Thread: Water injection?

Gas prices are getting higher and even though our ve's are somewhat good on gas I still want more mpg! I was searching around and found out that I might be able to extract more mpg's by using a water injection system. But I'm not sure if it will realy work since these systems are ment for keeping detonation at bay and allow you to advance the timing as if you were using high octane race fuel.

Does anyone here know if this will help an N/A VE daily driver get better gas mileage? I also want to advance the timing even further than I already have but I dont know if that would even get me more power or not being N/A and all. Assuming this does work one thing I would worry about is corrosion and small puddles. What happens to the moister inside the engine after it is turned off?

I don't think water injection will help you obtain higher MPG's, but it's worth a shot, if you're willing to spend the money up front!

Water/Meth injection also helps to raise the compression a bit.

...And I can advance my timing a bit further but I worry it will get into my oil!!!

If water injection does happen to mysteriously get into your oil, you've got MAJOR issues.

Technically, it's installed just like a nitrous system. The moisture atomizes to the point to where it really just makes for a denser charge with the fuel.

Well I was thinking it might be able to get past the piston rings after the engine is turned off but I could simply turn the water injection off before I turn off the engine.

I dont think this would have to cost much. I can get most of the parts from summit racing. I think I could use a nitrous fogger nozzle with a .018" jet on it for about $42 and Mr gasket makes a mini fuel inline pump for $38 "MRG-12S". This pump puts out 7psi of pressure but I dont know if that would be enough pressure. If it's not then I can get a normal high pressure inline fuel pump for about $75. Then all I would need is some wiring, water lines, some fittings, an on/off switch and a tank.

I was thinking would'nt I need to place the nozzle after the throttle body? Because that restion could make the mist into water droplets.

i never heard of this for N/A but it doesnt sound bad and should be given a shot for boost it works wonders. defiantely show us any improvements and gains

water ijection isnt going to really give you better gasmileage, basicly water injection is ment to raise the octane ratig in the fuel youare using, which i really great for tuning purposes as you can run more ignition timing and that where you gain alot of te power of water injection, and you would be looking at running water/meth injection, and it will also need to be tuned for this...and most ofthe time watr/meth injection isused in certain rpm ranges and not 100% of the driving times, thats why it neds to be tuned with your ecu for certain activation points and whatnot.....pretty complicted for just trying to gain more MPG, and like i said its not really meant for more mpf but for more octance for more tuning purposes

It reduces combustion temperatures and hotspots in the compustion chamber as well as steam cleaning the motor. It may help you run cleaner/more efficiently and you get a slight octane boost from it, but that is very slight. I run it for reliability as it allows more timing and more boost.

Brent

Well I am still interested in using it but will 7psi be enough? Whats the normal pressure these kits use?

I think I will try it out with meth/water injection first and use a .012" jet to start out. Does anyone know where I can get methanol? Also I found this on a Dodge caliber srt-4 forum.-

Naturally aspirated/stock compression: With naturally aspirated engines with less than 10:1 compression, water/methanol is used typically in warm climates to get the intake temps back to 60°f. Benefits include: 10-15 HP increases from air density increases and full timing, Increased gas mileage, and carbon free combustion chambers. Activation is by a throttle switch adjusted for onset engine load. With this application, the nozzle is sized so that no more than 10% of total fuel consumption at peak flywheel HP is injected.

thank you to snow performance for this info...

That means I can use my spare summit switch to activate water injection!