The Mercedes-AMG GT (C190 / R190) is a sports car produced in coupé and roadster bodystyles by German automobile manufacturer Mercedes-AMG. The car was introduced on 9 September 2014 and was officially unveiled to the public in October 2014 at the Paris Motor Show. After the SLS AMG, it is the second sports car developed entirely in-house by Mercedes-AMG.
The GT uses a front mid-engine, rear-wheel-drive layout, with the engine positioned inside of the vehicle’s wheelbase. The spaceframe chassis and body are made out of aluminium alloys, while the boot lid is made of steel and the bonnet is made of magnesium. The suspension system is a double wishbone unit at the front and rear, with forged aluminium wishbones and hub carriers.
The car is powered by a 4.0-litre M178 twin-turbocharged V8 engine. The engine is in “hot inside V” configuration—with exhaust manifolds and turbochargers inside the cylinder banks to reduce turbo lag—and uses dry-sump lubrication. Power is sent to the rear wheels through a seven-speed AMG SPEEDSHIFT dual-clutch transmission. The GTS variant employs an electronically controlled mechanical limited-slip differential. In a road test executed by Car and Driver, the GTS accelerated from 0–97 km/h (60mph) in 3.0 seconds, completed the quarter mile in 11.2 seconds and attained a top speed of 311 km/h (193 mph) in stock form.
The M178 engine in this variant is tuned to an output of 385 kW (523 PS; 516 hp) and 671 N⋅m (495 lb⋅ft) of torque. The key mechanical differences the GT S gains over the GT include an electronically controlled limited-slip differential, “Race Mode” and “Race Start” mode settings in the AMG Dynamic Select adaptive drivetrain system, AMG Ride Control adaptive suspensive system, an AMG Performance Exhaust System with dynamic flaps, and a lithium-ion battery.
Above you can see the stock vs our stage 2 remap on the Bosch Med17.7.x engine management system.The car arrived with 100 octane fuel and the measurement with the stock software showed 511ps and 749nm.The torque is for sure much more then what Mercedes-Benz is advertising but with a bit less horsepower.
However this was no problem as results vary from dyno to dyno and there is always a slight difference.Our client requested a stage 2 ecu tune with high torque output on our premium 100 octane fuel and the only thing that was not oem was the exhaust system on this gorgeous AMG GTS.
Our result is 601ps and 961nm with a perfect curve and wide powerband. The dynograph is showing the shifted rpm limit on our stage 2 and the maximum torque that comes at 4000rpm.