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Monthly Archives: February 2017

Waterproof Car Seat Covers is So Important

Waterproof covers on every car seat tend to be much stronger and more durable than untreated fabric covers which can easily rip or tear under too much stress. Car owners who have pets or children or both, quickly find out just how beneficial waterproof covers are. They are strong enough to resist tearing after being subjected to the constant and active motion of children and pets. Children often enjoy eating snacks while riding as passengers in the car as well as drinking beverages to pass the time. And they are not always careful to avoid having drops of food or liquids spill onto the seat coverings.

Waterproof covers won’t absorb the food crumbs and soda spills so often associated with having children as passengers in the family car. All it takes is one small stain to be absorbed into unprotected fabric, and not only does the car begin to look sloppy, there is also the expense of having to get the stain professionally treated to get the seat covering looking fresh and clean again. With waterproof covers, no moisture or liquid can penetrate the fabric. A quick mop up with a damp paper towel restores the surface of the cover to like-new condition.

Waterproof seat covers for cars come in a variety of colours to suit the overall decor, including solid colours as well as patterns. If a vehicle does not come with waterproof coverings, there are plenty of reliable car cover vendors online that can custom-make waterproof covers to protect your investment and keep the car’s interior looking fresh and clean as long as possible.

Effect of Wheel Size

Typically, someone wishing to plus-size starts from a 15- or 16-inch standard wheel size and upgrades to a 17-, 18- or 19-inch diameter. As wheel size increases, tire diameter decreases to maintain the same overall diameter, ensuring proper clearance, gearing and speedometer readings. Large diameter wheels and tires are often only available in increased widths, so plus-sizers must take their wheel well and fender depth into consideration as well. A manufacturer’s car wheel size guide can help determine what sizes will fit your make and model.

As to performance, increasing the size of your wheels has both benefits and drawbacks. On the plus side, tires with shorter sidewalls can improve steering response and cornering stability. Increasing the wheel diameter and width may also increase traction. On the downside, larger tires mean more weight. More weight hurts fuel efficiency, acceleration and stopping distance. Wider tires have a tendency to float, reducing traction in inclement weather. Perhaps the biggest downside to plus-sizing is the reduced durability of the tires themselves. Narrow tire sidewalls don’t have the strength of standard tires and can be damaged by potholes and road debris. They can also sustain damage from getting pinched more easily.

Numerous wheel size comparison road tests give 17-inch and 18-inch wheels and tires the highest ratings, citing good grip, steering, braking and a comfortable feel. Upgrading from a 17- to 18-inch diameter had negligible effects on ride quality and offered additional grip. Heavy 19-inch wheels and tires fared the worst in road tests, straining the suspension and increasing impact harshness. In contrast, 15- and 16-inch standard wheel sizes were the quietest and had the smoothest ride, but had slightly more understeer on the skidpad.

All about Automotive Fire Safety

· If you are driving a moving vehicle, get over to the rightmost lane or the shoulder. You want to exit the car without running into moving traffic. Use your blinkers to quickly switch lanes. If you have installed a loud air horn kit, sound it.

· Stop the car and turn off the engine. This will keep the car from pumping additional gasoline into the fire and will turn off the electrical systems.

· Get yourself and your passengers out of the car as quickly as possible. Stay clear of moving traffic.

· Run away from the car, waving your hands to warn oncoming traffic to move to the left. Run in the direction of oncoming traffic so that you can warn it. Don’t even think about trying to salvage anything “valuable” from the car unless it’s breathing.

· Call 911 or the fire department on your cell phone. Do NOT attempt to extinguish the fire – the fire may instead extinguish you.

While gas tanks do indeed explode, it is rare. More likely is that some fluids in the engine may ignite. Tires are also dangerous. When they get hot, they start exploding, spewing burning rubber everywhere. This is reminiscent of a napalm attack. And if that isn’t bad enough, batteries can also explode, sending acid and shrapnel flying. Air bags may deploy, sending burning plastic into the surroundings. A hellscape of burning fluids, rubber, glass and shrapnel, accompanied by an acid bath, should be enough to get you running for your life. Toxic clouds may follow you as you escape, so get far away from the scene. Lung damage from breathing in hot gases can kill you. Carbon monoxide rising from the burning wreck can suffocate you. Be grateful you escaped with your life. Don’t forget to contact your insurance agent once the danger has passed.

Performance Superchargers

The difference between the two types of superchargers is in the method of air compression. The first type is positive displacement. Positive displacement superchargers deliver pressure at a constant, almost fixed rate at all speeds and are normally mechanically powered. The air is divided within the supercharger and deposited bit by bit into the engine. Positive displacement superchargers have four main types of pumps; Roots, Lysholm twin-screw, sliding vane, and scroll-type supercharger or G-Lader. The pumps break down further into external and internal compression pumps.

Roots superchargers have external compression pumps. These pumps allow the pressure in the intake manifold to overcome the pressure coming from the supercharger which causes pressure to backflow into the supercharger. The backflow pressure is what compresses the gas power. These pumps are not as efficient as internal compression but are efficient in moving air at low pressure differentials.

The other types of positive displacement pumps use internal compression to some extent. Internal compression pumps compress the air within the supercharger and deposit it into the engine smoothly at a fixed compression ratio. The compression ratio should favor the supercharger because if the boost pressure of the engine exceeds the compression pressure of the supercharger, backflow will occur that takes away from the efficiency of the engine. Internal compression superchargers should match or exceed the pressure of the engine for maximum efficiency.

The other type of superchargers is dynamic compressors. Unlike positive displacement superchargers, dynamic compressors deliver higher pressure at higher speeds and are normally powered by gas turbines. They excite the air to a high rate and exchange the speed with the engine for air pressure. Therefore, the more pressure within the engine, the more air velocity the supercharger will produce to exchange with the engine.

Superchargers and turbochargers both work to increase the power output of an engine but are powered differently. The main difference is that superchargers are powered directly by the engine while turbochargers are powered by the exhaust from the engine. Turbochargers can gain more power and higher fuel efficiency than superchargers but superchargers have higher throttle response and can reach top speeds faster. This is because turbochargers feed off of the exhaust which is not strong enough at first to power a turbocharger until it reaches a high RPM. When the exhaust is strong enough to start the turbocharger, the boost causes even more exhaust to give the turbocharger more power, causing a sudden surge in speed and power output after a slow start. Turbochargers do not apply boost in proportion to the RPM like superchargers.