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Originally Posted by Richard L
John, those were impressive gains. It seemed that there is a limit how much water can be injection pre-turbo before the gain becomes a loss.
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Oh, it definately works.
I saw that on the dyno as well, there is no question about that.
The devil is in the detail though, I want to know *how much* and *when* so I can optimise the setup for maximum gains with minimal water usage.
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Testing on the sam epiece of road is pretty consist than most people would give credit for. You have spare yourself a great deal of dyno time and cost.
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The weather helps lately, if it is wet it will not be consistent enough (and bloody dangerous on a public road!)
The dyno gives you a nice curve with AFR info as well, no wheelspin, it's very good.
The road datalogging is good for testing more roughly, to see if you're moving in the right direction.
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I am not sure if it will help if I lend you a flowmeter, all you need is a DVM to get the flowrate reading, evey little thing helps. PM me your address.
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Flow meter is one, the other is trimming WI according to the fuel injection pulse. At the moment it's not a huge problem because my WI is between 4K and 6.5K so the 'dynamic range' isn't that wide. My water/fuel ratio ranges from 10% to 15% or so (with my basic aquamist system)
I'll send you a PM when I've decided on what sort of setup I'll go for in the near future. Maybe using 2x0.3mm nozzles perhaps...