SV Delos Repowers Delos 1.0 with a NANNI Marine Diesel Engine

We’re excited to share that SV Delos has once again chosen NANNI as their trusted engine partner, this time for the repower of Delos 1.0, their iconic 53-foot Amel Super Maramu. Known around the world for inspiring bluewater sailing adventures, Brian and Karin’s decision to repower Delos 1.0 with a NANNI marine diesel engine is a strong endorsement of reliability, performance, and long-term serviceability.

After successfully installing a NANNI N4.80 engine into Delos 2.0, their new-build performance catamaran, the Delos team returned to NANNI when it came time to repower their original monohull before selling. With NANNI now at the heart of both vessels, SV Delos will continue their journey with the reliability and performance sailors trust.

Why Repower Before Selling?

Repowering a boat before selling is one of the most effective ways to protect, and often increase, its value. For many prospective buyers, an ageing or unreliable engine is a major red flag, often leading to reduced offers or lengthy negotiations.

By installing a modern, reliable marine diesel engine prior to sale, owners remove one of the biggest uncertainties for the next buyer. A fresh repower signals that the vessel has been properly cared for, is ready to cruise immediately, and won’t require a costly engine replacement shortly after purchase.

Repowering is a major decision. Over time, even the most dependable boat engines reach a point where reliability, parts availability, or efficiency no longer meet the demands of modern cruising.

A boat engine repower offers several key benefits:

• Improved reliability and peace of mind.

• Better fuel efficiency

• Easier servicing and maintenance

• Increased resale value

For Delos 1.0, the goal of this repower was simple: ensure the boat is ready for her next lucky owner, with a dependable engine designed for long-distance cruising.

The NANNI N4.80 Marine Diesel Engine

The NANNI N4.80 is an incredibly versatile engine, well-suited to sailing yachts, sport fishing boats, and bluewater cruisers alike. It strikes the ideal balance between power, efficiency, and reliability, making it a strong choice for repower projects.

A significant deciding factor in SV Delos choosing a NANNI engine over other brands is its mechanical injection system. Unlike many competitors that rely on electronic or common rail injection, NANNI’s mechanical system is simple, robust, and proven. This means fewer electronics to fail, easier servicing, and peace of mind for long-distance cruisers who depend on their engine every day.

Key Features of the NANNI N4.80:

• 79 HP, 4-cylinder turbo diesel engine built on a proven Kubota engine base.

• High torque at low RPM for smooth, quiet, fuel-efficient cruising.

• Maximum RPM of 2700, best-in-class compared to competitors that rev out to 3600 RPM.

• Compact footprint, ideal for tight engine rooms.

• Mechanically injected engine – not electronic injection or common rail, reducing potential faults and simplifies maintenance

• Multiple gearbox and saildrive options for flexible installation.

Inspired by SV Delos?

SV Delos has inspired thousands of sailors around the world to chase adventure, cross oceans, and live life at sea. Their decision to repower with NANNI across both Delos 1.0 and Delos 2.0 reinforces why NANNI engines are trusted by cruisers who depend on their boat engine every single day.

If you’re considering repowering your boat, get in touch with our team to discuss the right NANNI solution for your vessel.

When reliability matters most, it pays to choose an engine built for the journey.