DazC
right, the way I see it is as follows....
power is equivalent to how much air gets pushed in, burnt and thrown out, so if you have a 1.6 running at 100% efficiency it will burn 1.6 litres of fuel and air per cycle.
so if you add a turbo and run it at 1 bar then it's running at 200% efficiency and burning twice as much as a naturally aspirated could possibly burn if it was running at 100% efficiency (which a cvh will never do) so then if you increase capacity to 2 litres and run it at 1 bar then you will be running 200% of 2 litres which is 0.8litres more air and fuel burning per cycle. significant?
I mean this in no way to be patronising or bitchy, and please correct me if I'm wrong, I'm pretty much all self taught so am no way all-knowing. just trying to figure out whats best.