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mikiewest


Joined: Dec 29, 2007
Points: 262

who sets impeller speed??
Original Message   Jan 8, 2010 5:59 pm
husqvarna higher end snowblowers have a high speed impeller.Honda impellers rotate at a higher rpm compared to toro,ariens simplicity etc.Is this just a company decision ?Are there reasons why an Ariens or Simp dont set their rpms higher?
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snowmachine


Location: Washington State
Joined: Nov 12, 2008
Points: 268

Re: who sets impeller speed??
Reply #13   Jan 9, 2010 10:44 am
snowmachine wrote:
I believe this is the kit that gives you the high speed impeller on the lower end Husky, Poulan and Craftsman equivalents.

http://www.m-and-d.com/AY-187724.html

Basically a different auger pulley and belt. This used to be referenced on Husqvarna website last year but I don't see it now.

Also listed here:

"http://www.jackssmallengines.com/husqvarna_snowblower_accessories.cfm

"Designed for rural use where snow needs to be removed to a max distance. Not designed for residential use. Increases the snow throw 30%. Requires minor belt adjustment. Includes pulley, belt and instructions."



I picked up one of the high speed impeller kits for half price off of eBay. I am going to add it to my unit as well as a Clarence impeller kit (also on order). Dry powder throwing distance of mine is probably around 30-35 feet. I'm hoping with these two add ons I can maybe get toward 50 feet.



Is that realistic?

The Husky kit alone under perfect conditions should get me to 39-45.5 feet.

Do you think the Clarence kit could give me 5-10 feet more? I probably have a 3/8 inch gap at the impeller.

This message was modified Jan 19, 2010 by snowmachine


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aa335


Joined: Nov 29, 2008
Points: 2434

Re: who sets impeller speed??
Reply #14   Jan 9, 2010 12:32 pm
borat wrote:
The last big dump we had, it plastered heavy wet snow two thirds the way up the 35' light poles down at the street. That's good enough for me.

Great explanation Borat.  I agree with you completely.  For residential use, all of the 2 stage throw more than adequate distance.  There's no need for me to throw snow 50+ feet on my property, but it is fun to do it once in awhile.  Typically, 20-30 feet is what I usually aim for.  While throwing distance is not comparable to today's machines, the older 2 stage machines seems to perform well with their modest horsepower.  They are definitely geared lower and they make use of available torque.  They dive into end of drive piles and chew up that snow fairly well.

To answer mikiewest original question, I think Honda are designed to be used in rural area with large open space.  Therefore, distance is more important so that you don't have to throw the same snow over again.  I also noticed that it also has tighter stream of snow for less dispersion over long distance.  Because of the higher impeller rotation speed, this may also helps with dealing with slush, especially the almost liquid kind.  Not trying to brag but Honda was built to satisfy different performance requirements.  Given same hp rating, there's a compromise in volume to achieve longer distance.
This message was modified Jan 9, 2010 by aa335
snowmachine


Location: Washington State
Joined: Nov 12, 2008
Points: 268

Re: who sets impeller speed??
Reply #15   Jan 9, 2010 2:06 pm
Overkill on my part.... I am rural so throwing distance too far isn't an issue. It's more a "sleeper" competition with a guy down my road with the HS1132TAS. :-) He'll probably still throw further but I thought I'd give it a shot with a few bucks. aa335 wrote:
Great explanation Borat.  I agree with you completely.  For residential use, all of the 2 stage throw more than adequate distance.  There's no need for me to throw snow 50+ feet on my property, but it is fun to do it once in awhile.  Typically, 20-30 feet is what I usually aim for.  While throwing distance is not comparable to today's machines, the older 2 stage machines seems to perform well with their modest horsepower.  They are definitely geared lower and they make use of available torque.  They dive into end of drive piles and chew up that snow fairly well.

To answer mikiewest original question, I think Honda are designed to be used in rural area with large open space.  Therefore, distance is more important so that you don't have to throw the same snow over again.  I also noticed that it also has tighter stream of snow for less dispersion over long distance.  Because of the higher impeller rotation speed, this may also helps with dealing with slush, especially the almost liquid kind.  Not trying to brag but Honda was built to satisfy different performance requirements.  Given same hp rating, there's a compromise in volume to achieve longer distance.


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aa335


Joined: Nov 29, 2008
Points: 2434

Re: who sets impeller speed??
Reply #16   Jan 9, 2010 2:36 pm
snowmachine wrote:
Overkill on my part.... I am rural so throwing distance too far isn't an issue. It's more a "sleeper" competition with a guy down my road with the HS1132TAS. :-) He'll probably still throw further but I thought I'd give it a shot with a few bucks.

Hehe, I know what you mean.  There's a little Tim Allen in all of us.  Just make sure he doesn't have a nitrous bottle hidden somewhere.
mikiewest


Joined: Dec 29, 2007
Points: 262

Re: who sets impeller speed??
Reply #17   Jan 9, 2010 2:47 pm
Dude of course I'm just busting chops.Maybe u understand better cause u r from MA.MA people have that NY attitude and sarcasm.Why do I care if u own aSimp,Toro ,Ariens or Hondaor where u live??I own a Honda Accord.So I dont hate Honda.I also own a Toro 2450 and its a great single stage machine.But billy buckner did cost u guys the world series in 86 hehehe.Maybe u were not old enough to remember or dont care.....
This message was modified Jan 9, 2010 by mikiewest
mikiewest


Joined: Dec 29, 2007
Points: 262

Re: who sets impeller speed??
Reply #18   Jan 9, 2010 3:00 pm
My blower throws far enough but I was just wondering how they come up with impeller speed.Is it company preference or is it gov't regulated??Also it just looks nice when that machine is hurling that white stuff high and far...My home amp has 130W/channel rms.Never use that much power but it is nice to have.Usually 20 -30w is enough to listen to music.Same thing w/a blower.You might not need to throw snow 50ft but it's nice to know u can if u want to.
snowmachine


Location: Washington State
Joined: Nov 12, 2008
Points: 268

Re: who sets impeller speed??
Reply #19   Jan 9, 2010 4:21 pm
aa335 wrote:
Hehe, I know what you mean.  There's a little Tim Allen in all of us.  Just make sure he doesn't have a nitrous bottle hidden somewhere.


I figure if I could get it to throw further and he asked I would tell him it was stock :-) :-)

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snowmachine


Location: Washington State
Joined: Nov 12, 2008
Points: 268

Re: who sets impeller speed??
Reply #20   Jan 9, 2010 4:24 pm
mml4 wrote:
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.

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aa335


Joined: Nov 29, 2008
Points: 2434

Re: who sets impeller speed??
Reply #21   Jan 9, 2010 4:49 pm
snowmachine wrote:
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=NHNLbAW6j7k


Yes 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
aa335


Joined: Nov 29, 2008
Points: 2434

Re: who sets impeller speed??
Reply #22   Jan 9, 2010 4:53 pm
snowmachine wrote:
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.

Nothing wrong with modding as long as you know what you're doing.  Having spare parts around also helps too.

No stickers please.  I know they add horsepower, but $2 for 3 HP gain just isn't fair.  I had to spend $750 just for an extra 4 HP. 
This message was modified Jan 9, 2010 by aa335
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