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Old 07-30-2014, 05:01 PM   #1
Anthony @ LG Motorsports
 
Drives: 1994 1LE / 2006 Z51 Corvette
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Cobalt Friction Technologies, the ULTIMATE in brake pads!

Looking for new brake pads for the track and are not sure of what to get?

The decades of racing that we have done, many pad companies have been through our doors and on our race cars. There has never been a pad company that has held up this long on our cars, nor taken over the paddocks in more pro ranked racing series than Cobalt. Not only will you find them on your local regional racers, but they are also stopping most of the field in Indy, Indy lights, ALMS, IMSA, GrandAm, and SCCA.

We have made fitments for all OEM calipers from the C5, C6, C6Z, and the new C7 including many popular BBK's like StopTech, AP, and Brembo.

Have a question on what pad compound might be right for you? Give us a ring here at the shop and we can go through the different options. Below are the three most popular compounds for the cars and what we typically carry on the shelf.

Not only is the stopping power unreal with them, they are one of the very few race pads that will still safely stop the car when the brakes are 100% cold, making them great for those that want to install the night before and drive the car to the track.

Wear rates at temperature, again one of the best in the business. Rotor life is very gentle so you can be assured you will not be going through pads and rotors every time you hit the track


Cobalt XR1 is an extremely high torque material with an aggressive initial bite and medium-high, linear rising torque curve. Excellent friction stability and consistency coupled with very good modulation, threshold control and release characteristics over the industry's broadest operating temperature range. The XR1 material has unmatched disc life and finish versus any other competing friction material of comparable torque. Well-suited for a wide range of platforms, including those with active aerodynamic profiles as well as limited downforce applications, and/or ABS-equipped as well as non-ABS vehicles, due to the direct line pressure to generated torque relationship.

Cobalt XR2 is a high torque material featuring an initial bite that is 8-10% lower than XR1, but with the same controlled transition to a linear, rising torque curve. Improved modulation, threshold control and release characteristics make the XR2 particularly well-suited for chassis and tire combinations which do not respond well to excessive initial brake energy, but still require a high average torque level. Similarly, vehicles normally equipped with XR1 can move directly to the XR2 when low-grip conditions present themselves unexpectedly (e.g. qualifying in the dry, but rain/wet conditions on race day) without sacrificing or experiencing a change in pedal feel, consistency, or brake capacity.

Cobalt XR3 is a versatile, medium-high torque material with a solid initial bite and a slightly rising torque curve. Unsurpassed cold performance, torque stability, consistency and modulation/release for this level of friction make the XR3 an ideal compound for Club Racing and Track Day/HPDE customers, particular in moderate to lower inertia vehicles. Also recommended for rear-axle use on vehicles over 2800lbs, delivering optimal straight-line braking performance, stability and controlled rotation while trailbraking.




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Old 07-30-2014, 05:10 PM   #2
130R
 
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What are the operating temperature ranges for each compound?
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Old 07-31-2014, 09:18 AM   #3
Anthony @ LG Motorsports
 
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Quote:
Originally Posted by 130R View Post
What are the operating temperature ranges for each compound?
I wish there was a simple answer to that question....and there is and there isn't.


You will see many companies say their pads run 200-900, or 400-1400 or similar ranges.

With Cobalt pads it is a little different. All of their pads will work from an ambient temp and go up from there, but what is extremely important is how does the pad feel while it is on track and how will it bite on each corner. So what you need to know is from what range does the pad act 'normal' on track and have a ramp up in braking torque.

On track your rotor temps should not vary much between say 400-600 degree's between corners. So each time you hit the brakes you would like the torque curve of the pad to look pretty much the same, or start from the same point so you know how the car is going to stop going in to the corner (inverse of how the car would pull out of the corner at a given RPM range).

That being said, Cobalt has one of the widest ranges of initial bite characteristics of any pad out there ranging from almost room temp to 700-800 degrees.

On the high end of the pads, again you might see people say they are good til 900, 1100, or say 1600 degrees. We have seen rotor temps approaching 1900 degrees and the pads are still within their 'normal' limits as far as torque goes. What will change if you over heat the pads is the wear rate of the pad will increase. If you run into an issue of pad wear issues, temps are one of the first things I would ask...and this would hold true no matter if it is Cobalt or another pad manufacturer. With some other pads you might run into a fad, or "warping" issue far before you would see wear issues but that would hold true on all pads.



Sorry for the long winded reply, but I hope that makes sense.
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Old 08-01-2014, 11:07 AM   #4
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There is NO difference in the operating temperature range of a CF XR1, 2 or 3.
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