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Re: 3000W Chinese Gensets Info.
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.299Views0likes0CommentsRe: 3000W Chinese Gensets Info.
A lot depends on how you define "horsepower" whether talking SAE or NET or DIN. I remember some ratings that were more marketting than real (wind it tight, throw in the clutch, see how far the Toledo needle swings). That said I wonder a bit if the Tecumseh (I know but not many posts on the other thread) is fudging a bit. For one thing it and the Chinese motors are both OHV, 3600 rpm, and the same displacement. An old saw in racing is "an engine does not care whose name is on the valve cover". The other interesting thing I found was that there are no differences in specification published between any of the OH195EA engines whether 5.0, 5.5, 6.0, or 6.5 hp. Third, both the 5.5 and the 6.0 have the same manufacturer's rating: 4.1KW. Assuming 30% loss this means 2.9KW continuous and a temporary surge (short enough so the flywheel effect is in force) to 3500 is reasonable. Now without a lot of other specs (compression ratio, carb size, cam profile, valve size, exhaust restriction) but all are designed as fixed speed, long endurance engines so would not expect a lot of difference. All appear to be splash lubed, iron cyl linered aluminum engines so that is not a factor. All run on 87 PON gas so compression is not going to be high. I doubt that there is much difference in the generator IHP since all seem to be direct drive brushless. In fact the only real difference I see is in the muffler and am working on that. So before we talk about HP we need to know how it is being measured and by what standard. What I see is that all are the same displacement, same construction, same speed, and run on the same fuel so would expect the output to be about the same. I have not seen any mention of ball or roller bearing cranks, lifters, or high ringed hypereutectic pistons which would make a difference.367Views0likes0CommentsRe: 3000W Chinese Gensets Info.
Pep Boys can be very confused. For those that are interested, the $249 price and $20 rebate for the Eliminator 3000 with "through April 2nd" and NO limitations such as "supply on hand" is on a 8 1/2x11 "Grand ReOpening" placard with the notation in the bottom right corner of 10025-78 US. The *other* Chinese genset they were carrying, Nikota, does appear to have gone out of business but Elim ( http://www.eliminternational.com - Generator section is down the page a bit and in Red) is still around. Be that as it may, does anyone have experience with the Coleman Powermate 3750 ? Looks like all it has are two 110v outlets and it does not mention a db rating. Am also not sure how they can get a 3750 rating with a 5.5 hp motor. Have been looking a bit further into the Coleman - user's manual says: "A & B. 120 V, 20 Ampere Duplex Receptacle This duplex is split so that 20 amps of current may be drawn from each half of the receptacle. However, total power drawn must be kept within nameplate ratings." - (3000 watts continuous ?). Motor appears to be a Tecumseh OHH55 5.5 hp OHV which seems a bit small for the rating. Should this be in a different thread of "American Generators" ?340Views0likes0CommentsRe: 3000W Chinese Gensets Info.
For more models of generators than you ever wanted to see, check out http://www.fuzing.com/ctt/001009/11/Electrical_Generators. Most in the catagory we are looking at are remarkably similar in layout which makes sense and only have subtle differences and almost all have links to the company's web sites (isn't this a marvelous age we live in ? Of course everyone says that.) One thing I am curious about and Professor you might be able to answer this: I am seeing 2600 watt generators with 6.5 hp engines and 3750 watt units with 5.5. Shouldn't there be some relation between engine power and generator output ?317Views0likes0CommentsRe: 3000W Chinese Gensets Info.
Received this answer from Pep Boys customer service about the Elim 3000: "At the present moment, we do not have any generators available and we apologize for the inconvenience. However, we are currently waiting on a shipment from a different manufacturer. We hope to receive the generators within the next 3 to 4 weeks. The product will be the same price, with the exception of the manufacturer brand." Unfortunately while my question was specific to the Eliminator, I am not sure if the answer refers to the Eliminator, the Nikota (company assets sold last Friday in auction), or the Coleman (3750 rating from a 5.5 hp Briggs. No db rating but I found an "85 db" notation on a similar model. Muffler does seem small. Anyone know ?) In the meantime anyone who manages to find a Eliminator 3000 even at $279 may still be eligable for the $20 rebate listed on page 4 of the current Pep Boys rebate book (PB050301). The following link may work: https://clients.gfsinc.com/graphics/forms/017586f.pdf Meanwhile, does anyone know if the Harbor Freight 91523-2VGA is imported by Elim - appears to be similar to the ELM3000L but has a lower rating (2800 peak/2600 continuous). Same 6.5 hp engine rating but the 168F-1 seems to be a common Chinese engine.342Views0likes0CommentsRe: 3000W Chinese Gensets Info.
The Pep Boys in Orlando shows the advt price for the ELM 3000 at $249 and there is also a $20 rebate (certificate online from pepboys.com) and the poster says the price is good through 2 April. That said there are apparently none in Orlando and a computer search showed none available. I wound up buying a Nikota after being offered a significant discount. After reading the concerns about the 10 amp limit on the recepticals I used a small test tank to try out the unit (did not want to put gas in the tank before I needed to use it). Unit started on second pull after applying the choke (had pulled through a dozen times befoore to get the oil circulated - am type who fills the oil filter before putting on car) and came off choke almost immediately in 70F weather. I then ran a 100 foot extension from the garage door where I had the generator to the wall a/c in the "Florida room". This is a new 11,800 btu unit labeled 9.6 amps/1074 watts and the Nikota had no problem running the unit. I would not doubt that a less efficient or larger a/c might prove a problem since the recommended "scope" per circuit is 1000 watts (80ish% of 1200) per circuit. Cool weather may have also required less starting power than 90F for the a/c. That said despite the fact that the FR and the garage share a wall I could not hear the generator with the door shut (to keep the cats out of the garage). So for well under $300 I have a backup for the mains if we have another "interesting" year of weather that should support a/c in one room on one circuit with the refrigerator and some entertainment on the other as well as for occasional use when travelling. ---- Now am a bit concerned as the 800 number for Nikota 877.464.5682 (877.4Nikota) give a fast busy and the web site www.nikotausa.com does not pull up. Is the company having trouble ?267Views0likes0Comments
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