Mercury Classic 50 (4-Cyl) vs Chrysler 45hp (2-Stroke)
Classic 50 (4-Cyl)
45hp (2-Stroke)
| Spec | Mercury Classic 50 (4-Cyl) | Chrysler 45hp (2-Stroke) |
|---|---|---|
| Power & Performance | ||
| Horsepower | 50 HP | 45 HP |
| Displacement | 721 cc ← | 691 cc |
| Configuration | 4 Cyl / Inline | 2 Cyl / Inline |
| Weights & Dimensions | ||
| Dry Weight | 75 kg (165 lbs) | 73 kg (161 lbs) ← |
| Mechanical & Electrical | ||
| Gear Ratio | 1.83:1 | 1.61:1 |
| Alternator | 108 W | 120 W ← |
| Fuel Delivery | Twin Carbureted | Carbureted |
| Maintenance | ||
| Spark Plug | NGK BUHW-2 | Champion L4J |
| Engine Oil | 50:1 Pre-mix | TC-W3 (50:1) |
Technical Comparison Analysis
Power & Displacement
Comparing the Mercury Classic 50 (4-Cyl) and Chrysler 45hp (2-Stroke) shows a displacement difference of 30cc. The Mercury features a larger 721cc 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 Chrysler is the lighter option at 73kg, offering a weight saving of 2kg 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 Chrysler offers the best charging performance with a 120W alternator. Choosing the right power-to-weight profile between these two 2-stroke engines depends heavily on your specific boat's displacement and daily power requirements.