Sporting the latest AMG SPEEDSHIFT transmission, the 2018 GT R from Mercedes-AMG is going to offer one of the best rides from a sports car ever built. Seeing as every year these transmissions are even further perfected by Mercedes-Benz engineers, the 7-speed dual clutch coming with the 2018 GT R is one of the most exciting things we’re looking forward to on that model.
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It’s arrived, AMG’s latest weapon, the very Green 2018 Mercedes-AMG GT R, designed to go head to head to head with Porsche’s 911 GT3 RS. At its heart is a handcrafted AMG 4.0L V8 Biturbo with output of 577 hp, which is 74 hp more than the previous top-of-the-range engine in the GT S. Peak torque of 516 lb-ft is available between 1,900 and 5,500 rpm.
The increase in performance was achieved with the help of new turbochargers with modified compressor machining, a smaller wastegate and new engine mapping. Boost pressure supplied by the turbochargers has been increased from 17.4 psi on the AMG GT to 19.6 psi. In addition, the exhaust ports have been optimized and the compression ratio modified.
The seven-speed dual-clutch transmission has been extensively revised by AMG, with modified hardware and software to make the transmission even more suitable for the racetrack. First gear in the AMG SPEEDSHIFT DCT 7-speed sports transmission has a longer ratio, while seventh gear and the final drive have shorter ratios to allow for more rapid acceleration. Continue Reading