I guess my application is even more difficult. I run a mazdaspeed6 with direct injection. So the final mix (fuel to spray) happens in the cylinder. I'm just trying to understand the difference in benefits from mostly methanol, to mostly water.
I've got a single nozzle setup on my cold pipe (315cc/min), maybe 4 inches from throttle body, and it works great.
Just installed a kit in my buddy's car, and decided to do a dual nozzle setup (smaller nozzles, total of 380cc/min) and he's still seeing knock. We're running the exact same map, boost etc. I have a better cold pipe though, that goes straight into the TB. He's bends a bit. I want to see what mix would best benefit his setup, and get rid of his knock.
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