Discover the latest rally, wrc news
Track-capable Camaro Z/28 Validated at Nürburgring
Chevrolet today revealed a video of the all-new, 2014 Camaro Z/28 lapping Germany’s challenging Nürburgring road course in 7:37.40, a time comparable with some of the world’s most prestigious sports cars.
The Z/28’s lap is four seconds faster than the Camaro ZL1, and beats published times for the Porsche 911 Carrera S and the Lamborghini Murcielago LP640. The Z/28’s lap was completed on less-than-ideal conditions, with damp pavement and pouring rain near the end of the run.
The heart of the Z/28 is the 7.0L LS7 engine. The LS7 uses lightweight, racing-proven, high-performance components, such as titanium intake valves and connecting rods, CNC-ported aluminum cylinder heads and a forged-steel crankshaft to help produce an SAE-certified 505 horsepower (376 kW) and 481 lb-ft of torque (652 Nm). Air-conditioning is available, but only as an option.
A close-ratio six-speed manual transmission is the only transmission offered and power is distributed to the rear wheels via a limited-slip differential featuring a helical gear set, rather than traditional clutch packs. The new design enables the driver to apply more power and get through corners faster, by making the most of the capability of individual-wheel antilock brake function during corner entry braking, mid-corner speed and corner-exit traction.
The team spent a week at the Nürburgring as part of the Z/28’s performance-validation regimen, accumulating a total of 10 hours and nearly 1,000 miles on the track. Each lap took less than eight minutes to complete, despite having to overtake slower traffic at times. These hours are part of the grueling 24-Hour Test, which simulates a full year’s worth of track use of track days or amateur-level competition at the hands of an owner.
The 24-Hour Test is broken into a number of segments over the course of several days – and even at different tracks – to evaluate performance in precisely measured and carefully monitored increments. Crucially, each valid test lap must be run within 2 percent of a target lap speed to count toward the 24-hour total.
The 24-Hour Test was first used in the early 1990s for the fourth-generation Corvette. Back then, the 300-horsepower Corvette was Chevrolet’s most powerful vehicle, and the 24-Hour Test measured 15 channels of data. Today, the 2014 Camaro LS offers a 323-horsepower V-6, while the Camaro Z/28’s racing-proven LS7 7.0L small-block V-8 delivers 505 horsepower, and the 24-Hour Test measures 130 channels of data.
Source, please read more.
Toyota GT86 Racing Car
In 2011, with the unveiling of the Super BRZ Concept STI, Subaru also unveiled their latest entry in the Super GT series’ GT300-category. R&D Sport would develop the BRZ GT300 to replace their Legacy for the 2012 season. The BRZ GT300 does not utilize the production car’s FA20 engine, instead opting for the Legacy’s EJ20 engine.
Toyota, in partnership with Gazoo Racing, announced plans to develop the 86 for motorsport use in multiple disciplines. Toyota and Gazoo will support private teams in the Super Taikyu Endurance Series and All-Japan Rally Championship.[60] Gazoo Racing entered 86s in the 24 Hours Nürburgring, winning their SP3 class in 2012. Privateers Toyota Swiss Racing also claimed the V3 category in the same year.
In the United Kingdom, GPRM is developing a turbocharged version of the 86 for classification in the SRO Group’s GT4 category for use in Europe. The engine developments are being carried out by Nicholson McLaren Engines.
In the United States, Ken Gushi utilized a GPP Scion Racing FR-S built by GReddy Racing for the US Formula Drift championship. The FR-S features a turbocharged EJ25 boxer engine from a Subaru WRX STI produced more than 450 kW (600 bhp). In 2013 the FR-S replaced the Scion tC for the Toyota Pro/Celebrity Race at the Grand Prix of Long Beach. The FR-S’ were production units modified for racing safety and reliability. Nobuhiro Tajima will enter a Toyota 86 silhouette in the Pikes Peak Hill Climb in 2013.
In October 2012, Toyota Racing Development and Gazoo Racing announced a production racing model for the Toyota 86. The 86 Racing adds brake and oil cooler modifications, as well as a 4-point racing harness and rollcage. The stock 86 wheels are replaced by simple steel rims, while the exterior colour was only available in white.
Subaru followed in early 2013 with the BRZ RA Racing, featuring similar modifications. Both cars are only available in the Japanese market, and are eligible for a one-make racing series run by Gazoo Racing. Unlike the Toyota, the BRZ is available in any of the production car’s colours.
