hi guys,
i am a newby but i have been driving a 96 impreza for the last four years. i recently decided that i wanted to go faster so i made an engine swap, a ej18 to a ej20t from a 98 forrester. i also changed the ecu. my problem is that the gears no longer change smoothly and only when i drive fast also when i do an engine wash it run through the gear smoothly, but hardly any power. i also changed the clutch in my transfer box but there is still that sound and viberation when going around corners. can anyone tell me whats happening.