Selva Dorado 20 vs Tohatsu M18E2 (2-Stroke)
Dorado 20
M18E2 (2-Stroke)
| Spec | Selva Dorado 20 | Tohatsu M18E2 (2-Stroke) |
|---|---|---|
| Power & Performance | ||
| Horsepower | 20 HP | 18 HP |
| Displacement | 498 cc ← | 294 cc |
| Configuration | 2 Cyl / Inline | 2 Cyl / Inline |
| Weights & Dimensions | ||
| Dry Weight | 74 kg (163 lbs) | 41 kg (90 lbs) ← |
| Mechanical & Electrical | ||
| Gear Ratio | 1.86 | 1.85:1 |
| Alternator | 145 W ← | 80 W |
| Fuel Delivery | Carbureted | Carbureted |
| Maintenance | ||
| Spark Plug | NGK DPR6EA-9 | NGK B7HS-10 |
| Engine Oil | Selva Marine 4-Stroke | TC-W3 (50:1) |
Technical Comparison Analysis
Power & Displacement
Comparing the Selva Dorado 20 and Tohatsu M18E2 (2-Stroke) shows a displacement difference of 204cc. The Selva features a larger 498cc block, which typically provides superior low-end torque and better hole-shot performance when pushing heavy loads or reaching planning speeds.
Weight & Rigging
In terms of transom weight, the Tohatsu is the lighter option at 41kg, offering a weight saving of 33kg over its competitor. This weight reduction is critical for smaller hulls or boats with limited transom capacity where every kilogram affects the center of gravity and drainage efficiency.
Electrical & Features
For boats equipped with modern electronics, sonar, and shallow-water anchors, the Selva offers the best charging performance with a 145W alternator. Choosing the right power-to-weight profile between these two 4-stroke engines depends heavily on your specific boat's displacement and daily power requirements.