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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Still am not sure the Chinese are measuring their output the same way as dosmestic. Similar engines of similar displacement at the same rpm should produce about the same torque (which I am more interested in than HP) Have looked carefully at the Tecumseh and it is going to be a challenge to adapt a different muffler because while the Chinese motors have the exhaust port on the generator side of the engine, on the Tecumseh it is on the recoil side which means it and the intake are going to have to cross each other.
No big am just surprised that someone is not already making a flange/stub about 18 inches long. That plus a decent plenium should really quiet it particularly if designed so the reflections cancel - easy for a fixed speed engine. By a quick calculation about 7" should do it.
However Tecumseh has fitted their engine with an aluminum box about 6" square on a 3" manifold so every exhaust stroke reverbrates. Not much better than a stack.
There is no reason it should not be able to run as quietly as the other OHV engines of the same displacement just that was apparently not a design priority.
No big am just surprised that someone is not already making a flange/stub about 18 inches long. That plus a decent plenium should really quiet it particularly if designed so the reflections cancel - easy for a fixed speed engine. By a quick calculation about 7" should do it.
However Tecumseh has fitted their engine with an aluminum box about 6" square on a 3" manifold so every exhaust stroke reverbrates. Not much better than a stack.
There is no reason it should not be able to run as quietly as the other OHV engines of the same displacement just that was apparently not a design priority.
