression ratio: theoretical: 11.5, effective: 6.7
https://www.rotax-owner.com/pdf/HISTORICAL_RepairManual(1994)462-532-582UL.pdf