Johnson 50hp Looper (3-Cyl) vs Chrysler 45hp (2-Stroke)
50hp Looper (3-Cyl)
45hp (2-Stroke)
| Spec | Johnson 50hp Looper (3-Cyl) | Chrysler 45hp (2-Stroke) |
|---|---|---|
| Power & Performance | ||
| Horsepower | 50 HP | 45 HP |
| Displacement | 913 cc ← | 691 cc |
| Configuration | 3 Cyl / Inline | 2 Cyl / Inline |
| Weights & Dimensions | ||
| Dry Weight | 104 kg (229 lbs) | 69 kg (152 lbs) ← |
| Mechanical & Electrical | ||
| Gear Ratio | 2.42:1 | 2.0 |
| Alternator | 144 W ← | 113 W |
| Fuel Delivery | Triple Carbureted | Carbureted |
| Maintenance | ||
| Spark Plug | Champion QL78YC | Champion L4J |
| Engine Oil | TC-W3 (50:1) | TC-W3 2-Stroke |
Technical Comparison Analysis
Power & Displacement
Comparing the Johnson 50hp Looper (3-Cyl) and Chrysler 45hp (2-Stroke) shows a displacement difference of 222cc. The Johnson features a larger 913cc 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 69kg, offering a weight saving of 35kg 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 Johnson offers the best charging performance with a 144W 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.