Tohatsu MD90 TLDI (2-Stroke) vs Johnson 85hp Crossflow V4
MD90 TLDI (2-Stroke)
85hp Crossflow V4
| Spec | Tohatsu MD90 TLDI (2-Stroke) | Johnson 85hp Crossflow V4 |
|---|---|---|
| Power & Performance | ||
| Horsepower | 90 HP | 85 HP |
| Displacement | 1267 cc | 1632 cc ← |
| Configuration | 3 Cyl / Inline | 4 Cyl / V4 90° |
| Weights & Dimensions | ||
| Dry Weight | 143 kg (315 lbs) | 138 kg (304 lbs) ← |
| Mechanical & Electrical | ||
| Gear Ratio | 2.00:1 | 2.00:1 |
| Alternator | 504 W ← | 144 W |
| Fuel Delivery | TLDI Direct Injection | Twin Carbureted |
| Maintenance | ||
| Spark Plug | NGK IZFR5J | Champion QL77JC4 |
| Engine Oil | Tohatsu TLDI Oil | TC-W3 2-Stroke |
Technical Comparison Analysis
Power & Displacement
Comparing the Tohatsu MD90 TLDI (2-Stroke) and Johnson 85hp Crossflow V4 shows a displacement difference of 365cc. The Johnson features a larger 1632cc 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 Johnson is the lighter option at 138kg, offering a weight saving of 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 Tohatsu offers the best charging performance with a 504W 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.