For my TN property, I needed a great backpack blower with epic velocity to get wet maple leaves out of the rocks that form my home's perimeter. My Stihl BG86 hand held blower would not even move the leaves. I searched carefully and know the Echo products are among the most powerful in newtons. But in the end I picked the Stihl 800x Magnum 4 mix blower for it's real world velocity. About 20MPH more than the Echo, both in specs and in real world testing. Plus, the Stihl is 5 pounds lighter and way more comfortable/smoother. I was able to try the Redmax, Echo and Stihl. It's funny how the one I had no interest in ended up being best suited for the job.
The engine is a 4 stroke, 80cc, 4.4HP semi-self supercharged unit that really runs strong. You know what I mean, the engine does not struggle at all, it runs to full RPM (about 8800) and engine performance flat out rocks. The engine does use a con rod bushing at the piston pin instead of a roller bearing, and the crankcase is lubricated by the 50 to 1 fuel/oil mix, which might be not ideal for a bushing. First tank is the Stihl motomix fuel 50 to 1. Also of note, the 600 and 700 versions are known for piston troubles. The 800 is more reliable and with good oil will do 600 hours per year for up to 7 years in commercial use.
Since it uses 2 stroke oil, I'm thinking about using a EG-D/FD oil mixed with some form of race fuel (I typically use VP Racing C9) at 32 to 1 like all my other two stroke stuff. But maybe I'll step up to a VP racing fuel that is oxygenated with MTBE (adds about 5% more HP) and yes the carb is adjustable. As my TN property is at 2100 feet, so there is a 6% power loss up there. Should be interesting.
At nearly 240mph, this is the highest velocity blower around. This is due to the small nozzle. People put an adjustable nozzle on it which results in higher CFM/lower velocity which closely matches the other big boys.
The engine is a 4 stroke, 80cc, 4.4HP semi-self supercharged unit that really runs strong. You know what I mean, the engine does not struggle at all, it runs to full RPM (about 8800) and engine performance flat out rocks. The engine does use a con rod bushing at the piston pin instead of a roller bearing, and the crankcase is lubricated by the 50 to 1 fuel/oil mix, which might be not ideal for a bushing. First tank is the Stihl motomix fuel 50 to 1. Also of note, the 600 and 700 versions are known for piston troubles. The 800 is more reliable and with good oil will do 600 hours per year for up to 7 years in commercial use.
Since it uses 2 stroke oil, I'm thinking about using a EG-D/FD oil mixed with some form of race fuel (I typically use VP Racing C9) at 32 to 1 like all my other two stroke stuff. But maybe I'll step up to a VP racing fuel that is oxygenated with MTBE (adds about 5% more HP) and yes the carb is adjustable. As my TN property is at 2100 feet, so there is a 6% power loss up there. Should be interesting.
At nearly 240mph, this is the highest velocity blower around. This is due to the small nozzle. People put an adjustable nozzle on it which results in higher CFM/lower velocity which closely matches the other big boys.
