2 stroke vs 4 stroke outboard noise

More Canadians than ever are enjoying life on the water. A two stroke will almost always be pushing the boat faster than a four stroke at the same rpms.

So a trip to across to Straddie will use a lot less fuel with a 4 stroke than with a 2 stroke engine.

2 stroke vs 4 stroke outboard noise. 2 stroke vs 4 stroke noise You really asked an open ended question. The 4-stroke5hp Briggs and Stratton outboard is very noisey The 253040 50 and 60hp Evinrude E-TEC 2 stroke outboards are for the most part as quiet or quieter at speed than the equivalent 4-strokes. That holds true for the larger models too.

Loudness by itself is a subjective measurement ambient noise altitude objects distance frequency wave length etc A 4 stroke frequency is lower than a 2 stroke. Low frequencies because of the big distance between the peaks and troughs of the wave. Tend to go around objects that are in their way.

Due to the above reason four stroke outboards generally produce less noise than two-stroke outboards. Added Lubrication not Required. We need to add lube oil to the fuel for operating two-stroke engines.

Generally the 4-stroke will be a bit quieter but you need to pay attention to the SPEED at which those numbers are taken. A two stroke will almost always be pushing the boat faster than a four stroke at the same rpms. So when the 4-stroke has topped out look at the corresponding two stroke speed.

2 Stroke vs. 4 Stroke Outboard Fuel Economy. In the past 2 stroke motors burned more fuel than 4 strokes.

However the 2 cycle product is now much more efficient in its injection methods used to bring fuel into the engine. Some companies claim to be more fuel efficient than others but in many cases its a matter of splitting hairs. This has an effect on the perception of sound by human ears of the noise produced by a 4-stroke engine.

The 4-stroke engine has only half as many power strokes at a given crankcase speed as a 2-stroke. Therefore the fundamental frequency produced by the 4-stroke engine is about half that of a 2-stroke. Comparison tests of two brands of four-cycle 225-hp outboards were made with a current state-of the-art DFI two-cycle 225.

On identical 207 boats one four-cycle brand produced a best mileage of 47 mpg at 277 mph while the two-cycle gave a. 2-strokes are generally louder than 4-strokes and the higher pitch of the 2-strokes engine can make it unpleasant to hear. The lubrication system of a 2-stroke motor is less effective at protecting its moving parts which increases the need to replace parts and reduces the motors longevity.

What is difference between 2-stroke and 4-stroke outboards. A 2-stroke engine doesnt use valves to regulate the fuelair intake or exhaust gas exit so it has fewer moving parts and is smaller and lighter. The 4-stroke engine is mechanically more complex relying on four piston strokes to complete its power cycle which gives it lots of torque.

There has been a divide between those that prefer 2-stroke outboards and those who prefer 4-stroke outboards. Traditionally because of the simplicity and light weight 2-stroke outboards have dominated the outboard market. It is widely understood that modern 4-stroke outboards are quieter produce less vibration and create significantly less.

Since a 2 stroke has twice as many firing strokes per 1000 revs than a 4 stroke but each power stroke is less efficient the two have quite different power characteristics. But in something as mundane as an out board the power developed is much more a matter of what the engine designer designed. Which is quieter.

A 2 stroke or 4 stroke outboard motor. A 4 stroke outboard motor is much quieter at idle. While running 4 strokes still tend to be quieter but depending upon the manufacturer some 2 strokes compare to 4 stroke noise level while running.

2 Stroke Vs 4 Stroke Outboard Which is better. So a trip to across to Straddie will use a lot less fuel with a 4 stroke than with a 2 stroke engine. Quieter less vibrations.

As the 4 stroke is not firing as much as the 2 stroke you dont get that annoying high pitched noise that you hear on 2 stroke engines. That noise that is familiar to anyone who has used a chainsaw or mower before. More Canadians than ever are enjoying life on the water.

The sale of outboard engines is 20 higher than they were in 2010. These engines are also getting more powerful. Today the average is 58 horsepower.

While in 2010 the average engine power was 46 horsepower. Another development is the increase in the debate of 2 stroke vs 4 stroke. 4 stoke outboards are heavier than an equivelent 2 stroke with the same power often due to their larger relative size.

4 strokes are more mechanically complex around power block and head so consequently to a higher level of skill to maintain and repair. The newer two strokes are now also close to or comparable to the four strokes in terms of fuel ecomomy noise level and environmental cleanliness. If your boat is older it probably was not made for the increased weight of a four stroke and a new two stroke will be a better option for you.

4-Stroke Outboard Motor vs 2-Stroke Outboards. 4 Stroke Outboard Motors. What Buyers Should Know.

Boat owners considering purchasing a new outboard motor often have questions about the difference between a two-stroke and four-stroke outboard motor. Many people immediately assume that a two-stroke is less powerful and therefore less desirable. This isnt necessarily true.

Contrary to popular belief about 2 strokes new Evinrude E-Tecs are cleaner and quieter than four-stroke outboard motors just as fuel efficient and more imp. 4-Stroke Outboard Motor Vs a 2-Stroke Outboards. Looking for a 2-Strokenon DFI models or 4-Stroke Outboard Motor For Sale.

The following article is of the opinions and statements of AFA Marine inc. When you feel as though noise and smoke are serious factors in your purchasing decision. 2 stroke Vs 4 stroke - Yamaha outboard 60hp shootout.

If playback doesnt begin shortly try restarting your device. When it comes to 2-stroke vs 4-stroke noise levels the 2-stroke engine doesnt fare to well either. The two stroke action makes for a noisier engine.

This can be of great concern in urban areas. Not only are loud machines a cause for irritation in residential neighborhoods some local authorities have noise restricting legislation to prevent.