Originally Posted by Jordo!

I have a lot of experience with W/M inejction...

WarmandSci is correct, unless you are adding boost or timing, you will most likely lose rather than gain power, or at best break even. Although it will cool the charge, the water volume displaces both air and fuel (somewhat compensated by the concentration of methanol).

The major advantage of W/M is to quench detonation -- if you aren't detonating, you are unlikely to make any gains.

Or... if you wanted to run straight methanol, given the amount of extra fuel you burn for each lb of air, you'd make some extra power, but this would require completely revamping the fuel system and a major retune as well... stoich is 6.5:1 with meth. Also, really corrosive and toxic. And expensive.

Not worth it N/A... not always worth it even when boosted. And if you were to go that route, I'd recommend a direct port system anyway...