ah k
now i think im startin to learn a bit about the engines and stuff so a 2.5l will give me more torque. but the 2.2l will rev longer allowing more time for the turbo to be spooling? at least thats wat i think ive worked out now.

another question to do with the closed deck and semi closed which i know even less about lol is it possible to convert to a closed deck from a semi closed or is it actually a part of the block?
and ill do a search to find out how much boost a semi closed can handle safely.