Those wanna covert from SOHC to DOHC for 4G9X series engine... can gimme a buzz... I have a 4G91 head, full set, everything needed for the conversion.... interested PM me... installation can be arranged.
Just wondering is it possible to turbocharge a VVTI engine assuming only a small turbo pressure is required (0.3 bar)? What about the ECU ? What will happen to the VVT mechanism?