Modification have not finished yet while the alloy wheels not changed. The more thin wall tires, the bigger alloy wheels, higher prestige.
This trend began to depart from the race that is quickly transmitted to the modification spaces. In the circuit, large alloy wheels with tire walls thin (low profile) and the tread width is very beneficial because car drivers become more agile and responsive on the corner.
Moreover, hardly changed the tire diameter, so no longer need to adjust the speedometer and odometer. Large wheels also appear to appear sporty and masculine. No doubt, the main factor driving this is the proliferation of this trend the community.
Changing the default factory alloy wheels (OE / original equipment) with a larger diameter is known as plus-sizing. In these terms then known repertoire of plus-one, meaning that adding one inch diameter alloy wheels from OE. Examples from a 16-inch 15-inch. Similarly plus-two, add two inches, from 15 inch to 17 inch, and so on.
Apparently according to Consumer Reports testing, consumer protection agency in the USA, plus-one proved to yield the greatest benefits in terms of Performance. Plus-two and so on just gives a little extra traction while driving comfort, hydroplaning resistance and traction dropped. Price to pay is also more expensive. So bigger is not always more profitable. Plus-sizing is not recommended for SUVs unless indeed an option from the manufacturer.
Therefore, if you’re satisfied with the handling and comfort driving your car, it would suggest to forget the plus-sizing. Faithful only with OE.
Risk Plus Sizing
If not, start by considering the risk. Tires with big wheels and low profile responsive ride on the road was smooth. Conversely hollow road / rough, the tire is not perfectly capable of damping. Driving so uncomfortable. Therefore the streets in this country still have to ‘understandable’, the most wise if plus-sizing, not too far from the OE tire size.
Not only eroded the level of driving comfort, plus sizing excess (plus two / three or more) also threaten the safety wheels. Consumer Reports Tests at plus-three plus two and end up with damage to wheels and tires.
Choosing Velg
If you know the risks, and remain ‘unwilling’ with OE tires, it was time to visit the tire store / modifier. They will offer wheels and tires that fit on OE tires. As a rule, the addition of 1-inch diameter alloy wheels, in the match by lowering the tire wall thickness of between 50-10 percent and the addition of the tire tread width of 10 millimeters. Make sure also speed rating and load rating of the new tires should be higher than the original tires. Please note, plus sizing tire diameters are always changing overalls. It is difficult to exactly match the OE. This will affect many things including the speedometer.
Check also the wheels are in the drill. Most wheels are made of aluminum or a mixture of aluminum and steel. The problem is their quality varies considerably. To check, start by asking how the wheels were made. Alloy forgings (forged wheel) the most powerful and most expensive. Pressure cast wheels are also sufficient, in addition to a stronger alloy wheels are also lighter than the print (cast wheel). This last alloy is made by flowing molten metal into molds.
After that check also his bolt pattern, does not fit with those of your car. So forget about the wheel-pit yearning heart that holes not match. Sellers may offer some kind of adapter that can outsmart the holes that do not fit this. Be careful, this second solution because this adapter will increase the tension in the bolts may loose when driving. Make sure the tires have offset the after-specification cars. Tire tread also peered stretchy whether grind liang ban.
Choosing modifier
Now check modifier that will change the tire. Choose which specialize in plus-sizing. Choosing an incompetent shop tire and wheel damage risk.
Make sure the warranty if not satisfied or no damage as the tire grinding wheel or speedometer screw hole.
Workshop is also equipped with a wheel aligned to prevent early tire wear. Similarly, the ability to adjust suspension system that must adapt to new legs
Water coolant is not replaced for a long time, the color of water in the reservoir will change from translucent green to brown and slightly turbid. What’s up? Her answers.
Engine coolant is not good used condition and began to cause rust in the coolant system. The solution must be drained and replaced with new ones. If allowed, the rust will spread to the cooling system and engine, the cost of the repairs made perforated bags.
Workshops are usually recommended engine coolant should be replaced every 2-3 years, although some are able to five years. Engine coolant is a mixture of water danethylene glycol. These chemicals are functioning so that coolant does not freeze, preventing the boiling water (boiling point reached 130 C) so as not to overheat quickly, and with other additives to prevent rust.
Engine coolant must also match the raw materials were highly diverse cooling systems, plus be able to transfer heat efficiently, prevent corrosion and provide lubrication to water pump baffle-insulator. When conditions are good, the color green.
Engine cooling system is built from a series of complex components and materials. Aluminum, cast iron, steel, stainless steel, copper, brass, rubber and plastics, is a constituent.
When two different types of metals contact with each other through the intermediary fluid will behave like battery acid, an electron-proton exchange. This is what triggers metal corrosion. Replacing the engine coolant on a regular basis to prevent excessive formation of acid in the engine cooling system while helping to reduce corrosion.
Ethylene glycol is a toxic chemical compounds. Just a little swallowed, can kill pets. Therefore suggested to replace the engine coolant in the workshop. Workshops will remove the old engine coolant, clean the engine cooling system and fill the new coolant.
In developed countries, many workshops have engine coolant recycling system. In this system, water is separated and channeled out, while its chemical compounds reprocessed.
Routine maintenance becomes an easy way to treat the cooling system. The simplest way, check the height of the liquid with a view of the tank. If less than the minimum limit, add a little water to exceed the minimum limit. Few months, attention radioator rubber cap. If damaged, replace it just take cheap investment for an expensive machine.
For the users of motor vehicles, the brake function is essential and not negotiable. Brakes are the most important safety component for the needs of motorists. For that, the condition of the brakes must always work perfectly, so that we avoid the incident “brake relieved” that eventually makes disastrous. Maintaining and improving the brakes are actually more modest than the engine or electrical system. There are several things that need to be taken by the driver to brake the car working properly:
- Brake shoe or brake.
To know the condition of the brake lining can be done by running the car at low speed while pressing the brake pedal and a half. Open the window and pay close attention friction voice. Both cars use the system disc brakes (disc) or drums will be issued a metal scraping sound when the brake has been exhausted. When that happens, replace the brake immediately with new products that manufacturers are encouraged to get maximum braking. Because, when the brake is still left plugged up, can cause abrasion on the wall above the disc or drum. If you already eroded, of course, costs will be far more expensive.
- Tromol (drums).
Currently there are many cars that use tromol or drum brake system. When rarely cleaned, much less often through a puddle of water, be easy on the brakes Tromol rusting. Immediately clean the rust that is on the dust cover (the dust cover) with fine sandpaper. Clean up all traces of rust remaining on the brake with the same sandpaper. Then coat of lubricant on the parts that have friction. Be careful when installing the brake circuit back or ask for your trust to do this workshop. When you are replacing it, try to walk slowly to reexamine the accuracy of the brake job.
- Erosion of discs and drums.
When abrasion disc or drum already occurred due to brake that has been discharged, you can bring your car to the turner. Just need to considered thoroughly to determine if it needs new turner returned or replaced. Measurement error on turning could be fatal, because the brakes may not work optimally.
- Brake fluid.
Brake fluid is like the heart of the braking system. For that volume of brake fluid in the master brake should always be on a level that is determined. To determine the appropriate amount of brake fluid, can be seen at the height of the control line in the brake fluid bottle.
- Master brake.
Braking system or not less than the maximum grip could result from the ineffectiveness of the master brake performance. Usually caused by brake fluid pressure in the brake master reduced. To restore these pressures can be achieved by rearranging the wind pressure in the brake master. For that, prepare to open the bolt wrenches his master cylinders. Before the bolts are opened, ask your partner to help shake up the brake pedal. When stepping repeatedly on the brake pedal under, ask your partner to hold some ground, while you loosen the master cylinder bolts. In this way the brake fluid will shine and you must immediately mengencangkannya bolt it back quickly. Ask your friend to repeat a foothold on the brake pedal. If the footing at the end was not too deep, then the improvement you make is correct.
- Handbrake.
Perform inspections on handbrake cable (handbrake). In serrations handbrake, you can moisten it with lubricating gel or grease (fat). While the cord itself can be smeared with lubricating oil. Check the length of the cord level through Handbrake lever. If the pull is too high, you can reduce it through bolts controller. Handbrake lever repeatedly for lubricants and lubricant gel evenly. When you pull the lever handbrake has been short, but still less good grip on the brake, it means that the brake was thirsty and asked to be replaced.
How much of our attention on the vehicle that we use every day? Often we ignore regular maintenance on our cars so that its condition remains excellent. Maybe this is trivial, but if not carried out could cause a bigger problem and requires expensive repair costs.
Car components have an age or lifetime and it can be extended with an easy and inexpensive maintenance. Here are the steps that can be done to prevent damage before their time.
- Before you turn off the engine, reduce the volume and turn off the vehicle’s audio system. With the machine shut off the audio before, at least the audio system does not store electricity. If the remains are still stored electrical current, voltage spikes occur is feared that resulted in an audio system become damaged.
- Straighten your car tires when parking before the machine off. In quiet conditions and wheel deflected, then the engine rpm will go up if the car back is turned. Because, power steering designed to work in a state is not straight. When the steering wheel straight, the engine will reach the round of stationary and power steering are not working fully. Thus, power steering components including the oil will remain durable.
- Turn off air conditioner before the engine is turned off first. This allows bearings or wheel bearings and some components of the AC compressor will live long. Therefore, these components do not stop abruptly when its round was high.
- For turbo-engined car, leave the engine to shut down for a moment before. When stationary engines, bearings or bearing lubrication flow turbo in a stable condition. So that conditions would be more durable bearings considering the performance is strongly influenced bearing turbo.
- Check tire pressure frequently. Lack of wind pressure can make the surface uneven tire wear. To be more perfect, you should do periodically tire rotation every 10,000 km or six months.
- Prevent windshield when the car parked in the blistering. You can use cardboard, newspaper, or cloth to cover the windshield so that ultraviolet rays from the sun does not enter into the cabin. UV rays can fade fabrics made of foam seat cushions and become brittle.
- Avoid high-speed hit the hole. If it is too often forced, the age of suspension and tires will be broken.
- Do not let the engine speed is too high. When you transmit your car manual, gear position to immediately move the lower positions. In addition to keeping the engine does not overheat and remain durable, as well as fuel consumption becomes more economical.
- Perform routine inspections according to the official repair shop service manual. Make sure the condition of air filters, radiators, spark plugs, battery until the water in perfect condition.
- Always use engine oil derived from synthetic raw materials that are specifically formulated with high quality additives, so it can provide better benefits than mineral lubricating oil. The oil was shown to increase resistance to heat engines, reducing the friction between the engine and stabilize the rate of oxidation.
For diesel-engined car, use oils that contain high-tech additives capable of controlling the oxidation and control of soot well, thus providing effective protection against piston deposit formation as a result of high temperature, wear and tear, corrosion and foaming. Thus, your machine will be maintained in a durable.
“Paradigm has changed. The smaller the engine capacity, “said Fred Becker, Director of Sales Engineering Concepts NREC, a company turbocharger producers from the United States, at SAE World Congress in Detroit last week.
However, the performance is not sacrificed. “In fact, the more intense, more efficient, and exhaust gas emissions are also so low. The car was driven by steady on a variety of conditions, “he added.
Actually, the trend has been underway since last few years. For example Volkswagen, which developed TSI engine. Although the 1.4-liter engine capacity, ability to match the 2.0-liter engine. VW engines have been used on products sold in Indonesia, the Touran MPV.
Gasoline engine-now-especially great because the more applications are combined with direct injection technology petrol or gasoline direct injection (GDI or DI) and the turbocharger. Especially for the turbo, this system does not only work on medium and high speed, but starting from the start. Turbochargers also no longer owned a large capacity machine, but also a small engine, below 1.5 liters.
Noise
In addition to boosting performance machines that are more efficient, development by turbocharger manufacturers is to reduce the noise caused by this device. For that, the engineer who specializes in automotive turbochargers special-application re-analyzing and designing turbo subcomponents, such as shape, angle, and the size of the fan leaf (blade-blade). Result, the ability of the turbocharger is now more intense.
In addition, because many companies are interested in automotive component suppliers producing turbochargers, new ideas emerged. For example, designing a turbocharger with a miniature model of water cleanup pumps in nuclear reactors.
There also are making impellers (blade-blade) as a hydroelectric turbine (power plant) is safe through the fish. Some are made to replace the axial fan tail rotor helicopter model. In fact, the NREC has managed to create a highly efficient turbocharger, capable of reducing NOx, and worked in the radial.
Recovering energy
“No less attractive because of design and engineering knowledge continue to grow. Turbochargers are designed specifically for current generation gasoline and diesel engines, “said Becker. Therefore, the upcoming turbocharger designed for smaller engine capacity and number of cylinders a little, for example, four, three, or even two cylinders. “In fact, had anyone have an idea to unite the turbo unit with EGR (exhaust gas recirculation),” Becker beber.
During this time, the development of automotive turbochargers on slow assessed. The reason is, the added value obtained from the turbocharger a bit.
“In order to obtain greater value added, research is now focused on the turbo impeller aerodynamics,” he said. He added, later not only to boost turbocharger (boost) power of the engine, but also to restore or recover energy.
