i've looked around but I can't find torque graphs of any petrol engine with and without a turbo, can someone please help me? I need two graphs, one which shows the torque output of an engine without a turbo, and one which shows the torque output of the same engine (or similar in terms of size, manufacturer etc as i am desperate) with a turbo. mods, i don't know if this is the right section but please can you leave it here as this is the most read section, and i am extremely desperate (you can move it after a couple of days if need be). Thank you.