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Old 08-31-2018, 06:22 AM   #151 (permalink)
teoman
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A3 - '12 Audi A3
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Water injection on gasoline cars does not increase FE without other mods.

It is a very good detonation inhibitor (or retarder) so you can put more boost or have a higher compression ratio or run lower octane gas. Or increase timing advance.

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