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good water/fuel mix for a home built system
i have been looking at water injection for a while and i have finally got a car worthwile doing it too. a 1.8L '91 nissin pulsar, fuel injected. i was looking at the commercial units but i dont have a lazy $700 lying around. i am in my final year of an engineering degree so i was thinking of designing my own system that will use the air-flow metre to regulate the water flow.
So far i have collected this much information ? Proportional to engine load / air flow ? Only inject water at higher engine loads ? Do not use ethanol ? Mounted before the throttle valve but after the air meter what i was wondering about, how much water do you inject into the engine? is there a way of accurately testing the optimum volume on a shoe string budjet? Any other important information that i may need to know would be useful, or comments on what i already have i was also wondering wether the engine should be at operating temprature or close to it before the system turns on to prevent water damage to the engine and oil. Thanks |
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