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General Discussions / Re: 5KW motor noise
« Last post by B0bD on Yesterday at 02:18:21 PM »It may be under propped for getting maximum output, although max motor speed of 4500 is close to the original engine speed of 5000.
In any case I use it for slow cruises, and I have fooled around with a different prop to see what happens. Nothing on the noise frot.
The problem is that it is really noisy even at low speeds, whether or not it is under load.
The 90dB mentioned in my initial post is the peak, it hits 80 at about 1/4 speed.
Corchard's comment that his setup is below 40 dB makes me think there is something wrong with my motor, either bearings or electronics.
In any case I use it for slow cruises, and I have fooled around with a different prop to see what happens. Nothing on the noise frot.
The problem is that it is really noisy even at low speeds, whether or not it is under load.
The 90dB mentioned in my initial post is the peak, it hits 80 at about 1/4 speed.
Corchard's comment that his setup is below 40 dB makes me think there is something wrong with my motor, either bearings or electronics.