Outdoor Power Equipment (Lawn Mowers, Snow Blowers, Chain Saws and more) Discussions

Hi,

I live in Wisconsin and we get some pretty good snow here. What I need is a 16inch wide snowblower because my walkway is only 18" wide and I don't want to hit grass on either side of the walkway. I want it to be a 4 stroke because I heard it's easier starting and I don't like mixing fuel/oil. I also want as much HP as I can get in a machine that size. (preferably around 1000 pounds per minute rating)

My budget is $500. Could you please make a suggestion on a quality item that will last many year? Thanks.

dohcrxl wrote:

Two stroke generally do not make as much torque as an equivalently horse power rated four stroke.  For instance, a five horse four stroke will make more torque than a 5 h.p. two stroke.  However, don't let that deceive you into thinking that the two stroke will not have sufficient torque.  A two stroke engine makes a power stroke twice as often as a four stroke.  The reciprocating mass of four stroke engines is usually considerably more than an equivalent  two stroke engine.  This is where some of the torque advantage is.  Accordingly, four stroke engines will be heavier.  Two strokes have less mass but  in ope applications run at considerably higher rpm and are capable of generating quite a bit more power of an equivalent displacement four stroke.   The main advantages of two stroke engines are simplicity and light weight.  They are easier to start in cold weather because there is no oil in the crank case to cause resistance.  They have fewer moving parts thus fewer opportunities to fail.  You will never need a valve adjustment.  Two strokes love to rev.  Once you have it warmed up, run it at full rpm always.  Four stroke ope engines should be run at max. rpm as well.  Two strokes will burn more fuel than four strokes but in engines of this size, that will not be much of an issue.    

As far as torque measured in two stroke and four stroke engines of the same displacement, I'd say that the difference would not be of too much consequence.  For instance, a 200cc two stroke engine is capable of making  considerably more power than a four stroke L head or ohv engine of the same displacement.  That's why a 5 to 7 horse power Tecumseh two cycle engine is only 141 ccs vs. 195 ccs for their 5.5 horse power L-head four stroke.    Another aspect to consider is that the Tecumseh two cycle engine is no where near it's maximum power capability.  It's relatively under stressed.  If one  really wanted to, it would not be too difficult to squeeze ten horsepower out of that engine  A larger carburetor, some porting modifications and a tuned expansion chamber would do it.  Not that I would recommend such a thing for a snow thrower.  After all, the engine would  probably be revving up around ten grand and the shriek of the exhaust would be hard on the neighbourhood.     

Okay the weight of snow topic captured my interest so I tried to research it but my brain farted out.

If anyone else is interested here the link I tried to use.

http://www.islandnet.com/~see/weather/almanac/arc2007/alm07feb.htm

By the way, it it were me and I had a budget of $500 I'd try to find a good used 2 stage self-propelled snow-thrower.  7-8 horsepower minimum.  And look for a machine with a large heavy frame...if two men can lift it "easily", it's too light.

I think his width limitations for sidewalk precludes a two-stage. :)

I know but if it were me I'd rather have a 2 stage.  I run my 2 stage over grass to help out the dogs.  It doesn't harm the grass at all.  Frankly I think that a single stage would be more likely to tear up grass.  I'd go for a used 24" 2 stage with around 7-8 hp since he want to move snow quickly...and adjusted properly it shouldn't hurt the lawn.

Mr. Borat,

I too share your love of two strokes,  but if i may correct your statement.

"In addition, new two strokes use less oil in their mix with fuel.  That combined with superior oils of the day, you will be pleasantly surprised with how clean they burn."

All two stroke engines have the same needs/ requirements,  over time only the quality of the oil has changed ..

Give me an old engine that says "25-1" mix in the manual,  I will run it all day on 100-1  ratio premium  2 stroke oil , or  25-1  ratio of SAE 10w30 

Likewise if you check most manuals of newer two strokes they give a alternate of 25-1 for use of SAE 10w30 or so on....