Anyone out there done a conclusive test between water alone and water/alcohol mixture injection. Also what vol % water/alcohol mixture works best?

 

Bump bUmp buMp bumP

 

Well if you do water alone.. good luck with the corrosion... the purpose of the meth, iso, denatured, alky is to prevent the water from corroding your internals... you can run just strait water.. just as good as a 50/50 mix of meth and water but youll run the risk of having problems... just goto home depot and get some dnatured alky... 32oz-4.99$ youll need 2 for a 50 mix...

 

er.....................how does alcohol prevent corrosion?

 

With methanol you`ll get as much HP as you wish,and no corrosion....
What is the point in water?

 

the point in the meth is to not cause corrosion.. the purpose of the water is to take the heat out of the equation .. everyone knows water is the best dissapater of heat... at least i assumed everyone knew that... the alc just helps it burn better... also at a lower temp... so with lower temps you can inturn increase the boost... say your running 93 oct with 50meth/50 distilled water... you can turn the boost up about 5 psi.. will it stay there.. well that depends on your turbo... stock it will peak at 25 then settle to 22-21.....

 

you dont want to run straight meth.. wont give you the same advantages as running a 50/50 mix... you could run a 75meth /25 water if you like... on the stock turbo you could probable see gains of 40hp.. with a bigger turbo... ie buschur br500 about 90whp.....

 

Here http://www.smcenterprises.com/

 

you can purchase the evo kit.. from www.buschurracing.com they dont have it listed on the smc site.. its 499$ and takes about 2-3 hrs to install....and its really easy...

 

This is what I was led to believe, and it is incorrect.

The purpose of methanol is not at all intended to be a corrosion inhibitor, nor does it function as such.

The most power potential will be realized with a *straight* methanol mixture and adequate tuning...assuming the injection volume is sufficient - which is a *VERY* important factor in the overall equation.

For low injection volumes, water will lend benefits. As the injection volumes increase, the proportion of alcohol should increase while the purpose of water becomes decreasingly significant.

 

I've had good luck running windshield wiper fluid in the eclipse for the last 5 years. Being in a colder climate I can't afford to have it freeze on me and I can get away with 3-5 PSi of extra boost no problem now. I inject in two places with aquamist nozzles, right after the turbo and another right before the throttle body. I do notice a blue stain inside the intake pipes but once It reaches the combustion chamber it's all converted to power and leaves the head carbon free.

 

ok ...too much water can lead too corrosion, internal corrosion...which is BAD... too little water if using 100% race methanol results in the fluid being extremly flammable and volatile. Solution... for maximum results i'd run a 70/30(meth/water) mix or even a 80/20... 50/50 is perfect for neutralizing teh flammability of the meth and still gives the cooling effect, however, more meth results in lower intake temps allowing you to run higher boost safer...and increase timing without worrying about retard. Running a mix such as 100% meth or 80/20 or 70/30 will result in a increase in fuel richness. You will need to back out fuel accordingly ...so if maximum power is to attained from meth/water injection then u may need to lean out your fuel mix...a good AL flash or vish flash will do the trick if u wish to go that route.

 

any alcohol in the mixture will lower the AF ratio, ie causing the car to burn rich/cold so lowering the power output of the engine.......running straight water will not alter the AF ratio......this is how i see it.

 

that's true..straight water will give some cooling benefits and not alter teh a/f ratio...it will/ may lead to corrossion...

 

I am getting a custom dynoflash from Al middle of this week. I am opting for 100% water injection because i havent got time to put a straight water injection in my car and i dont want to mess up the AF ratio of Al's tune. Btw, is the stock ecu capable of retarding or advancing timing to a significant degree?