Pad Characteristics include a very high friction pad with aggressive initial response.
Immediate low temperature response is noted.
Low wear rate during sustained high heat braking is observed.
Predictable and linear response with excellent modulation is provided.
High heat fade resistance is present.
Pad Applications are for racing only - not for street use.
Road course, oval pavement, dirt all classes, and off road are included.
Rotor Material options are steel, stainless steel, iron, super alloy, and titanium.
A very high friction pad with aggressive initial response is noted.
Immediate low temperature response is present.
Low wear rate during sustained high heat braking is observed.
Predictable and linear response with excellent modulation is provided.
High heat fade resistance is present.
Racing only - not for street use is specified.
Road course, oval pavement, dirt all classes, and off road are included.
Steel, stainless steel, iron, super alloy, and titanium are rotor material options.
The above friction data (μ) was recorded through braking cycles from 95 mph to 40 mph at a 0.5g deceleration.
Snubs were consecutively done until rotor temperature reached 1300°F.
This graph represents average data and is for general trend visualizations only comparing Wilwood pads.
Chart data should not be used in comparison with other manufacturer's data.
Test conditions, variables, and environment can affect test results.
Temperature range and overall friction value are the primary considerations for pad selection.
The pads must maintain the proper amount of friction for stopping power within the temperatures that will be realized on the track.
Overall wear rate must also be considered.
For most asphalt and road race applications, compounds in the high-temperature range over 1000°F are usually necessary.
Dirt track, drag race, and street performance applications usually operate at temperatures between 500° and 1000°F.
Keep in mind that these are general ranges and not absolute values.
Many factors and unforeseen influences can affect brake temperatures.
The best indicator for pad selection will always be on-track performance.
If pad fade (friction loss) due to overheating occurs, improved cooling, a heavier rotor, or a higher temperature range pad may become necessary.
Grand National GN6R calipers bring current state-of-the-art design, materials, and manufacturing technology to this long-standing icon in the Wilwood caliper line.
With a high-strength forged aluminum body in either hard-anodized or Quick-Silver nickel plate finish, it is compatible with rotors from 1.25” to 1.38” thickness and diameters from 12.19” to 13.06”.
Two body widths are available for use with .80” (20.3) or .99” (25.0) thick pads.
Stainless steel pistons are included in base model GN6R anodized calipers and Thermlock pistons in the GN6R/ST Quick-Silver nickel plate models.
It uses 3.5” or 6.0” center mount bracket kits to replace all previous Grand National caliper models.
