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How to increase Portable Generator Wattage output
Be careful with your transfer pulley size. If that HF generator head is like most "dumb" generators, the output relies on a constant 3600 rpm input. Faster than that can create an over-voltage condition, slower can create an under-voltage
//greg//
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How to increase Portable Generator Wattage output
My understanding of engine size compared to the generator size.
When I bought my PTO powered generator the dealer highly recomended buying a generator that is too big for the tractor rather than the other way around. His reasoning was having a tractor was too big for the generator posed a greater danger of burning out the generator during a constant overload situation.
My generator is a Winco 47,000 watt 3phase/single phase unit that requires a 105 hp. tractor to operate the generator at full load. Right now I don't have a tractor that big but I'm shoping.
So far as proper RPM, mine has a guage on the side of the generator with a white area and a green area, tha owners manual says to keep the RPM's in the green area which is about a 250 RPM spread on the tractor tachomter.
Frank.
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How to increase Portable Generator Wattage output
hardwood, agree with everything you said, I have a little 10KW 3 phase for running the pivot sprinkler. But if einnoc goes with the Harbor freight generator like he says, the 17 hp engine won't be that much of an over power, they recommend 16 hp and he has a 17 hp engine and his description of what he is running he will not overload it.
As far as the comment about engine speed, most gas engines are set for 3600 on the governor so should not be an issue on that unless he decided to go diesel, then he would have an issue with pulley selection.
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How to increase Portable Generator Wattage output
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As far as the comment about engine speed, most gas engines are set for 3600 on the governor so should not be an issue on that unless he decided to go diesel, then he would have an issue with pulley selection.
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That wasn't a simple comment, it was serious advice. You are correct in stating that most gasoline small engines are governed to 3600 rpm. But that's the shaft speed. To turn the HF generator at that speed would require a direct coupler. But it's a belt-driven generator head, which means two pulleys. And no pulley is provided with the generator. Care needs to be taken to ensure a 1:1 ratio when selecting the driving pulley and the driven pulley, thus ensuring that the generator turns at the prescribed 3600 rpm as well
//greg//
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How to increase Portable Generator Wattage output
It came from a lawn mower i never used.
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How to increase Portable Generator Wattage output
thanks for all the info again. I think I might give it a try and see what will become of it. I loved the harbor freight link and the product as well. How do you not like that place?
That is my dog Tae Dawg E. He is my T- cup Bulldog E. He is completely rotten but minds better than most kids.
He is truly a great dog and friend! I think I am going to see about finishing moving a building or talk my girl into building a catapault. . .Dont know how to spell that>
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How to increase Portable Generator Wattage output
There's two components to a stand-alone generator.
First the gas engine that spins the generator head. The second is the generator head itself.
They are designed to work as a set. They are very closely matched in size and relative output.
No matter how big an engine you put on a 2,000 watt generator, it will only really ever put out that much power.
It may put out a little more for a bit, but....... It's only a matter of time before you let the magic smoke out. 
The other issue with the mismatch is that it will be very probable that the different engine will spin the generator head at the wrong RPM. That will result in the wrong output voltage and frequency (hertz) which will play havoc with anything you try to run off the generator.
Best of luck.
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