WilliamsF1 wrote:I would say part or majority is within tHe V, Wat is outside are connectors and link to the Crank
If there are critical components so close to the center of gravity of the engine, they would be more prone to hot spots as cooling shifts as the car is moving. For Honda to solve this, they'll have to find a way to pressurize the cooling system of these components so that it can overcome the centrepidal forces from the car while braking and cornering. This would never become apparent in an engine dyno, of course higher pressure means more material to withstand said pressure and also increases the possibility of failure. I have complete faith Honda can solve this, they have world class engineers around the world, I also think McLaren could help implement a solution.
To make this power unit competitive, McLaren and Honda have to have free transfer of information so that Honda can tailor components to McLaren's requirements. In my opinion, the fact that Honda can manufacture components from ground zero, and can customize any component for specific requirements can only be exploited if Honda knows the exact details of the chassis their power unit is integrated in. Likewise, McLaren needs to know the details of the power unit because the chassis itself has a profound effect on cooling, likewise McLaren's expertise and experience in components can help Honda in their designs. I think both teams stand to benefit in the larger scheme from this partnership.