Honda BF150 VTEC vs Mercury 135hp (Inline-6 Tower of Power)
BF150 VTEC
135hp (Inline-6 Tower of Power)
| Spec | Honda BF150 VTEC | Mercury 135hp (Inline-6 Tower of Power) |
|---|---|---|
| Power & Performance | ||
| Horsepower | 150 HP | 135 HP |
| Displacement | 2354 cc ← | 1635 cc |
| Configuration | 4 Cyl / Inline | 6 Cyl / Inline |
| Weights & Dimensions | ||
| Dry Weight | 218 kg (481 lbs) | 135 kg (298 lbs) ← |
| Mechanical & Electrical | ||
| Gear Ratio | 2.14:1 | 2.0 |
| Alternator | 756 W ← | 201 W |
| Fuel Delivery | PGM-FI | Carbureted |
| Maintenance | ||
| Spark Plug | NGK ZFR6K-11 | NGK BUHW |
| Engine Oil | Honda Marine 4-Stroke | TC-W3 2-Stroke |
Technical Comparison Analysis
Power & Displacement
Comparing the Honda BF150 VTEC and Mercury 135hp (Inline-6 Tower of Power) shows a displacement difference of 719cc. The Honda features a larger 2354cc 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 135kg, offering a weight saving of 83kg 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 Honda offers the best charging performance with a 756W 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.