Ok so we all know that a bigger intercooler increases power, bigger the better it would seem.
Same goes for pipework-larger internal diameter = better flow etc.
The question i want to ask is:
1) My understanding is that for a given volume of pressurised air (say from a turbo) that the smaller the area it is contained in, the higher pressure the air has. And vice versa - why then do bigger pipes increase power? surely the compressed air from the turbo will be less compressed than in a smaller pipe? Example 10psi of charged air in a Mcdonalds straw = high pressure, 10psi charged air in a sewer pipe = very low pressure?
2) also for intercoolers, bigger intercoolers cool air more = denser air = more power. But surely there must be a point were the intercooler is too big and the boost pressure actually decreases when in the intercooler, example imagine an intercooler the same volume as the size of the room your sitting in now, imagine a 70mm inlet from the turbo charging air into the room and a pipe at the other end goin to the throttle body, the pressure is just gonna be dissapated by the volume of the intercooler (room). That is unless the room eventually becomes pressurised (wud take ages) and then if that is tru does a bigger intercooler make for more turbo lag, as wud take longer to pressurise??
Sorry its a bit boring but cant get me head round this physics lark, lol