overboost noun 2verb 1forms 3 noun2 •The process of overboosting.These planes all have popoff valves, designed to prevent overboost, but the flow dynamics are such that manifold pressure can seriously overshoot redline before the popoff valve opens. — 2013 •An instance of overboosting.Manifold pressure exceeding the limit lines shown in figure 5-2, constitutes an overboost. — 1989 verb1 •To increase an engine's intake manifold pressure to higher levels than it is designed for.Morgan was waiting outside in the bay. Didn't even wait for me to say a word. "What happened? Why did you overboost? You could have blown the whole shuttle, the whole expedition." — 2006 formsoverboosted · overboosting · overboosts
