Two-stroke versus four-stroke engine comparison
| Rotax 503 DCDE two stroke
$5147 with electric start (uflyit) |
HKS 700E four stroke
$5785 Tom Olenik |
| 50 hp | 60 hp |
| 3.25 gal/hour @ 5200-5400 rpm for 65 mph giving 20 mpg (per Brian) or 4.5 gal/hour @ 5600-5800 (per Dave) at (guessing) 75 mph giving 16 mpg |
2.38 gal/hour @ 4750 rpm* giving, at a guess, 31 mpg @ 75 mph |
| 160 miles range on 8 gal taking 2.46 hours for Brian or 133 miles range on 8 gal taking 1.7 hours for Dave |
252 miles range on 8 gal taking 3.36 hours |
| 250 mile trip would take 4.8 hours for Brian and 4.3 hours for Dave including a 1-hour fuel stop. Cost for Brian is $25 and for Dave is $30. | 250 mile trip would take 3.36 hours costing 8 gal * $2 = $16 |
| 98 lb. per Dale | 121 lb. Engine weight of dry engine with all electrical equipment, electric starter, carburetors and gearbox* |
* Tom Olenik http://www.buyitsellitfixit.com/