Abby’s Guide > Outdoor Power Equipment (Lawn Mowers, Snow Blowers, Chain Saws and more) > Discussions > who sets impeller speed??
Outdoor Power Equipment (Lawn Mowers, Snow Blowers, Chain Saws and more) Discussions |
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snowmachine
Location: Washington State
Joined: Nov 12, 2008
Points: 268
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Re: who sets impeller speed??
Reply #20 Jan 9, 2010 4:24 pm |
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That says it all-The ability to throw great distances is not desirable where houses are set close together or in urban settings like New York City where the Sanitation Dept. will give you a Summons for blowing snow into the street. In addition you can't get something for nothing. If you adjust the size ratio of the pulley system to increase the rpm of the fan then under load you are going to need more HP to take advantage of the distance potential of the new pulley size. If they achieve a 30% increase with the same HP engine the unit must be over designed to begin with. I wonder what happens when you hit the EOD with the high speed set up. If the available hp is now being used to achieve high fan speed I don't think the end of driveway performance in plow packed conditions would be as good. Marc Last year when I was blowing 2-3 feet it seemed liked engine still had more to give. Of course pushing it beyond designed limits may make something else break. I only use this thrower 6-12 times during winter so hopefully it won't cut into longevity too bad. I'm a stickler for looking over my equipment after each use though.
HTTPs://ouppes.com
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aa335
 
Joined: Nov 29, 2008
Points: 2434
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Re: who sets impeller speed??
Reply #21 Jan 9, 2010 4:49 pm |
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I figure if I could get it to throw further and he asked I would tell him it was stock :-) :-) Does this guy live in your neighborhood?
http://www.youtube.com/watch?v=NHNLbAW6j7kYes of course it's stock. He had his snowblower in valet mode and using winter gas. Still breaking in his engine with dino oil. Plus, the deflector was stuck. :)
This message was modified Jan 9, 2010 by aa335
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GtWtNorth
https://t.me/pump_upp
Location: https://t.me/pump_upp
Joined: Nov 16, 2008
Points: 264
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Re: who sets impeller speed??
Reply #24 Jan 9, 2010 5:10 pm |
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I've been reading a lot about this subject here & would like to add my 2 cents. Since I am only a second year user, I am concentrating on understanding how to use my MTD 8-24 machine and it's limits. I have already re-powered up from 5 to 8 hp but I'm still not happy with the distance in general & specially for EOD. I have to take small slices to ensure it doesn't choke itself & bog right down. I have been considering impeller design among other thing as a cause. I noticed that my impeller has a large hook or hockey stick at the leading edge of the impeller (see photo). I postulate that this causes the machine to pull too much snow into the impeller too fast & helps cause the bogging.  If you look at some of the photos of other impellers a lot seem to have smaller hooks (except Simplicity). Also the better machines seem to have heavier more substantial impellers in general. I'm thinking that like a car flywheel, the heavier impellers also help to keep up the speed of the impeller as you move through heavier or deeper snow. Any thoughts? left to right top, John Deere, Simplicity, Murray, Bottom: Toro, older Ariens, Craftsman ( they are all for 24 & 26" machines) 
https://t.me/pump_upp
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snowmachine
Location: Washington State
Joined: Nov 12, 2008
Points: 268
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Re: who sets impeller speed??
Reply #25 Jan 9, 2010 5:21 pm |
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Does this guy live in your neighborhood?
http://www.youtube.com/watch?v=NHNLbAW6j7kYes of course it's stock. He had his snowblower in valet mode and using winter gas. Still breaking in his engine with dino oil. Plus, the deflector was stuck. :) That video is awesome!!! They could be brothers.
HTTPs://ouppes.com
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