Thread: Vacuum engine to improve fuel efficiency? (after burner engine)
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Old 02-02-2020, 11:56 PM   #1 (permalink)
Tahoe_Hybrid
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2020 - '08 Chevy Tahoe H
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Vacuum engine to improve fuel efficiency? (after burner engine)
why don't cars have Vacuum engines? post Cat to recapture lost energy?
like the Engine Flame Dancer

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Last edited by Tahoe_Hybrid; 02-03-2020 at 12:02 AM..
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