Mercury 20hp FourStroke EFI vs Chrysler 20hp (2-Stroke)
20hp FourStroke EFI
20hp (2-Stroke)
| Spec | Mercury 20hp FourStroke EFI | Chrysler 20hp (2-Stroke) |
|---|---|---|
| Power & Performance | ||
| Horsepower | 20 HP | 20 HP |
| Displacement | 333 cc ← | 327 cc |
| Configuration | 2 Cyl / Inline | 2 Cyl / Inline |
| Weights & Dimensions | ||
| Dry Weight | 45 kg (99 lbs) ← | 59 kg (130 lbs) |
| Mechanical & Electrical | ||
| Gear Ratio | 2.15:1 | 2.0 |
| Alternator | 145 W ← | 113 W |
| Fuel Delivery | EFI | Carbureted |
| Maintenance | ||
| Spark Plug | NGK DCPR6E | Champion L77JC4 |
| Engine Oil | 10W-30 FC-W | TC-W3 2-Stroke |
Technical Comparison Analysis
Power & Displacement
Comparing the Mercury 20hp FourStroke EFI and Chrysler 20hp (2-Stroke) shows a displacement difference of 6cc. The Mercury features a larger 333cc 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 Mercury is the lighter option at 45kg, offering a weight saving of 14kg 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 Mercury 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.