i don't think switching to a bigger AFM will help the engine breathe better, because now the bigger plate is heavier as well
the best AFM in terms of unrestricted airflow would be a hot wire type, so you could try looking at other toyotas that use those, but i'm not sure if that will work since the plug may be different, and the output data from the hot wire AFM may not make any sense to your original ECU, which reads from the vane type. But if that works, I'll be the first the ditch the 4age bulky AFM
the newer 4ages (blacktop 20V) use map sensors because they're in japan! In fact all the 4ages from 16V to 20V (except for silvertop) all use map sensors, because Sushi-land's emission requirements are lower than that of North America. For a 4ag, If you simply want to have a unrestricted intake system, then its not worth it to convert to Map sensor, because you'll need the japanese spec dizzy, coil and ignitor, engine harness, ECU, the MAP sensor, etc. The AFM is a superior piece of equipment over the MAP sensor, because it measures the actual incoming air (More expensive too). JDM 4ags having more horsepower may have a little to do with the MAP sensor, but mostly its because of their lower emission standards, and different gasoline. The reason why almost everyone converts to a MAP sensored setup is because thats what the majority of aftermarket parts are designed for.
Linear Mode
