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Old 20-07-2010, 02:47 PM
Howerton Engineering
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Default Re: Injecting water into a rich a/f mixture is not a good idea

There are few variables in the equation. Where is the IAT sensor in the inlet track. Will you be injecting before it so it is wetted? If so, you will just need to lean the fuel maps for whatever mixture you are sparying to bring the AFR's back to a reasonable level. If you have a rough idea of the heat compensation curve for your car(how much timing it pulls at what temp thresholds) you will get an idea of what can be gained even without changing the timing maps.

If practice, the right amount of methanol sprayed in the inlet track will provide substantial cooling. This is the type of application where I really like using methanol, as it will flash off and cool better. Straight water will not cool (according to the sensor ) as well as methanol. Each application is always a bit different so it will take a testing to find what works for you.
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