Suzuki has been an industry leader in compact four-stroke designs, and the DF60A lives up to that reputation. Effective use of advanced technologies provides the DF60A with high-tech performance, efficient operation, and excellent fuel economy. In drawing upon this wealth of knowledge, Suzuki engineers have designed an all-new inline three-cylinder engine with a compact dual overhead cam (DOHC) powerhead and four valves per cylinder. Suzuki's vast experience in designing and manufacturing four-stroke engines for motorcycle, automotive, and marine use is unrivaled.
#Suzuki outboard ecu tuning free#
The chain is oil-bathed and features an automatic hydraulic tensioner that keeps the chain properly adjusted at all times for maintenance free operation. Suzuki's self-adjusting timing chain is featured on the DF60A which is the first outboard in the 44.1kW (60PS) class equipped with this maintenance free feature. This, combined with reduced mechanical loss in other areas of the engine contributes to better fuel economy. A specially designed oil pump delivers greater mechanical efficiency allowing oil to flow through the lubrication system with less resistance. Suzuki engineers looked for ways to reduce mechanical loss as a way to improve efficiency in the DF60A. Smoother and improved starts delivered by the Easy Start System offer more efficient combustion, and greater fuel economy. The starter system does the rest, staying engaged until the engine starts. With Suzuki's Easy Start System, featured on the DF60A, all you need to do is turn the key and release. The system incorporates a tilt angle sensor that functions as both a tilt limit and trim sender and uses a step-free, continuous type limiter that makes installation of the outboard possible on nearly any type of boat. The DF60A is equipped with a tilt limit system that is designed to protect the boat from damage that can occur when tilting the outboard. It delivers its benefits over a wide operating range providing significant improvements in fuel economy from low speed operation well up into the cruising range.
The system controls the air to fuel mixture by predicting fuel needs according to operating conditions. To get the most out of every drop of fuel, Suzuki engineers developed the Lean Burn Control System on the DF60A, which enables the engine to operate on a lean air-fuel ratio or a thinner mixture of fuel. With the DF60A, they started with a clean slate redesigning every part and component incorporating the knowledge and technical advancements gained over the last ten years to create even lighter, more compact outboards. On top of that, they are quite a bit less expensive.Suzuki engineers are known for creating some of the most compact four stroke outboards in their respective classes. They can make 200+ HP fairly easily as well. Those engines are a lighter than the V6s, they are reliable platforms, and enough torque to get most sub 22’ boats moving really well. To me, the best engines to tune for light boats would be the mid range 4 cylinder outboards like the 3.0 Mercury four stroke, and the 2.8 Yamaha Vmax SHO (150-175). But, the results can be promising.Ĭompanies like Simon Performance Technology, Hydro Tec Marine, and a couple others are making products that address many performance needs from ECU programming, solid mounts and even beefed up propshafts in the case of Yamaha outboards. Head work can get expensive, same with exhaust and intake because nobody is making parts en masse. If you can get more air in, more air out, and have the ECU dial in the performance, you have the ability to really change an outboard. But, the advantage four strokes have is that they are fairly simple to tune. When direct injection technology took over the two stroke market, it created a challenge for modifying those engines, compared to the old EFI engines. But where do the new four strokes leave those looking to tweak their setup? In a good place in my opinion. Don’t get me wrong, it’s not the glory days, but there are some powerful, incredibly reliable engines on the market. It took about 10 years for the weight and cost to come down, and now we have some decent options with attractive warranties. At first, four strokes seemed like the enemy of high performance boaters they were heavy, lacked the low end torque, and were geared to push houseboats, not light performance hulls. While outboard engines have changed a great deal in the last 10 years, the biggest changes have come in the last three years, including the monumental shift at Mercury Outboards in the spring of 2018.
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