ORIGINAL: zachaTTack

So if i understand right adding water meth alone will give me about 20hp, right? No. Water / Methanol by itself with no ECU adjustments does minimal anything. It WILL cool your intake temps which does add a little
Well if a get a 100 octane tune and run that with water meth what kind of hp should i expect?Nothing more than if you tweak your existing tune with Lemmingwinks like Nate said. You see, by tuning with the lemmingwinks... you're basically doing the exact same thing that a 100Oct flash does, you're advancing your timing.Both will have the same result because they both do the same thing. One is $500 more though. and one is free.
also how long does the 2qt tank last, how many times would i have to fill it up per tank of gas? If you have less than 300hp... then you only need about 200ml/min injection. if THAT is what you're running for an injector, and you have the controller set to not always be injecting (you set the controller to only inject w/m when you have the throttle wide open) then it should last you a full tank of gas. If you set the controller to provide 100% injection at only half throttle... then you'll run out fast because you use half throttle just about everytime you drive. and finaly, can i run water meth all the time or sould i also get the 93 octane tune and only run water meth when i am driving hard? You can do both... If you're going to get the 100 Oct flash instead ofjust using lemmingwinks... then get a 93 Oct too so your engine isnt pulling timing whenever you're not running w/m. this way if you're not running the w/m... you can just switch back to a regular 93 program. Ideally... you could just adjust it all with lemmingwinks and then if you dont plan on using w/m... just switch back to stock settings, its much cheaper than paying $700-$1000 for two ECU flashes.sorry for all the questions i just want to completely understand this before i invest in it.