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Will fuel economy suffer with the supercharger belt off?

Updated: 8/20/2019
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11y ago

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In most situations no, If the motor is a small displacement that came with one from the factory it could. Some of the engines have low compression and with out the boost, they could have to work twice as hard and actual burn more fuel. An extreme example, Top Gear tv race an M3 verses a Toyota Prius around thier track. The BMW M3 actually got better fuel economy vs. the Pruis under race conditions.

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Q: Will fuel economy suffer with the supercharger belt off?
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