Cosworth built a 250-hp three-cylinder engineDecember 13, 2018
Cosworth was able to build an atmospheric three-cylinder engine with a power of 250 horsepower, which fits into the current standards for harmful emissions. The unit was part of a project to create a record 6.5 V12 for the Aston Martin Valkyrie super hybrid.
According to Cosworth managing director Bruce Wood, for a start, engineers had to assemble a quarter of the original Valkyrie engine to test its basic design. They took as the basis the four-cylinder unit, for which they made a new cylinder head – an exact copy of the three cylinders of the final V12. It took about five months to prepare the motor for the first launch.
The decision to test the first three-cylinder engine was made because of the timing. It would take 12-13 months to build a V12 from scratch, and only after that it would be possible to find out if the engineers met the parameters set by Aston. The transition to the three cylinders allowed the Cosworth team to reproduce each element of a quarter of the original unit and to verify in advance its efficiency and power characteristics.
Presented on the eve of the 6.5 V12 with the angle of collapse of the blocks of 65 degrees gives 1014 forces and 740 Nm of torque. The unit is able to unwind up to 11,100 revolutions per minute, and its mass is 206 kilograms. In Cosworth calculated: if you scale the formula 3.0 V10 to 6.5 liters, its weight will be 210 kilograms.