Engine Masters: Season 8, Episode 4

8 - 4: The Throttle-Body Throwdown!

How much airflow does a throttle body need to provide? The crew compares 90 mm and 105 mm forward-facing throttle bodies against one another, and then to 2000 cfm worth of top-mounted, dual quad-style throttle bodies. These will all sit atop a fuel-injected, 442ci LS7 mill pumping out around 700 hp. How much airflow is enough for this power level?