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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?
Replies: 10 - 19 of 27Next page of topicsPreviousNextNext page of topicsAllView as Outline
mikiewest


Joined: Dec 29, 2007
Points: 262

Re: who sets impeller speed??
Reply #10   Jan 9, 2010 9:44 am
thanks marc for the explanation.I was asking a question but knee biter and AA had to start.Malachi crunch lol .yea ok knee biter you better run along,Happy Days reruns start in 1 hr...geez lol.....
Knee_Biter


Wicked Pissa

Location: just outside of BOSTON
Joined: Dec 14, 2008
Points: 147

Re: who sets impeller speed??
Reply #11   Jan 9, 2010 10:21 am
At least you are ok that it is all in fun

borat


Joined: Nov 10, 2007
Points: 2692

Re: who sets impeller speed??
Reply #12   Jan 9, 2010 10:30 am
Changing the auger drive pulley to a smaller diameter will increase rotation speed. The effect is the same as changing sprockets on a motorcycle. The larger the diameter sprocket on the rear wheel, the greater the torque delivery will be and acceleration will also be quicker than with a smaller diameter sprocket. However, top end speed will be compromised even if the engine has the power to achieve higher speeds. When the engine has achieved it's maximum rpm, regardless if it's making tons of horse power, the bike's speed will be restricted by the relative gearing. In most cases, even strong engines can only pull so much gearing. That's why it's important to have a balance between acceleration and top speed through correct gearing. With a snow thrower, one can achieve higher impeller speeds in lesser increments than 30%. If a person want's more throwing distance, but does not want to sacrifice too much torque, an increase of 10 to 15% might not be noticeable. Another thing to consider is that if you really want the throwing distance, re-power and re-gear. Some snow throwers are difficult to re-power due to controls locations. I know it would be very easy to put a bigger engine on the Simplicity 9528. However, I have no issues with snow throwing distance nor torque with the engine and gearing it has. 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.
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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