GD Sport Rotors
GD Sport Rotors
EBC manufacture 90% of its rotor range in ISO and TÜV approved facilities in the UK or in Italy, all rotors including GD Sport Rotors are machined and finished in the UK and in the USA. Where castings or finished rotors have been bought in to complement the range, the strictest quality controls you can imagine ensure the safety and quality of the parts we sell. EBC adds value to its products by strictest quality controls and specifications and a 100% run out and dimensional check, plus all USA sport rotors are slotted at the Las Vegas facility of the USA operation. We employ 14 people in our USA rotor machining facility alone and have a bank of 8 HAAS and Feeler CNC machines using the latest CNC controls and tooling for superb accuracy.
EBC Brakes has 14 machining centres in these two countries to manufacture these precision parts. Rotors are made from high quality grey iron to exacting standards and undergo extensive testing and rigorous quality control and are then precision machined to your chosen slot or dimple pattern.
The dimple drilled rotor was invented by EBC back in the 90’s and has been imitated by many because of its ability to offer pad degassing without “Through Drilling” disc or rotor holes which has been shown to promote rotor cracks.
The wide aperture slots on the EBC units actually draw cool air under the brake pad and rotor interface and help cool the temperatures of the pad contact which can shoot up to well over 1000 degrees at the very heart of the brake pad during heavy braking and can cause brake fade or loss of brake effect.
These “Full sweep” slots on the EBC Sport Brake rotor also help remove dirt dust debris and water from the braking area but without doubt the main benefit of such sport rotors is their ability to maintain a flat and parallel pad surface throughout the lifetime of the brake pad set.
Recent European R90 brake safety legislation insists on a very aggressive stress test of all replacement brake rotors. EBC rotors have passed this test and in the case of the GD design, the brakes were shown to run 100 degrees F cooler than non slotted rotors proving our long made claims that the GD version rotors run COOLER.
- Direction of Rotation of EBC GD Disc Rotorscontent
EBC GD Sport Rotors are directional “LEFT and RIGHT” which is nearside and offside of your vehicle. The sweeping grooves and spotted pattern should be pointing to the rear of the vehicle.
One point to consider before making your choice of sport rotor is the air noise that can be noticed with sport rotors. With all slotted rotors there will be an increase in air noise as the rotor passes beneath the pads under normal driving and braking. Some people like this kind of “Turbo” sound and others do not.
For this reason EBC produce two ranges of sport rotors, the 3GD or GD series being discussed here are the noisier of the two designs, our sister range the USR sport rotor range is MUCH quieter yet offers similar performance values.
Make your choice before you buy please.
Experience has shown us that on Truck and SUV the GD or 3GD series wind noise is almost unnoticed and on faster and tuned sedans and hot hatches the GD or 3GD series as we call them (they are both exactly the same item) is the preferred choice.
If silent braking with performance on a prestige or quiet car is your target buy then opt for the USR series, shown by clicking this link USR series.
CORRECTING ROTOR DISTORTION, ROTOR MISALIGNMENT AND CURE BRAKE VIBRATION
There are two main reasons for brake vibration. The first is steering geometry issues and the second is installation or hub run-out issues.
GEOMETRY ISSUES – One in seven cars suffers geometry problems during its life that can affect steering and cause brake vibration. These are NOT a product quality issue!!!!!!.These can happen by simply nudging a kerb or by driving over a pothole. EBC is not alone in recognising this problem but is the only brake supplier on the planet prepared to offer diagnosis and a SOLUTION.
INSTALLATION OR HUB RUN-OUT ISSUES – These cause what is known as DTV. The videos below show how to correct for brake vibration caused by DTV (Disc thickness variation). DTV develops in a car after 3000-4000 miles caused by runout built in to the car or due to incorrect alignment of the rotors at install. This is quite a common fault on modern cars and many cars require this at every rotor change. Drivers also confuse hub distortion with a rotor quality issue but in 99% of cases the DTV is a car problem, not a rotor quality problem. You can replace the rotors as many times as you like trying to solve vibration and the problem will only go away for a few thousand miles and then return. This means you have purchased new rotors in good faith but the problem IS NOT SOLVED AND WILL NOT GO AWAY PERMANENTLY until you perform this procedure. After this skimming of the rotor surface you will have smooth brakes , more effective brakes and ZERO vibration. It is even a very worthwhile practice when fitting new rotors to have all four rotors skimmed into perfect alignment on your car with this inexpensive procedure. Rotor distortion due to DTV is very common, in fact ONE IN SEVEN CARS has a steering geometry problem either when it is built NEW or after nudging a kerb or hitting a large pothole (very common after road surface damage after winter snowy periods). Uneducated people still say “My rotors are warped”. Well the engineering facts are ROTORS DO NOT WARP, they are made of cast iron, they are very tough and can be run to red heat and cooled time after time and they will not distort, we do this day in day out on our dynos in the EBC lab. Thats why the whole world still uses cast iron as a vehicle brake rotor material, there has never been anything to beat it and probably never will be. Pro Cut machines WORK ON BOTH PLAIN ROTORS AND EVEN BETTER ON SLOTTED AND DRILLED ROTORS OF ALL TYPES.
READ THIS TEXT ON PAGE 8 OF THIS LINK TO SHOW PROOF THAT PRO CUT APPROVE USE OF ITS MACHINES ON SLOTTED ROTORS
Who are Pro-Cut ????… Pro Cut are a USA based multi national and extremely professional Corporation. Their machines are used and approved by many major car manufacturers and used all over the world to do exactly what they do best, CORRECT for rotor mis-alignment no matter how it arises on a car. You cannot achieve this with any other device.