After i chg my throttle body, all belting ( timing, fan, air cond), re-fiber muffler, my car speedometer can't reach even 120km/h.. What is de possibility?
dunno what's wrong, but if i were you, i try change things back one by one and see if the problem goes away or not, can find out which one is the culprit.. at least..
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?