Yamaha VMAX 150 (2.6L V6) vs Mercury 135hp V6 OptiMax
VMAX 150 (2.6L V6)
135hp V6 OptiMax
| Spec | Yamaha VMAX 150 (2.6L V6) | Mercury 135hp V6 OptiMax |
|---|---|---|
| Power & Performance | ||
| Horsepower | 150 HP | 135 HP |
| Displacement | 2596 cc ← | 2507 cc |
| Configuration | 6 Cyl / V6 (90°) | 6 Cyl / V6 60° |
| Weights & Dimensions | ||
| Dry Weight | 212 kg (467 lbs) | 195 kg (430 lbs) ← |
| Mechanical & Electrical | ||
| Gear Ratio | 2.0 | 1.87:1 |
| Alternator | 420 W | 720 W ← |
| Fuel Delivery | Carbureted (Precision Blend) | DFI (Direct Injection) |
| Maintenance | ||
| Spark Plug | NGK BKR7EKU | NGK IZFR5G (Iridium) |
| Engine Oil | Yamalube 2M | Mercury OptiMax/DFI Oil |
Technical Comparison Analysis
Power & Displacement
Comparing the Yamaha VMAX 150 (2.6L V6) and Mercury 135hp V6 OptiMax shows a displacement difference of 89cc. The Yamaha features a larger 2596cc 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 195kg, offering a weight saving of 17kg 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 720W 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.