Monday, May 19, 2008

Modify your brakes

Brakes can be modified. Since they are part of going fast, you must always ensure that they are able to stop as fast. Your brakes work with a friction pad that press agains a disc. Such friction converts the momentum of the car into heat which is then dissipated over the brake disc, resulting to slowing down of your car. Heat is one of the big factors for heavy braking especially on race cars, which must be prepped to cope with the high heat demands on the braking system.

As you step down the brake pedal, engine power is used to amplify the pressure of your foot, which decreases the effort needed. Such pressure is transferred to the friction pads through a brake fluid inside the tube. The brake pad end is subjected to high temperatures that’s why the fluid itself can get very hot. Such fluid cannot be simply pressurized, meaning, the effect of braking just passes along the tube almost instantly. A cable stretches a little and needs constant adjusting, as most handbrakes use a cable system that are more susceptible to the effects of stretching and heat.

The problem with brake fluids is about reducing the effectiveness of the transference process that is also at high temperatures. Under such condition, they can boil and so bubbles are produced in the brake fluid, creating spongy effect at least or at worst can completely prevent the brake from having any effect. The dissipated heat from the brake pad makes the disc vented. This disc has a ventral channel that increases the surface to air ratio of the disc. This create better and faster cooling then. The drilled discs can also increase the air ratio and along with grooves, help to prevent a gas build up between the pad and the disc, keeping the pads clean and sharp. Bigger discs can provide better cooling but they may require a different design of alloy wheel.

When selecting a brake pad, you should be wise and careful of certain factors. The higher the friction, the better. Most racing pads have special construction, which involves high firction compound that works at much higher temperatures. A true racing pad can effectively work when it gets hot, since it renders race spec pads useless for the road where braking most often happens on cold pads. Fast road pads are great compromise as some performance pads have the added benefit of producing nearly zero brake dust, which can even last longer than the standard pads.

If you are into upgrading your brakes, you need to do a lot of preparation. Key areas for attention include fitting of bigger discs. Larger disc will provide bigger friction area and will therefore dissipate more heat. You will notice more feel that is easier to detect the point of lock up with a large disc conversion kit. Brake calipers and pistons must be given much attention. More pistons equal a greater clamping force and allow the use of larger pads.

Before getting into the road, you must also prepare your brakes into particular conditions like driving along flood.. Under such situation, applying brakes is surely hard. You should apply brakes to dissipate the water and grease that get on them, which will dramatically improve the chances of stopping during emergency.

The brake fluid must also be checked more frequently. It must be changed bi-annually or annually, depending on your driving style and the recommended service interval. Such fluid must be properly checked by an expert for its boiling point. This will give an idea of degradation. Synthetic brake fluids are not hygroscopic, as they have high boiling points.

Keep on improving your brakes otherwise, you will suffer from inconvenience. Nonetheless, make sure that you will observe proper procedures when doing so. If you are not confident enough on doing it, make sure that you will have the task done by a qualified auto mechanic.

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