Mercury 100hp (Inline-6 Tower of Power) vs Evinrude 90hp Looper V4

Mercury

100hp (Inline-6 Tower of Power)

1978 · 100 HP · 2-Stroke
VS
Evinrude

90hp Looper V4

1995 · 90 HP · 2-Stroke
Spec Mercury 100hp (Inline-6 Tower of Power) Evinrude 90hp Looper V4
Power & Performance
Horsepower 100 HP 90 HP
Displacement 1500 cc 1700 cc ←
Configuration 6 Cyl / Inline 4 Cyl / V4 60°
Weights & Dimensions
Dry Weight 125 kg (276 lbs) ← 143 kg (315 lbs)
Mechanical & Electrical
Gear Ratio 2.0 2.0
Alternator 201 W 201 W
Fuel Delivery Carbureted Carbureted
Maintenance
Spark Plug NGK BUHW Champion QL77JC4
Engine Oil TC-W3 2-Stroke VRO Injection

Technical Comparison Analysis

Power & Displacement

Comparing the Mercury 100hp (Inline-6 Tower of Power) and Evinrude 90hp Looper V4 shows a displacement difference of 200cc. The Evinrude features a larger 1700cc 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 125kg, offering a weight saving of 18kg 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 Evinrude offers the best charging performance with a 201W 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.