Do It Yourself Water Alcohol Methanol Injection
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Parts List
Articles & Testimonials
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4/25/2012 Update: Added another video to the Video section. Thank you for visiting and drop me a line with any and all of your suggestions!

Building your own water / alcohol /methanol injection kit is easier and cheaper than you think. The information and instructions that I provide will allow you to build an inexpensive, high quality kit that will give you many years of reliable service. Depending on what parts you already have in your garage, and what options you choose, the total cost for this kit will be between $100-$240. I've personally installed this setup on more than a dozen different cars with excellent results and rock solid reliability. This site has been up since 2001 and has helped hundreds of people save money by doing it themselves. Your feedback is important, so send me an email. Thanks for visiting!

The information that I've compiled into this site is not totally unique and original. It is simply a collection of some of the research that I've done and the experiences that I've had using water / alcohol / methanol injection over the years. My original goal back in 2001 was to scour the Internet and build the best home-built water / alcohol / methanol injection kit possible while keeping a watchful eye on the budget. The goal is still the same, as I'm continually looking for better sources for the parts that make up this kit. I've designed this site with the average turbocharged vehicle in mind, but it applies to supercharged vehicles as well.

Why Water?
I could flood you with scientific theory and all of the information that I've found over the years, but plain and simple, it works! When I'm at car shows or at the track I always sing the praises of injecting alchy into an engine. Sometimes I get some blank stares, so I've boiled my message down to this: Do you want all the benefits of running 116 octane race gas all the time, but without the $10 a gallon pricetag and other hassles that race gas brings with it? (Everyone says HELL YES!) Well, water injection is for you!

In addition, it's been used for a long time, by countless people who get consistent, excellent results. Probably the biggest automotive community to embrace Water/Alcohol Injection early on was the Turbo Buick Grand National gang. Water / Alcohol / Methanol injection really caught on around 2004 when a few new vendors started selling kits with the basic parts that you'll find in this website. From 2004-on injecting water, alcohol or methanol into a turbo or supercharged engine is no longer voodoo, it is a must for any street application that aims to get the most out of its combination. There are a handfull of how-tos and detailed explanations on theory of operation and results. I've started to collect some of this on the "articles and testimonials" page of the site. For a quick overview, here is an exerpt from Steve Hill's document titled "Water Alcohol Injection"

"Water Injection, or water/alcohol injection, acts as a highly effective gaseous intercooler. The only reason for an intercooler is to cool down the hot, compressed air from the turbo. Water can do this job far better because it has a very high property of Latent Heat of Evaporation, 500+ BTUs compared to gasoline's 135 BTUs and alcohol's 470. If you need an extra bit of fuel, a 50-50 ratio of alcohol to water strikes a good balance between the maximum anti-knock capability of water and maximum supplemental fuel."

What's Involved?
The system we're building is very simple. Here's how it works:
A reservoir holds water or a mixture of water and alcohol or water and methanol. Connected to the reservoir is a water pump. A pressure switch sees a certain psi of boost from your engine, and (once activated) sends power to the water solenoid and pump. The pump then sucks the water alcohol mixture from the reservoir and injects it into the airstream via a spray nozzle attached before the throttle body. It sprays a fine mist (far too fine to hydrolock an engine) that gets sucked into the cylinder. In there, the heat turns the liquid into a gas (steam), in the process absorbing a lot of combustion heat. The net result is

1) Cooler intake charges (similar to what a bigger intercooler does)
2) Steam cleaning your head and valves
3) Drastic Reduction in knock/detonation.
Since it reduces knock/detonation, your engine will advance timing (or you can manually advance the timing, thus making more power - which is the same result you get with running high octane fuel). Does it work? Heck yeah it does! You'll be able to run more boost, timing and get far better and more consistent performance from pump gas.

Let's Get Started!
If what you've read seems interesting, take a look at some of the information that I've put together. Building this system takes a little time and effort, but it's well worth it!

The content provided in this website is for informational use only. Website content is provided at the reader's own risk and the reader will not hold the parties involved in creating, producing or delivering this information liable for any loss, injury, claim, liability, or damage of any kind resulting in any way from any errors in or omissions from the information. Thanks for understanding.