Your Boost Gauge is Bogus.

The problem with a boost gauge is that it only measures air pressure. Your engine doesn’t care about pressure alone. It cares about Manifold Air Density (MAD), which considers pressure, temperature, and humidity. The higher the air density, the more it weighs and the more oxygen it contains per the same given volume. How do you measure Manifold Air Density? The Banks iDash. Watch Gale explain.