DOWNSIZING ACROSS THE BOARD
This comes as little surprise: Honda’s MGU-K is also very compact. As far as can be ascertained, Renault’s motor-generator unit looks bulkier (compare green-coloured elements).
On the Japanese power unit, the energy recovery system is linked to the crankshaft via a series of gears that, according to some sources, would be at the back of the engine (when most of the other designs have them at the front).
Also visible is the ignition coil rail that is comprised of three coils (one for each cylinder), as well as the FIA-standard mounting points – these are identical on all power units. As a reminder, the ruling body also controls the angle of the vee (90°), the bore (80mm), the stroke (53mm), as well as the crank height (90mm).
