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Old 04-15-2012, 11:21 AM   #10 (permalink)
smokey442
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Water injection by itself on a normally aspirated engine is not going to return any FE or power gains. It does do a fabulous job of cleaning combustion chamber and piston of deposits that may have formed. If you raise the compression/expasion ratio along with water injection then you will realize FE and power gains.
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