3000W Chinese Gensets Info.
professor95 wrote: EDIT ADDED 45/5/2013- When this thread started in March of 2005, I never expected to see it survive this long or amass the quantity of information that has been shared here. In...
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The 40008 196cc Champion in my fifth wheel is converted to propane. I have a Champion 46539 mounted in the basement of the Volvo HDT I tow it with that is still gasoline powered. I usually power the camper from the gas generator since it is further away and cannot be heard in the camper, but when unhitched I run the LPG generator in the cave of the fiver.
Bottom line - despite all the "data" that tells you LPG has a lower BTU rating and thus the generator will produce less power does not prove itself to be true in real life usage. I can get the same amperage from the LPG unit as I do from the gas unit. The only difference I note is the LPG unit does not respond to the 15K BTU air conditioner starting as quickly as the gas unit - there is a lag of about 2 seconds on the LPG unit before the engine picks up.
I run LPG on a 7,500 watt Champion that serves as back-up power for the brick and mortar dwelling. It puts out every amp it was designed to produce equally well on LPG as it does on gasoline. This unit ran 24 hours a day for 10 days straight after Hurricane Irene. We are rural so are one of the last to have power restored after a major outage.
While Champion makes NO reference to "Honda" there is no question that the Chinese built engines on these units are clones of the aforementioned GX series. They are extremely well designed, have exceptional breathing characteristics for a small air cooled engine and are capable of sucking in more air/fuel than the OEM carburetor jetting provides. These engines respond extremely well to LPG as a fuel - perhaps due to the size of the valves, duration, lift and ignition timing.
Keep in mind that when used on a synchronous generator the engine runs at a constant 3,600 rpm - which is controlled by a centrifugal governor inside the engine. If it were a variable speed engine efficient delivery of LPG would be much more complicated.
Bottom line - despite all the "data" that tells you LPG has a lower BTU rating and thus the generator will produce less power does not prove itself to be true in real life usage. I can get the same amperage from the LPG unit as I do from the gas unit. The only difference I note is the LPG unit does not respond to the 15K BTU air conditioner starting as quickly as the gas unit - there is a lag of about 2 seconds on the LPG unit before the engine picks up.
I run LPG on a 7,500 watt Champion that serves as back-up power for the brick and mortar dwelling. It puts out every amp it was designed to produce equally well on LPG as it does on gasoline. This unit ran 24 hours a day for 10 days straight after Hurricane Irene. We are rural so are one of the last to have power restored after a major outage.
While Champion makes NO reference to "Honda" there is no question that the Chinese built engines on these units are clones of the aforementioned GX series. They are extremely well designed, have exceptional breathing characteristics for a small air cooled engine and are capable of sucking in more air/fuel than the OEM carburetor jetting provides. These engines respond extremely well to LPG as a fuel - perhaps due to the size of the valves, duration, lift and ignition timing.
Keep in mind that when used on a synchronous generator the engine runs at a constant 3,600 rpm - which is controlled by a centrifugal governor inside the engine. If it were a variable speed engine efficient delivery of LPG would be much more complicated.
