Tohatsu MFS30 (Early EFI) vs Mercury 30hp EFI (3-Cyl 500cc)
MFS30 (Early EFI)
30hp EFI (3-Cyl 500cc)
| Spec | Tohatsu MFS30 (Early EFI) | Mercury 30hp EFI (3-Cyl 500cc) |
|---|---|---|
| Power & Performance | ||
| Horsepower | 30 HP | 30 HP |
| Displacement | 526 cc ← | 500 cc |
| Configuration | 3 Cyl / Inline | 3 Cyl / Inline |
| Weights & Dimensions | ||
| Dry Weight | 71.5 kg (158 lbs) | 66 kg (146 lbs) ← |
| Mechanical & Electrical | ||
| Gear Ratio | 1.92:1 | 2.17:1 |
| Alternator | 180 W | 210 W ← |
| Fuel Delivery | EFI | EFI |
| Maintenance | ||
| Spark Plug | NGK DCPR6E | NGK DCPR7E |
| Engine Oil | Tohatsu 4-Stroke Oil | 25W-40 FC-W |
Technical Comparison Analysis
Power & Displacement
Comparing the Tohatsu MFS30 (Early EFI) and Mercury 30hp EFI (3-Cyl 500cc) shows a displacement difference of 26cc. The Tohatsu features a larger 526cc 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 66kg, offering a weight saving of 5.5kg 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 210W 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.