Merits of water in a mainly methanol mixture?.

[keithmac]

Hello all, I`m currently running a 75% methanol 25% water mix injecting approx 1200cc/min. This gives me roughly 300cc/min of water injected by port and post turbo as part of the mixture,which is 15% of the fuel injected.

I`m due to fill the tank again and was mulling over wether to stay 75m25w or just go for pure methanol, it`d be easier just to fill with metanol, no mixing but I don`t want to sacifice the knock reducing properties of the water?. Does injecting at these higher volumes negate the effects of the water?.

My other though was that the water content was also reducing the corrosive effects of the methanol on my aluminium inlet manifold etc and may be worth keeping just for this reason?.

I`ve tried many mixtures and flow rates to eradicate knock on my engine and have come to the conclusion that it`s octane limited, hence the high volume of methanol used.

Would like to here some input from anyone who`s injecting 1l/m or more and what mixture you found to be best?.

Cheers, Keith.