![]() ![]() Boost threshold: for traditional turbochargers, they are often sized for a certain RPM range where the exhaust gas flow is adequate to provide additional boost for the engine. ![]() Turbo lag: turbochargers, especially large turbochargers, take time to spool up and provide useful boost.Higher efficiency: turbochargers run off energy that is typically lost in naturally-aspirated and supercharged engines (exhaust gases), thus the recovery of this energy improves the overall efficiency of the engine.Better fuel economy: smaller engines use less fuel to idle, and have less rotational and reciprocating mass, which improves fuel economy.Power vs size: allows for smaller engine displacements to produce much more power relative to their size.
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