What modifications are necessary to convert a 4G63 non turbo to turbo?
Hi, I want to install turbo charger on my 4G63 non turbo galant, but I wonder what modification are necessary to be done inside the engine. Is it enough to replace the pistons with the pistons whose compression ratio are 7.8/1 ? The other question is the ECU, if I use the origanal ECu of my own car, does it get me into troubles? for example poor fuel mileage or poor performance ...