GhostF1 wrote: ↑
Tue Dec 05, 2017 9:28 pm
Also, because Ferrari and Renault share pretty much the same layout, which are externally bigger than Honda and Merc and with Merc increasing weight this year, it probably isn't far from the truth to assume Honda has the lightest and most compact PU of the field.
I can't see how having the compressor at the front makes for a more compact engine than having it at the rear.
Mercedes have a very large compressor, which is thin, which would help with the compactness. But the compressor inlet is at the front of the engine, so the ducting to feed that has to be at the front as well.
Renault and Ferrari duct the air into the compressor at the rear, possibly between the cylinder banks.
Honda's original design, with the compressor in the vee, would have been more compact.
Both Ferrari and Mercedes added around 5kg to their engines this year, to cope with the extra stress brought by teh new chassis regulations. Not sure about Renault.