JohnsonsEvilTwin wrote:Is his reasoning of higher costs for there being 6 instead of 4 cylinders, sound?
I ask because a F20C Honda engine with 4 cylinders costs a bomb to produce, more than most V6's and even some V8's.
Surely if you had a deicated team, the only extra expense would be material(minor), so why even mention it?
Political?
Everything else being equal, a six cylinder engine cost more to make than a four cylinder engine and a V engine is more expensive to make than an inline engine.
To produce one piston for a six cylinder engine cost almost as much as producing one piston for a four cylinder engine. Since the six cylinder engine requires 50% more pistons the costs per piston will be slightly lower due to the higher volume (the cost of for instance the forging tool will shared by the larger number of pistons), but the total costs are higher. The same goes for conrods, piston pins, valves, fuel injectors and so on. If there's an external supplier the cost per part can even be identical regardless ov volume, which increase the costs for the six cylinder engine.
A V engine is more expensive to make since it has two different cylinder head castings, four camshafts and a more complex camshaft drive.
And no, the extra cost is not only material but mostly in the number of hours required to make the engine.