Sabtu, 25 Februari 2012

Basic Low Cost Belt Drives For a Go Kart

Go Kart Drive Line components can be quite expensive, especially if you are thinking of making your own reliable cheap go kart. Typical costs for drive line components can be in the range of 100 to 200 dollars. The cheap alternative, however, to the traditional chain-clutch driven system is the belt drive.
The basic belt drive consists of a driver on the engine and a driven on the drive wheel or axle. The belt is tensioned either by moving the engine forward or by pushing a belt tensioner on the belt.
There are several important requirements for a belt drive. First the proper ratio and second the proper type components.
Go Kart Belt Drive Ratio
The belt drive system in order for it to work requires a steep ratio of 8:1. Any less of a ratio and the engine will stall and the go kart will require pushing in order for it to go. (This 8:1 ratio assumes the wheel is 12 inches in diameter.) The rule of thumb for the pulley size is that the driven pulley needs to be as large as the tire. Any smaller and the ratio will be too little and the engine will stall or the belt will smoke.
Proper Component Selection
One of the big mistakes that first time go kart builders will make is to use a pulley that is made out of zinc. Typically these pulleys can be found at hardware stores; however, they are not able to handle the horsepower requirements of go karts. In fact if you do use a pulley that is made out of aluminum or zinc the pulley will melt after about ten minutes of use. The pulley needs to be made out of steel.
The next important design criteria about an engine pulley is that is needs to be as small as possible. A diameter of 1.75 is about at large as you can go before the ratio becomes out of range and the engine stalls and smokes belts.
Additionally, the pulley will get piping hot and needs to be held in place with Loctite and a bolt on the end of the engine to prevent it from coming off of the engine. And obviously the pulley needs to be keyed to the engine to ensure proper torque transmission to the pulley-belt.
The driven side of the go kart is an entirely different matter. The pulley can be made of sandwiched plywood as the low cost homemade alternative or the pulley can be bought at a local tractor supply store. The wood pulley is attractive because it is very cheap and can be mounted directly to a wheel via bolts.
The belt tensioner system requires some durable tensioner pulleys. Those too can be purchased at a local hardware store. The belt tensioner is basically a pulley that is jammed into the face of the belt causing the belt clearance between the engine driver and the wheel pulley to lessen. This now tensioned belt grabs much better and causes the wheels to turn.
It is important to be on the slack side of the belt when using a tensioner; otherwise you will be fighting the engine and constantly burning up belts. The way to look at a belt is to view it as a glorified rubber band. The belt stretches as it passes the engine pulley.
The tension side will always be tight, but the tensioner on the slack side encourages full belt wrap; and that is the key to the belt drive: at least 180 degrees or more of belt wrap around the engine pulley.
The idea is to get as much surface area grabbing the belt so that it efficiently transfers load through and to the remainder of the drive system.
The tensioner system can be activated by a lever arm or a cable. Usually a spring is used to deactivate the system so that when the clutch is unlatched the engine is not spinning the tires.
Important Note About Belt Tensioners
This is an important note about belt clutch systems. Always make the system deactivate by itself when no human input is being done. For example, the foot releases the pedal, the clutch automatically releases. The reason for this is if the engine is being started, the last thing you want is for it to be in gear. This will cause the go kart to lurch forward during start up. Again, it is important to have the clutch system deactivate automatically.

Kamis, 23 Februari 2012

Look For Quality, Warranty, and More in an ATV Battery and Snowmobile Batteries

Enjoying riding your all-terrain vehicle (ATV) or snowmobile demands reliable equipment. This includes reliability of all your vehicle's parts and systems. A premium ATV battery or snowmobile batteries are your best choice for reliability.
Let's consider an ATV battery first. Your search for a good product means finding a reputable online supplier.
The best suppliers carry batteries and chargers for a variety of machines. These include All-Terrain, Quad, Trike, and Four-Wheeler vehicles. This means you can access what you need from one vendor.
Look for a premium sealed AGM battery for your riding needs. These provide robust performance to your four-wheel machine. Consider batteries with QuadFlex technology for long-lasting performance.
Your choice of battery manufacturer is important. Consider a top brand that offers a sealed lead acid replacement ATV battery. This would be of the maintenance free type.
A battery of this type means no leaking acid and no tarnished chrome. Furthermore, there is no terminal corrosion.
In addition, a good online supplier offers batteries for major ATV brands. Examples include Arctic Cat, Bombardier (Can-Am), Dazon, and Honda. Additional examples include John Deere, Kasea, Kawasaki, Polaris, Suzuki, Yamaha and more.
A top supplier offers a substantial inventory. They carry premium lines of batteries, which cover a great number of part numbers. This expedites your searching so you're back on your ATV sooner.
For snowmobile batteries, consider an all weather maintenance free power sport battery. As you brave the elements, you want robust reliability. A premium battery means safe snowmobiling in cold temperatures.
A leading online vendor carries batteries for the top snowmobile brands. These include Arctic Cat, BRP-Ski-Doo, Kawasaki, Polaris, Ultranautics, and Yamaha. Use an online vendor's snowmobile battery selector to find exactly what you require.
Use this selector to look for a sealed lead acid AGM type. Snowmobile batteries of this type mean no more filling or leaking acid. They also mean no more messes to clean up.
A warranty is vital when purchasing an ATV battery or snowmobile batteries. You want to protect your investment. Find a manufacturer who offers a two-year warranty.
While you're at it, look for additional benefits. An online vendor who values you as a customer goes the extra mile.
An example is offering free shipping on all ground orders. This includes orders for all types of batteries and chargers.
When researching products, use a supplier who has an easy search function. With a myriad of inventory available, you want to narrow your search quickly. You want a simple process.
This process involves selecting a manufacturer, engine size, model and year. Moreover, a good search function lets you search by model number or OEM part number.
Finally, look for a supplier that offers battery chargers, testers and accessories. A smart trickle charger increases the life expectancy of your power sport battery. You get more years of use using a charger.
You can leave a premium charger on your batteries indefinitely without causing damage. They are safe for use on most all lead acid battery types.
Look for quality, warranty and other top features in an ATV battery or snowmobile batteries. Do your due diligence when researching these products. Then, revel in the enjoyment of outdoor riding with trustworthy batteries.

Sabtu, 18 Februari 2012

Go Kart Drive System Enigma: Tire Size Versus Sprocket Size: What Is The Best Combination?

Question: "I have this go kart and I want to make the rear tires bigger. If I change the diameter of rear sprocket so that it increases correspondingly with the rear tire, will the performance of the go kart suffer? In other words will the go kart go slower than before and will the go kart have really poor off the line acceleration?"
Good question, I have often thought about that myself. I have often said that the rule of thumb for a go kart to have optimum performance is to have the rear sprocket be nearly 85% of the rear wheel diameter. The question is, does that apply just for 12 inch diameter wheels or does it apply to 16 inch rear wheels too?
The answer to that question may surprise you. It surprised me. When I ran through the calculations a funny pattern emerged:
- A 12 inch diameter tire with a 12 inch diameter rear sprocket yielded a speed of 22 miles per hour at 7.3 feet per second squared of acceleration.
- A 16 inch diameter tire with a 16 inch diameter rear sprocket yielded a speed of 22 miles per hour at 7.3 feet per second squared of acceleration.
I thought that was erroneous so I ran a whole slew of tires sizes with corresponding sprocket sizes and still came up with the same numbers.
So the answer is no. No, your performance will not suffer if you increase your sprocket size correspondingly with the wheel size.
What will happen if you do not increase your sprocket size is that the clutch will become over loaded and smoke. The go kart will require pushing to start and will have horrible low end performance.
But if you increase the diameter of the sprocket so that it is 85% of the rear tires diameter, the performance should stay nearly constant.
That is an unexpected result, but one you can depend on if you are designing a go kart from scratch. The rule of thumb stands: "The rear sprocket should be nearly 85% of the rear tire size for optimum acceleration and speed performance."
The belt drive system for example is quite dependent on this relationship. The reason is that the drive pulley for a belt drive can be quite large, 1.75 inches in diameter, and requires that the rear pulley be as large as possible.
In the case of the wood go kart that I designed, in order to keep the ratio a simple one to one system (versus adding a jack-shaft) the rear pulley had to be the same size as the rear tire. I was able to get through this problem by making a wood pulley which was durable enough to handle road conditions, cheap enough to make myself and best of all gave the performance that was needed for good acceleration and overall speed performance.

Selasa, 14 Februari 2012

Bushwacker Fender Flares for the Bold Look

n the 4-wheel drive community, Bushwacker is a common name, as Bushwacker is a manufacturer of high quality Jeep accessories and fender flares that established itself decades ago. The products are not only high quality, they are stylish and what the Bushwacker name has been built on.
Bushwacker backs all their Jeep accessories and fender flares that come with a limited warranty for the life of the duration of the accessories or fender flares life and they are manufactured so that they are easy to install. For the 4-wheeler, there is nothing better than decking out their ride, and Bushwacker definitely provides the high quality, stylish parts and accessories for this.
Bushwacker has many different styles in their flares which will transform your Jeep in a stylish manner and within minutes.
Bushwacker Fender Flares
Bushwacker Pocket Style Flares: When you size up to a wider, larger tire, you must keep your Jeep legal. The Bushwakcer Pocket Fender Flares are the perfect flare for the job. The installation of the flares is quick and convenient and require no drilling. Features of the Pocket style flares include no warping, cracking or fading. The fender flares come with a stainless button-head torque head bolts.
Bushwacker Extend-A-Fender Flares: These Bushwacker flares are another stylish flare with the cost much less than most flares. The Extend-A-Fender Flares provides the Jeep with a sharp, bold look that sets it in a class of its own. These flares provide a 6" coverage can easily be custom painted.
Bushwacker Cut-Out Flares: The Bushwacker Cut-Out Flares provide extra tire coverage to the Jeep, and protect its paint job. Cut-Out Flares are designed for Jeeps with bigger tires and provide 6" of tire and made of Dura-Flex 2000® for optimal flexibility and durablity. Features include no warping, cracking or chalking. These fender flare come with self tapping button head stainless torque screws which provide a fast and easy installation process. On some models, drilling may be required.
Bushwacker Flat Style Flares: Bushwacker Flat Style Flares, are stylish flare, as well, and add additional tire coverage to the Jeep, as well as, protection. Installation is easy and within minutes the Jeep will be transfored to a distinctive looking vehicle that shines. The process is fast and adds that off-roader look to the Jeep that so many Jeep enthusiasts admire. Bushwacker Flat Style Flares do not warp, crack, or chalk.
Bushwacker is definitely a name that has bult it reputation through high quality and durablity products over the last four decades. Fender flares are just one of the many Jeep accessories that sets the Jeep aside from others, and gives a sharp, bold look that makes 4-wheel vehicles. There are many online suppliers that offer Bushwacker products, such as, 4WD.com, which is a reputable supplier of 4-wheel drive vehicles. 4WD.com carries the best in high quality products from leading manufacturers in the industry such as Bushwacker and Smittybilt, as well as, other quality manufacturers that are known throughout the 4-wheel drive community

Minggu, 12 Februari 2012

How to Buy Quality ATV Batteries Online

If you are buying ATV batteries, you won't find a better deal than most dealers for motorcycle batteries. If you want to save money on batteries, then you should consider them.
However, before you make your purchase, you may want to consider shopping around first. If you don't, you could end up losing your shirt, and who wants to do that? So, to get the best value for your money, here's what you need to do:
First, you'll want to visit the search engines. You'll get the best results using Google, so you may want to consider going there.
Do a search for your search term in quotes. Since you're replacing ATV batteries, you'll want to search for that.
Once you reach the appropriate site, then your next step is to search the site for a battery for your brand of ATV. Start by comparing cost. Next is the shipping and handling because this can actually cause the cost a lot more than you expected, so avoid buying from a site that charges it if you can.
Look for additional accessories. For example, you may also want to consider looking for portable battery chargers, especially if you plan to travel and want to take your ATV with you. This will allow you to recharge your battery in remote locations if you need to, as well as perform any necessary maintenance.
One important thing you want to remember here is to never use a car charger on your battery. If you do, you will destroy the battery as a car battery charger isn't made to be used with this type of battery.
You could also hurt yourself, so it's best just to avoid this altogether. Since most of these types of sites will sell accessories too, then this will help you buy everything you need and save money at the same time.
Customer service is one of the final issues you want to consider, as well as being able to buy locally. If you need it now, you'll want to locate a company nearby that sells what you need. Consider using Google Business Local for this one. You can search by location and topic.
If you have problems, good customer service will help you get it solved more quickly. Many sites will offer you a phone number, email address or maybe even chat.
When you have finished your research, place your order. Don't forget to check when you can expect to receive your battery.
Depending on who your company uses to ship your order, you can determine how quickly you'll receive your order. If you need it now, you don't want to order it online. Otherwise, you'll have to wait to get it, so you'll need to decide here how long you can wait.
When you receive your order, check to make sure it's complete. Install your new battery and make sure everything is working. If you run into problems, contact customer service and get their help. They will also be able to assist you with installing the battery if you're a little nervous and want some help.
Buying an ATV battery is a simple process, especially if you buy one online. Take the time to do your research before making your purchase. Don't forget to bookmark the site you purchased from when you're finished. you'll save yourself a lot of hassle, as well as a lot of time and money in the long run

Jumat, 27 Januari 2012

Needed Equipment for an Off-Road Trip - ATV Battery and Motorcycle Batteries

Trip planning is often stressful, especially if you're going completely off-road and miles into the wilderness. An extra ATV battery and motorcycle batteries may not seem terribly important, but they could save a lot of headache. No one wants to be miles away from civilization without tools, a flashlight or other necessities.
Don't let planning your next trip be overly stressful; keep this checklist handy:
Flashlight: Don't underestimate this small, but much needed item. Even if you're just planning a day trip, take a flashlight just in case you're out past dusk and something happens to prevent you from getting home safely.
Toolbox: This may seem redundant, but a little reminder never hurt anyone. Always make sure your most-needed tools are in the toolbox and the toolbox is in the vehicle with all of your other necessary items.
Jack: Make sure to take a jack in case you need to change a tire or get under the ATV to fix something. You never know what may go wrong when you're miles away from everything familiar and need something so simple.
Pry Bar: Thin and easy to stow away in the back of the truck or in the trailer with your ATV or motorcycle, a pry bar could come in very handy for lifting heavy items.
Spare Tires: Flats happen. No one likes them, but tires do occasionally go flat. Take a spare tire for each motorcycle or ATV you take on the trip. A can of tire fixer and portable air pump is also a nice addition to any off-road trip.
Electric Drill: Changing parts in the middle of the wilderness is time consuming. An electric drill with attachments and extra batteries could save a lot of time in the event something breaks down.
Tape: Both duct tape and electrical tape should always be kept in your toolbox for emergencies. You never know when something electrical may malfunction, requiring on-the-spot repair. Duct tape is strong enough to hold some pretty serious weight if needed for parts that don't generate heat.
First Aid Kit: Never leave home on a motorcycle or ATV trip without a first aid kit. Simple first aid should always be understood by all participating in the trip. Advanced first aid is preferable in the event of serious injury. Consider first aid and CPR classes in case of emergencies.
Batteries: Extra flashlight batteries, motorcycle batteries, or an ATV battery are absolute necessities. You may not always have cell phone service, but make sure you take a fully charged phone just in case of emergencies.
This is a very basic checklist for the bare necessities. Your list of personal necessities may be a bit more entailed. Other items you decide to take may be added to the list on an as-needed basis. Some other items may include a sleeping roll, a hammock or tent, or even cooking utensils for overnight stays.
The checklist for a full camping trip will, of course, be much bigger. Aside from motorcycle batteries, an ATV battery, and tools; you'll need canned foods with a manual can opener. Don't forget the toilet paper. Every trip should also include a ready-to-leave checklist so you make sure to leave the wilderness as clean as it was when you arrived.

Rabu, 11 Januari 2012

How To Select The Best Catalytic Converters For Off-Roaders

Truck and jeep owners who participate in off-road adventures need quality vehicle products including Catalytic Converters. These exhaust products must be able to handle rough terrains, rock crawling, and mudding. 4 Wheel Parts is a leader of vehicle products for off-roaders including catalytic converters which are required for vehicles that are used both on and off the road.
There are several types of catalytic converters. Some are legal for street use while others are not. This may be state-specific so be sure to know your state's law regarding it. Each type of converter has individual benefits. All are critical to an effective vehicle exhaust system.
Converters play a major role in reducing vehicle emissions. These exhaust products convert emissions from vehicle exhaust systems into non-toxic outputs. To do this, a chemical reaction occurs in the converter that changes toxic pollutants created by an internal combustion engine into non-toxic substances.
Many view trucks and jeeps as particularly responsible for producing harmful vehicle emissions. This is particularly true for those that run on diesel fuel. The larger the vehicle's engine, the more pollution. Or so it seems. In reality, there are several high-quality catalytic converters that truck and jeep owners can purchase through 4 Wheel Parts to significantly reduce toxic exhaust emissions.
When you buy a "49-State" catalytic converter, you get a product that meets EPA (Environmental Protection Agency) and emissions requirements for vehicles. Two types are made: universal fit and direct fit. Universal fit converters can be used with most vehicles. However, installation requires customization with cutting or welding equipment. You will need to have this type of converter professionally installed.
If you prefer to install the converter yourself, the "49-State" direct fit model is your best option. This type of catalytic converter meets the specific requirements of each vehicle make and model. While you can keep it simple by using the bolt-on installation procedures, you may want to further secure it by welding it to insure it stays in place.
A "California" catalytic converter meets CARB (California Air Resources Board) and emissions requirements for vehicles. Like the "49-State" converter, the "California" catalytic converter is available as a universal fit and direct fit product. The universal fit product will require professional installation while the direct fit can be self-installed. Both are for legal for street use. Unlike the "49-State", the two "California" converters cannot be modified beyond stated applications and remain compliant with CARB.
If you are planning to use your truck or jeep for off-street racing, there are race converters available that produce limited back pressure. This allows you to meet racing as well as emissions requirements. Diesel catalytic converters are also made for racing vehicles.
Off-roaders need high-quality converters because they push their vehicle's engine which produces more exhaust. That is available from 4 Wheel Parts reduce harmful vehicle emissions. Through a chemical reaction that results when specific pollutants and exhaust chemicals interact with one another, converters help keep our air and environment clean. And they are ideal for off-roaders who are rough on their vehicles.