There are many factors that directly affect the longevity of disc rotors and the safety of the driver when using a high-performance street vehicle on a race track.
In most cases DTV is the result of run out in the disc rotor. The rotor friction surface oscillates in and out causing the brake pad to wear the high points of the disc resulting in a thickness variation around the rotor.
Over tightening of wheel lug nuts can distort the disc rotor resulting in uneven rotor wear and eventually disc thickness variation DTV.
Friction material deposits are a common cause of steering wheel vibration when braking. this form of brake shudder is the result of intermittent grabbing and releasing of the brake pads on the disc rotor surface. Brake shudder due to friction material deposits is frequently mistaken for disc thickness variation (DTV) or the common industry term warped discs.
Disc Thickness Variation, DTV is a variation in thickness of the disc rotor braking surfaces as it rotates on the axle. The hydraulic pressure behind the caliper pistons force the brake pad to maintain consistent load on the rotor surface. When the thickness of the disc rotor varies by as little as 20 microns, the pads oscillate back and forth causing a pulsation in the hydraulic circuit back to the brake pedal.
Remind your customers of the importance of regular brake inspections. Most drivers will only have their brakes inspected when they run into a problem; hence many rotors, pads and other components are kept beyond their proper and safe use ‐ by dates.
There is much controversy over when to machine the rotors. Some technicians are of the opinion that rotors should be machined any time the pads are replaced.
Cleaning a disc rotor correctly will often eliminate any issues with squeal, runout (DTV) and pad contamination. Most disc rotors have a protective coating applied post production to avoid any corrosion during storage.
The following steps are recommended to ensure the best possible results after fitting a hat type disc rotor…
Australian Standard AS3617‐1997 4.3 (b)(iii) ‐ If after machining the brake disc measures on or below the minimum thickness specified by the vehicle manufacturer, the brake disc shall be replaced.
DISC MINIMUM THICKNESS CHART DOWNLOAD
Both disc rotors and brake pads are manufactured to exacting tolerances so why bed them in? Regardless of material chemistry, the two mating brake components made from Iron and friction compounds must engage at a molecular level to cause the resistance that we know as friction.
Does the heat paint return to its original colour? The thermo graphic heat paint used in DBA Performance 4000 and 5000 series disc rotors has been developed to measure the actual bulk temperature of the disc when operating at the most extreme condition.
Choosing the correct disc brake setup for a fun day at the track can often be confusing and expensive if you use a product not fit for the purpose. The aftermarket disc brake industry is very competitive and full of confusing sales hype and marketing to attract the buyer.
ABS Anti-lock Braking System; Typically, the ABS system consists of an electronic control unit (ECU), four-wheel speed sensors and a hydraulic valve fitted in the circuit
There are many factors that directly affect the longevity of disc rotors and the safety of the driver when using a high-performance street vehicle on a race track.
Does the heat paint return to its original colour? The thermo graphic heat paint used in DBA Performance 4000 and 5000 series disc rotors has been developed to measure the actual bulk temperature of the disc when operating at the most extreme condition.
Choosing the correct disc brake setup for a fun day at the track can often be confusing and expensive if you use a product not fit for the purpose. The aftermarket disc brake industry is very competitive and full of confusing sales hype and marketing to attract the buyer.
ABS Anti-lock Braking System; Typically, the ABS system consists of an electronic control unit (ECU), four-wheel speed sensors and a hydraulic valve fitted in the circuit
There are many factors that directly affect the longevity of disc rotors and the safety of the driver when using a high-performance street vehicle on a race track.
There are many factors that directly affect the longevity of disc rotors and the safety of the driver when using a high-performance street vehicle on a race track.
There is much controversy over when to machine the rotors. Some technicians are of the opinion that rotors should be machined any time the pads are replaced.
Cleaning a disc rotor correctly will often eliminate any issues with squeal, runout (DTV) and pad contamination. Most disc rotors have a protective coating applied post production to avoid any corrosion during storage.
The following steps are recommended to ensure the best possible results after fitting a hat type disc rotor…
Australian Standard AS3617‐1997 4.3 (b)(iii) ‐ If after machining the brake disc measures on or below the minimum thickness specified by the vehicle manufacturer, the brake disc shall be replaced.
DISC MINIMUM THICKNESS CHART DOWNLOAD
Both disc rotors and brake pads are manufactured to exacting tolerances so why bed them in? Regardless of material chemistry, the two mating brake components made from Iron and friction compounds must engage at a molecular level to cause the resistance that we know as friction.
There are many factors that directly affect the longevity of disc rotors and the safety of the driver when using a high-performance street vehicle on a race track.
In most cases DTV is the result of run out in the disc rotor. The rotor friction surface oscillates in and out causing the brake pad to wear the high points of the disc resulting in a thickness variation around the rotor.
Over tightening of wheel lug nuts can distort the disc rotor resulting in uneven rotor wear and eventually disc thickness variation DTV.
Friction material deposits are a common cause of steering wheel vibration when braking. this form of brake shudder is the result of intermittent grabbing and releasing of the brake pads on the disc rotor surface. Brake shudder due to friction material deposits is frequently mistaken for disc thickness variation (DTV) or the common industry term warped discs.
Disc Thickness Variation, DTV is a variation in thickness of the disc rotor braking surfaces as it rotates on the axle. The hydraulic pressure behind the caliper pistons force the brake pad to maintain consistent load on the rotor surface. When the thickness of the disc rotor varies by as little as 20 microns, the pads oscillate back and forth causing a pulsation in the hydraulic circuit back to the brake pedal.
Remind your customers of the importance of regular brake inspections. Most drivers will only have their brakes inspected when they run into a problem; hence many rotors, pads and other components are kept beyond their proper and safe use ‐ by dates.
