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#methanol #meth #injection This is NOT how you do it. This was James idea. He owned the #NissanAltimaTurbo *
With the introduction of Ethanol type fuels like E85, and the wide spread use of water/meth injection, there is a debate stirring about which is better.

Water/Meth Injection

The best thing about water-meth set-ups is that anyone, anywhere, can install an injection type system on there motor. Also there are choices in what to inject based on the desired outcome.

100% water injection

Water is a great detonation suppressant and also helps to lower the EGT’s of any engine. As the water enters the combustion chamber, and is compressed, it vaporizes. This change in states pulls energy in the form of temperature from the system. This drop in temperature in the cylinder cools hotspots in the combustion chamber and helps to detour pre-ignition. The water also suppresses spiking EGT’s from running aggressive timing or high cylinder pressures, and keeps the motor from warping or burning up a valve.

Water/Alcohol Injection

Instead of injecting just straight water, a mixture of alcohol can be added to the system as well. Alcohol, while it has a very low BTU rating, is great at lowering air temperatures as well as cooling the combustion. Because alcohol has a low latency of heat, and evaporates easily, when mixed with water it aids in the atomization of the water and as it evaporates before entering the motor, pulls heat out of the air to lower the air intake temperature ( AIT’s ) . Denatured alcohol (or methylated spirits) is mostly used, and it is cheap and easy to come by. Any local pharmacy will sell it. As for the mixture ratio, most go with a 30%-50% mixture with water.

Water/Meth injection

Many users opt for another choice and do a ratio of water and methanol when setting up an injection system. Methanol not only has cooling property similar to fast evaporating alcohols, but has a decent BTU rating that aids in making more power as well. Some argue that it can lower AIT’s just as well as alcohol, but with its higher BTU rating will help the car make more power, so it is superior to just mixing in alcohol. There have been many comparisons that might support this reasoning causing many users to choose a methanol mixture over an alcohol one, but one thing is for sure; Methanol is not as readily available, and as cheap as alcohol. When it comes to the mixture ratio, like alcohol, many go with a mixture of around 30%-50% methanol to water.

Ethanol Fuels (E-85)

With the push near the end of the 2000’s for alternative fuels, corn based fuels, like ethanol, started popping up a local gas stations across the US. This type of fuel had a lower BTU rating than standard gasoline, and required 30% more of it for a stoic burn, but it also had a very high octane rating and incredible detonation suppressing abilities. While this fuel has not been popular with regular commuter vehicles, ethanol has turned out to be a winner with high performance N/A and forced induced cars. Enthusiasts and racers alike have commented that the fuel is just as good, if not better at times, then most of the expensive race fuels found on the market today. Add to that the price of ethanol being two if not three times cheaper than race gas, we see why it’s getting so much attention.

. REMEMBER, it’s all in the install and the tuning, so take your time, and don’t take short cuts.





















Do It Yourself Water Alcohol Methanol Injection - QR25DE QR25DET Nissan Altima Turbo
Do It Yourself Water Alcohol Methanol Injection - QR25DE QR25DET Nissan Altima Turbo
Do It Yourself Water Alcohol Methanol Injection - QR25DE QR25DET Nissan Altima Turbo

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