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Mercury Racing 2.5 EFI Offshore Race 280 HP Outboard Motor. Fully Service, Perfect Condition and Ready to Go !!
Mercury Racing 2.5 EFI Offshore Race Outboard Motor 280-HP
$3,800.00
Mercury Racing 2.5 EFI Offshore Race 280 HP Outboard Motor. Fully Service, Perfect Condition and Ready to Go !!
Mercury Racing 2.5 EFI Offshore Race 2-Stroke (V6) 280 HP Outboard Motor
SPECIFICATION
Horsepower: 280 hp (crankshaft) / 260 hp (propshaft / 194 kW)
Displacement: 153 CID (2,503 cc to 2,507 cc)
Cylinders: V6 (60-degree V-block)
Bore & Stroke: 3.50 in × 2.65 in (88.9 mm × 67.3 mm)
Bore Type: Nikasil-coated cylinders
Max Operating RPM: 7,500–8,000 RPM
Compression Ratio: 6.25:1 (approx. 130 psi pressure)
Induction: Electronic Fuel Injection (EFI)
Fuel Pressure: 38–40 psi (262–276 kPa)
Fuel Requirement: 92 minimum octane [(R+M)/2] or 98 RON unleaded
Oil Ratio: 32:1 mix
Recommended Oil: Quicksilver / Mercury Performance Blend 2-Cycle
Charging System: 16-amp / 226-watt
Spark Plugs: NGK BUZHW
Gear Ratio: 1.87:1
Weight: Approx. 412 lbs (187 kg)
KEY FEATURES
Lightweight Powerhouse: Built on a ultra-compact 2.5-liter architecture, offering an exceptional power-to-weight ratio unattainable by heavier modern 4-stroke alternatives.
Advanced ECU & Ignition: Utilizes precise computer-controlled timing curves designed specifically for high-load acceleration and sustained high-RPM operation.
Top-Guided Pistons & Racing Rods: Equipped with heavy-duty top-pinned pistons and top-guided connecting rods built to withstand extreme mechanical stress.
High-Output Charging: Unlike stripped-down drag versions (like the 300 Drag), the Offshore variant features a robust 60-amp charging system to run onboard electronics.
Specific References
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