!±8± Yard Machines 31A-2M1E700 21-Inch 123cc OHV 4-Cycle Gas Powered Single Stage Snow Thrower

Brand : Yard Machines | Rate : | Price : $337.26
Post Date : Nov 30, 2011 11:05:28 | Usually ships in 1-2 business days

Yard Machines 31A-2M1E700 21-Inch 123cc OHV 4-Cycle Gas Powered Single Stage Snow Thrower

• 21-Inch clearing width
• 6-1/2-Inch ez chute control
• 7-Inch by 1-1/2-inch wheel size
• 13-Inch intake height
• Non-carb Compliant/Not For Sale In California

More Specification..!!

Yard Machines 31A-2M1E700 21-Inch 123cc OHV 4-Cycle Gas Powered Single Stage Snow Thrower

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The Types Of Log Splitters

!±8± The Types Of Log Splitters

There are a wide variety of log splitters you can buy in the market today. You can buy these in a number of styles and designs based on your needs. You could choose from different sizes as well. The come equipped with power packed features which have made log splitting very easy. It often happens that people don't know which log splitter would be perfect for their needs. It's important you make sure that you purchase a product that suits your needs and not spend extra money on a machine which would exceed your requirements. Choosing your product largely depends on the size or diameter and the type of wood that you are splitting. Another factor that comes into play is how long you have been storing the wood which has to be cut. You also need to make your decision based on the number of knots in each log.

In this article I am going to classify the kinds you can choose from so it becomes easier for you to make your pick.

1. Small Compact Electric Units and manual units - First lets start of with the small and compact units. The 6 - ton and the 8 - ton machines are great if you are looking at cutting less than a cord of wood a year. You could go through more but it could mean quite a work out. These are ideal to carry along on camping trips as they are very portable. You could also opt for the electric units such as the 4 - ton and the 7 - ton machines. These are usually used in homes and residences where home owners cut small average sized wood of 1 - 2 cords a year. These emit no fumes and require no gas which makes them quite convenient to own. They don't make too much noise either. These are ideal to use in your basement or backyard.

2. Residential Units - These are usually designed to last a long time and cost much less than the other options so that most homeowners can afford them. They are built for homeowners who cannot afford their own log splitters. They come equipped with pneumatic tires and garden tractor pin hitches. You could also opt for 12 and 16 ton splitters which are road worthy. These are available in both electric and gas motors. They can handle logs that are 20 inches long and 24 inches in diameter. They would weigh anywhere between 250 to 300 pounds. These are also used for commercial purposes as well.

3. Heavy duty commercial and residential unit - These units are also road worthy and are fully towable. They have a 26 inch log opening. They can be used to split all types of wood and can cut logs which are up to 30 inches in diameter. They come with a slanted wedge design which allows you to tip the wedge and penetrate the wood allowing you to cut larger logs. These would come with standard high speed trailer tires with a 2 inch coupler for towing.

These are the 3 most commonly used machines in the States today. I suggest your do some research online before you go ahead and buy one. There are a number of great deals you may find. Try and find the best warranty as well.

Overall remember to buy one which would suit your needs best.

The Types Of Log Splitters

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Torque Vs Horsepower - Which is More Important?

!±8± Torque Vs Horsepower - Which is More Important?

You've probably heard various racers and engine builders/tuners talk about torque vs HP. Some say "torque is what moves the car", others say HP is all that matters. Well, you'll have to put me in the latter camp, because HP is the most important. Torque is how much twisting force you are putting on the drive shaft, typically measured in ft lbs. Horsepower is multiplying this twisting force by RPM (how fast you can keep applying this force).

If we didn't have gears, than torque would be more important. That's because in any 1 gear, the torque peak is where the car accelerates the quickest, producing the highest Gs. The torque peak can be important for launching the line, but after that HP is all that matters.

I'll try to illustrate with some numbers. Gears are torque multipliers. You can get most any torque you want, if you are willing to give up RPM. Say you have 400 ft lbs at 3000 RPM (228 HP) and 350 ft lbs at 6000 RPM (400 HP). If you stay in 3rd gear, you could get .4 Gs acceleration at 3000 (lets say 60 MPH) and .35 Gs of acceleration at 6000 (120 MPH). However, if you shifted 1st gear and put that 400 HP to work at 60 MPH, you could get, say .7 Gs of acceleration. You may accelerate the quickest in any 1 gear at the torque peak, but you will accelerate quicker in a lower gear at the HP peak.

Racing is all about quickest acceleration to get to the highest speed. Gears let you keep the acceleration high by keeping the engine in its highest HP range. For example, if your engine has peak HP at 6000 RPM, but pulls strong to 7000 RPM, you would probably want to shift at close to 7000 RPM, so when the revs drop back to, say, 5000 RPM, you are still in a high HP range.

Let's try some real examples, using Drag Racing Simulation Software. We'll try shifting to keep the engine around the torque peak, then letting the computer keeping the RPMs around the HP peak.

Condition Pk Tq Pk HP ET MPH Shift RPMs

Keep Engine at Tq Peak 270 274 13.43 99.46 4700

Computer keeps Engine at HP Peak 270 274 12.66 106.81 6800

Computer keeps Engine at HP Peak 270 268 12.60 107.74 6950

(broader HP peak)

Standard Power Curve

You can see the performance is much better when you keep the engine in the high HP range (12.66 ET) as opposed to the high torque range (13.43 ET). The graph below shows how keeping the engine in a higher HP range in lower gears produces higher acceleration rates.

To summarize, it is HP through the correct gear ratio which produces best performance. If you are building an engine, you want the highest average HP through the RPM range you will be using. For a circle track car where you don't shift, this can be a very broad RPM range. For drag racing with a high stall converter or very narrow ratio transmission, this may be a very narrow RPM range.

Torque Vs Horsepower - Which is More Important?

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