Honda D Series Forum banner

plenum

  1. Match Throttle body size to plenum or not?

    Forced Induction
    I had bought a custom intake manifold a few years back, and I was redoing my setup and finally got around checking the inside diameter of the plenum and my current throttle body, and that I have been running the wrong size throttle body. I measured the plenum to be a minimal of a 72 mm inside...
Top