Key elements include: - Aluminium block with built - in reinforcements High - flow intake ports and high - speed, high -
lift valvetrain to enable high engine speed and power Compact intake fuel surge tank to increase engine response Oil scavenge pump, to ensure stable oil supply in even in high G - force bends Liquid - cooled oil cooler for more efficient temperature control during high - load driving Weight - saving hollow camshafts, which carry oil to the cylinder heads D - 4S (Direct - injection 4 - stroke gasoline engine Superior version), combining direct and port injection Electrically - driven VVT - iE on intake, with mechanical inlet and
hydraulic outlet valves