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AP Racing by Essex Radi-CAL Competition Brake Kits have become a staple among the fastest Corvette owners in the world. The Radi-CAL has won at all levels on Corvettes, including numerous Le Mans titles. Now we're bringing this incredible technology to the 2020 Corvette!
First out of the gates are two new front brake systems. If you're running stock wheels, our CP9660 kit will clear them without a spacer. If you're running aftermarket wheels or stock wheels with spacers, our CP9668 kit provides pads that are a full inch thick!
To change pads on the stock calipers, the caliper needs to be removed, or special tools are required. With the AP Racing calipers, swapping pads can be accomplished in seconds via two hex head bolts, or just squeeze your fingers to open up the CP9668 ... no tools required!
If you plan to pound your new C8 on the track, your stock aluminum pistons aren't the best choice for keeping heat out of your brake fluid, and the dust boots will be toast. The AP Radi-CAL has no dust boots, and has ventilated stainless steel pistons that will keep your fluid running cool. They also have anti-knockback springs installed as standard to keep your pedal high and hard on any track layout.
"Radi-CAL" is a blanket term used to describe AP Racing's patented asymmetrical brake caliper design. Radi-Cal technology is grounded in Computer Aided Design (CAD) and Finite Element Analysis (FEA), and allows for organic, alien-looking designs that are a radical departure from conventional caliper designs of the past. Radi-CAL's are widely considered the pinnacle of current brake caliper technology. Since their inception in 2007, these revolutionary calipers have amassed a lengthy string of race victories at all levels of professional motorsport, while redefining brake performance expectations.
The key benefits of the Radi-CAL design:
CP9660 Advantages Over OEM Brake System:
Package Includes:
Features:
First out of the gates are two new front brake systems. If you're running stock wheels, our CP9660 kit will clear them without a spacer. If you're running aftermarket wheels or stock wheels with spacers, our CP9668 kit provides pads that are a full inch thick!
To change pads on the stock calipers, the caliper needs to be removed, or special tools are required. With the AP Racing calipers, swapping pads can be accomplished in seconds via two hex head bolts, or just squeeze your fingers to open up the CP9668 ... no tools required!
If you plan to pound your new C8 on the track, your stock aluminum pistons aren't the best choice for keeping heat out of your brake fluid, and the dust boots will be toast. The AP Radi-CAL has no dust boots, and has ventilated stainless steel pistons that will keep your fluid running cool. They also have anti-knockback springs installed as standard to keep your pedal high and hard on any track layout.
"Radi-CAL" is a blanket term used to describe AP Racing's patented asymmetrical brake caliper design. Radi-Cal technology is grounded in Computer Aided Design (CAD) and Finite Element Analysis (FEA), and allows for organic, alien-looking designs that are a radical departure from conventional caliper designs of the past. Radi-CAL's are widely considered the pinnacle of current brake caliper technology. Since their inception in 2007, these revolutionary calipers have amassed a lengthy string of race victories at all levels of professional motorsport, while redefining brake performance expectations.
The key benefits of the Radi-CAL design:
- Massive Stiffness Increase- A 30+ % increase in both static and dynamic stiffness vs. conventional calipers allows for far less deflection under load, which means superior pedal feel & modulation, more even pad wear, and longer caliper service life.
- Considerable Mass Reduction- Removing all extraneous caliper mass lowers the caliper weight, despite the huge stiffness increases.
- Optimized Airflow- Air moves around and through the caliper more efficiently, providing superior heat evacuation and cooling.
- Efficient Packaging- The asymmetric caliper profile and internal fluid porting allows the caliper to fit into tighter spaces.
CP9660 Advantages Over OEM Brake System:
- Approximately 14 lbs. of unsprung weight reduction from the nose of the car
- AP Racing Radi-CAL calipers are the stiffest, lightest, and most technologically advanced calipers available at any price
- CP9660 calipers use a 18mm thick, commonly available brake pad shape
- Ventilated, domed back, stainless steel pistons keep heat out of the brake fluid and provide an ultra-firm pedal
- Mitigation of pad knockback via anti-knockback springs behind the caliper pistons
- Anodized caliper finish that is resistant to wear and deterioration at elevated temperatures
- Stainless steel caliper hardware for a long caliper service life under frequent pad change conditions
- High temperature, low drag seals that will hold up to track temps= less rebuilding and longer service life
- No dust boots to burn up
- Simple pad change with two bolts or quick-change spring clip, no caliper removal required
- Lifetime professional caliper rebuilding support by Essex (at a fee) - pull off your calipers, send them to us, we clean, inspect, and rebuild them
- Available disc burnishing service ensures that your kit arrives ready to be installed and driven hard immediately
- Championship winning, 84 vane, fully floating, AP Racing J Hook racing discs with 12 attachment points to hat
- Anti-knockback/anti-rattle disc attachment hardware
- Replacement iron disc rings available at an extremely competitive replacement price
- Disc metallurgy specifically designed to handle the temps typically seen on track offer a long service life
- Highest quality, Spiegler stainless steel brake line with clear sheath that reduces compliance over OEM rubber design
Package Includes:
- One pair AP Racing CP9660 Radi-CAL Pro5000R six piston calipers
- One pair 372x34mm AP Racing CP6084, 84 vane, J Hook racing discs, with fully floating 6061 hard anodized aluminum hats, and attachment hardware
- One pair caliper mounting brackets and hardware
- One pair Spiegler Stainless Steel Brake Lines with abrasion resistant coating
- Installation Guide
- 18mm thick Brake pads are NOT included with our system. Racing brake pads are a highly personal choice. Many manufacturers include a set of inexpensive, low quality pads with their brake kits. Rather than artificially inflating the price of our system with a set of pads you probably don't want anyway, we've decided to remove the cost from our system and allow our customers to choose the pads that best suit their needs/wants. When purchasing our kit, you are able to choose one set of front pads at a substantial discount vs. the retail price. Please use the drop-down menu to select your pads.
- Pad Tension Clips (frequently referred to as anti-rattle clips) are NOT included with our Competition Kits, but we do offer them as an option if you're concerned about NVH. One of the great benefits of the AP Racing calipers in our system is that they are designed to accommodate pads from a wide range of manufacturers. Each manufacturer builds their pads with specifications that are slightly different. As such, pads from different manufacturers, or even from different batches, won't always fit in the calipers in exactly the same manner. Some pads are a snug fit, while others may rattle around and produce noise. The Essex Designed Pad Tension Kit is designed to dramatically reduce pad movement inside the caliper, along with just about all resulting noise. Please note that each caliper requires one Pad Tension Kit. If you need enough tension blocks for both of your calipers, you need to order two of these kits!
Features:
- Features AP Racing CP9660 Radi-CAL front calipers
- 372x34mm, 84 vane AP Racing disc
- Saves approximately 14 unsprung lbs. from nose vs. OEM Z51 brakes
- Every component designed to resist the heat of extended track sessions
- Pistons sized properly to allow for integration with OEM master cylinder and ABS system
- Designed to work with OEM rear brakes or our Essex/AP Racing rear BBK
- Chevrolet Corvette C8, Z51 2020
Confirmed stock wheels that fit without a spacer
- Limited stock
- Brake pads are NOT included.
Please note however, that the pad shape we use in our caliper is available in a variety of radial depths (heights), and that Essex recommends the 54mm radial depth version. Another common radial depth in this pad shape is 51mm. The 51mm depth pads will fit into our caliper, but you will be leaving an unswept 'ring' around the disc near the attachment points to the hat (the pad will not hang as low in the caliper). Leaving a portion of the disc face unswept can create a temperature differential across the face of the disc, and doing so could lead to premature disc cracking. - Pad Tension Clips are NOT included
- for Track use
It usually recommended for events lasting less than 45 minutes. Any event lasting more than 45 minutes, we recommend Essex Designed AP Racing Radi-CAL Competition Brake Kit (Front 9668/372mm) Chevrolet Corvette Z51 C8 2020
Proposition 65
⚠ WARNING:
Cancer and Reproductive Harm
https://www.P65Warnings.ca.gov
AP Racing has been part of the automotive industry for more than 50 years. It started back in 1920 by Edward Boughton, Willie Emmott, and Denis Brock. They planned to import parts from the US to help maintain ex-military vehicles that were adapted for civilian use after Worl War 1. They later expanded their business by supplying parts for the British Motor Company.
Throughout the years, AP Racing has provided quality parts and specialized in clutches and brakes systems. Today, AP Racing has become one of the most recognized brands and has been well received by a lot of tuners, racers, and enthusiasts all around the globe.
AP Racing has participated in Motorsport racing and has helped produced race winners. As early as the 1930s they have already supplied parts for race cars in the British GP and have continued its tradition. In fact, it is being used by some of the best racing legends such as Jim Clark in his Lotus.
Continuous InnovationAP Racing has always pushed itself in improving its products to create the best performing product in the market. It has helped jumpstart the development of brakes and clutch technology. The industry has come a long way from the time when brakes were made out of iron to the carbon ceramic composites of today alongside clutches capable of handling over 1000 horsepower.
Purchase AP Racing Products at Vivid RacingWhen it comes to performance brakes and clutches, there are only a few brands that professionals trust and AP Racing is among the top of the list. With products that range from street applications to race-oriented brake and clutch systems, AP has it all. Visit Vivid Racing and check out the list of AP Racing products that would fit your specific needs.
By purchasing this product and opening this box, purchasers expressly acknowledge, understand and agree that they take, select and purchase these brake systems, parts, and equipment from AP Racing R, its affiliates, distributors, and agents (collectively, “AP Racingâ€) “as is†and “with all faults.†The entire risk as to the quality and performance of these brake systems, parts or equipment is with the purchasers. Should the goods prove defective following their purchase, the purchasers assume the entire cost for all necessary servicing or repair or any resulting liability. AP Racing R makes no warranties whatsoever, expressed or implied, oral or written, to purchasers or any users of these products. AP Racing R expressly disclaims any implied warranty of merchantability or warranty of fitness for a particular purpose, including fitness of these systems, parts or equipment for racing.
By purchasing this product and opening this box, purchasers expressly acknowledge that AP Racing R does not make or cause to make any representation or promise to purchasers which relate to the brake systems parts or equipment that becomes part of the basis of the bargain between AP Racing R and purchasers. Purchasers expressly affirm that they are relying upon their own skill and judgment in selecting and purchasing these goods as suitable for purchasers' intended use.
Purchasers understand and agree that no officer, director, salesman, distributor, or agent of AP Racing R has any authority to make any statement contrary to the terms of this disclaimer and agreement. On the contrary, AP Racing R disavows any statement contrary to what is written above.
By purchasing this product and opening this box, purchasers expressly acknowledge that AP Racing R does not make or cause to make any representation or promise to purchasers which relate to the brake systems parts or equipment that becomes part of the basis of the bargain between AP Racing R and purchasers. Purchasers expressly affirm that they are relying upon their own skill and judgment in selecting and purchasing these goods as suitable for purchasers' intended use.
Purchasers understand and agree that no officer, director, salesman, distributor, or agent of AP Racing R has any authority to make any statement contrary to the terms of this disclaimer and agreement. On the contrary, AP Racing R disavows any statement contrary to what is written above.
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