Generac IQ2000 (Long winded report)
First off I want to say Generac as a company was pretty responsive to deal with. They answered my calls and emails timely and professionally. What I did not like was all of the excuses I got from them...
Forum Discussion
OK, fully acknowledging that the OP has solved his problem but for others. Found the report on Westinghouse from the engineer.
Initial results were surprising. According to the db meter at 20 feet it and the Honda Eu2000 are a wash. What was really surprising was that it and the Honda are both reliably starting the modified (three second fan delay) Coleman Mach III 13,500 '06 vintage while the other test unit with 125ccs is not. And when it does start I can see the Westpro recovering faster from the initial dip.
Am working a real rigorous and instrumented shootout but am starting to wonder if the gensets in the 2200-2800W range wth 125 or 149cc motors are getting a double whammy: lacking the brute force of the 3ks or paralleled gensets but not able to ramp up as fast as the smaller engines. 80-100ccs may turn out to be a "sweet spot" for acceleration.
Looking at the strokes may be a clue: both the Honda and the Westpro are oversquare and have 43 and 40mm strokes. The 125 is undersquare at 52x58 mm and undersquare engines are known for torque and not fast response.
Interestingly the Yamaha EF2400is and EF2800i and EU3000i seem to share the same oversquare 171cc engine at 66x50 just rated at 3200rpm (2400), 3600 rpm (2800), & 3800 rpm (3000) which sounds like the 2400 would be better at AC starting particularly if the engine were tweaked to 3000 specs.
Unfortunately none of the Yamahas met the 14.5" wide criteria of my storage space.
Also even the EU3000i Honda is undersquare at 58x54mm.
Wonder what would happen if the 125 were re-engined with something about 60x45mm...
ps looks like the Westpro is manufactured by the Zhejiang Everlast Power Co., LTD (ELP) It is a "Top portable inverter gasoline generator manufacturer"
Now have the second Westpro and it is working very well, quickly becomming my choice since also the lightest and runs longest under load.
Have completed the generator tests and now the AC is reliable with any of the gensets I tried.
His webpage on testing http://padgett.performanceresearch.us/
Initial results were surprising. According to the db meter at 20 feet it and the Honda Eu2000 are a wash. What was really surprising was that it and the Honda are both reliably starting the modified (three second fan delay) Coleman Mach III 13,500 '06 vintage while the other test unit with 125ccs is not. And when it does start I can see the Westpro recovering faster from the initial dip.
Am working a real rigorous and instrumented shootout but am starting to wonder if the gensets in the 2200-2800W range wth 125 or 149cc motors are getting a double whammy: lacking the brute force of the 3ks or paralleled gensets but not able to ramp up as fast as the smaller engines. 80-100ccs may turn out to be a "sweet spot" for acceleration.
Looking at the strokes may be a clue: both the Honda and the Westpro are oversquare and have 43 and 40mm strokes. The 125 is undersquare at 52x58 mm and undersquare engines are known for torque and not fast response.
Interestingly the Yamaha EF2400is and EF2800i and EU3000i seem to share the same oversquare 171cc engine at 66x50 just rated at 3200rpm (2400), 3600 rpm (2800), & 3800 rpm (3000) which sounds like the 2400 would be better at AC starting particularly if the engine were tweaked to 3000 specs.
Unfortunately none of the Yamahas met the 14.5" wide criteria of my storage space.
Also even the EU3000i Honda is undersquare at 58x54mm.
Wonder what would happen if the 125 were re-engined with something about 60x45mm...
ps looks like the Westpro is manufactured by the Zhejiang Everlast Power Co., LTD (ELP) It is a "Top portable inverter gasoline generator manufacturer"
Now have the second Westpro and it is working very well, quickly becomming my choice since also the lightest and runs longest under load.
Have completed the generator tests and now the AC is reliable with any of the gensets I tried.
His webpage on testing http://padgett.performanceresearch.us/
