Can increasing the angle of the V layout of an engine increase or decrease the power output?
Increasing the V-angle can cause some small power issues. Mainly, the ‘acoustics’ of the engine are affected which can affect power (lower RPMs). To get round this requires modification to the airbox/exhaust system which can compromise efficiency. Also, I would expect the dry sump oil lubrication system and water pump to have to work harder with a greater angle of V, deducting from the power output. Lets remember Renault abandoned its 111 degree V engine in 2002 because of terrible vibrations that potentially caused casting failures. If you have a risk of a casting failure, then you are likely going to turn down the power to aid reliability. EDIT@Williams: The Ferrari engine mounting you are reffering to is interesting, but thats the angle at which the entire engine is mounted (in line with the car). This is 3.5 degrees, allowing more air to the rear diffuser and increasing downforce. However, there is a trade off as the higher the engine the higher the center of gravity and the worse