The twin Garrett chargers In 1990, the engine received injection and 24 valves, and was used, among other things, in the Omega 3000. Lotus took over from here and increased the displacement to 3.6 liters by increasing the stroke from 68.9 mm to 85 mm for the six pistons when they fitted a new crank. The valves were replaced by some new sodium carbide ones. The pistons were replaced at the same time with forged pistons supplied by Mahle, while the connecting rods were something that Lotus itself was responsible for. The compression was lowered, the injection system changed and the engine block itself strengthened. 
Most important of all, however, were the two Garrett T25 turbos that were screwed onto the engine, while the German company Behr was responsible for supplying a large charge air carb. Along with the changes to the chassis and elsewhere, the work was so extensive that the English gave the car a Lotus identification number. Just like all other Lotus models. The Lotus Omega was given the number “Type 104”. When I select first gear in the manual 6-speed gearbox, which incidentally comes from another of GM's gems, the Corvette C4 ZR1, I remember noticing how heavy the clutch is. It is quite heavy, but not difficult to operate. However, the travel is on the long side, but I quickly find the point where the clutch grabs and the Omega starts to move. 
