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Methanol/Water Injection Place to talk about meth/water injection.

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Old 05-08-2009, 11:22 PM   #1
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Default AEM Water/Methanol Injection Kit

Is anyone on this forum using this kit? I've been comparing this kit to the Devil's Own and the Hydramist trying to decide which one's for me. From all my reading, it looks like this will work best for me. Just curious if anyone had any thoughts on it or was willing to try and convince me to go with something else.

http://www.aempower.com/ViewCategory...CategoryID=120
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Old 05-08-2009, 11:33 PM   #2
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It appears to be functionally identical to the DevilsOwn kit.

Both use PWM to control the speed of the pump motor. Both reference pump speed to manifold pressure but not to RPM. The AEM costs $100 more, but comes with a tank that can be purchased elsewhere for $30-$40.
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Old 05-08-2009, 11:44 PM   #3
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Quote:
Originally Posted by JayL View Post
Is anyone on this forum using this kit? I've been comparing this kit to the Devil's Own and the Hydramist trying to decide which one's for me. From all my reading, it looks like this will work best for me. Just curious if anyone had any thoughts on it or was willing to try and convince me to go with something else.

AEM - Water / Methanol Injection Kit*
I installed it and checked it. Worked perfectly in the test.

I disconnected it and haven't bought the methanol yet. I rebuilt my engine not too long ago. I'll turn it on next Monday.
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Old 05-08-2009, 11:52 PM   #4
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I think either setup would work actually, but I liked the idea of starting with something that was complete from a single vendor. Wasn't sure if getting a tank from somewhere else would be as simple as it sounds. It would be nice to get a tank that is a direct fit for where my spare tire would go. The aem tank has the flapper in the tank to tell you when it's low as well, not sure if they all have that, but it sounds like a smart idea. The plan is to run a similar failsafe mechanism similar to what you did as well.
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Old 05-10-2009, 11:21 AM   #5
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I think either setup would work actually, but I liked the idea of starting with something that was complete from a single vendor. Wasn't sure if getting a tank from somewhere else would be as simple as it sounds. It would be nice to get a tank that is a direct fit for where my spare tire would go. The aem tank has the flapper in the tank to tell you when it's low as well, not sure if they all have that, but it sounds like a smart idea. The plan is to run a similar failsafe mechanism similar to what you did as well.
That flapper in the tank is the one that lights up the led when you're running low on methanol/water. It's one of the things I liked best from the AEM kit. We tried it out by filling it with water and pumping all of it out. Worked like a charm.

BTW, I installed my water tank right next to my trunk lid mechanism.
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Old 05-10-2009, 02:02 PM   #6
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I don't know if the 1 gallon tank will be big enough, the 5 gallon tank looks like a better fit for me.

As for the flapper, I'm wanting it to be as safe as possible, so any extras are nice. I have an electronic boost control that I will be integrating into the setup. When all is well it will be on the high boost setting and when there's an error it will resort to a lower boost setting that the motor is tuned for without meth.

Speaking of meth, these setups say you can use 50% meth. I'm wanting to run 100% meth, can I do so without any problems?
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Old 05-10-2009, 02:08 PM   #7
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5 Gallons is a lot of alcohol, unless you are planning to ditch your intercooler or you are tracking your car. I have a 2.5 gallon tank, and typically refill it every few weeks.
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Old 05-10-2009, 02:21 PM   #8
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Originally Posted by Milton Tucker View Post
5 Gallons is a lot of alcohol, unless you are planning to ditch your intercooler or you are tracking your car. I have a 2.5 gallon tank, and typically refill it every few weeks.
Keeping the intercooler, I just don't want to be concerned with filling it more often than my gas tank. Does your 2.5 gallon tank last you an entire tank of gas (when you are driving your car like it was meant to be driven)?
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Old 05-10-2009, 02:28 PM   #9
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My 1 gallon tank typically lasts several tanks of fuel in everyday driving.
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Old 05-10-2009, 03:11 PM   #10
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Keeping the intercooler, I just don't want to be concerned with filling it more often than my gas tank. Does your 2.5 gallon tank last you an entire tank of gas (when you are driving your car like it was meant to be driven)?
As Joe stated; it should last you for a long time if you set it up properly. In my particular case; I want the WI to come in after 7psi of boost.
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Old 05-10-2009, 04:42 PM   #11
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I am just running off of just the squirter bottle right now and with a 3 GPH nozzle it is OK with me. 5 gallons would be a lot IMO.
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Old 05-10-2009, 04:47 PM   #12
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I am going to use a 2.5 gallon tank in my car. I expect to fill it at the beginning of a track day and leave it alone.
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Old 05-10-2009, 07:34 PM   #13
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Good information, a 5 gallon tank is too much unless I plan on refilling others at the track.

How about nozzle selection, the instructions say to start with the smallest one and work your way up. Sounds like a recipe to spend a bunch of time on a dyno tuning. Is that what everyone here has done or is there a proven path for a Miata? Or am I missing something, once you have the correct nozzle installed, you just put it on a dyno and tune it just like a car running race gas.

Is there a decent source for this information that I'm just not finding?
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Old 05-10-2009, 07:35 PM   #14
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I remember seeing a nozzle size calculator somewhere. It was based on HP IIRC. Check the Devil's Own website.
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Old 05-10-2009, 07:46 PM   #15
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Quote:
Originally Posted by JayL View Post
Good information, a 5 gallon tank is too much unless I plan on refilling others at the track.

How about nozzle selection, the instructions say to start with the smallest one and work your way up. Sounds like a recipe to spend a bunch of time on a dyno tuning. Is that what everyone here has done or is there a proven path for a Miata? Or am I missing something, once you have the correct nozzle installed, you just put it on a dyno and tune it just like a car running race gas.

Is there a decent source for this information that I'm just not finding?
I made that mistake (I bought a couple extra ones from Kelly but I discovered that the Devil's kit nozzles are different and won't fit).

I think the one that comes with the kit is too small. That will indeed force me to buy a bigger one.
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Old 05-14-2009, 12:46 AM   #16
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Quote:
Speaking of meth, these setups say you can use 50% meth. I'm wanting to run 100% meth, can I do so without any problems?
Quote:
Shurflo requires not running more than 50/50 mix of water/methanol with this pump.

DO NOT PUMP FLAMMABLE LIQUIDS
DO NOT PUMP MORE THAN 50/50 MIX OF ALCOHOL AND WATER
MORE THAN 50% ALCOHOL IS A FLAMMABLE LIQUID
Maybe because its a fire hazard
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Old 06-08-2009, 10:57 AM   #17
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I am installing this kit on Tuesday... I will write a review
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Old 06-08-2009, 11:07 AM   #18
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The more I look at all these various kits that are available today, the more I'm thinking about just designing my own and marketing it...
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Old 06-08-2009, 11:32 AM   #19
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Originally Posted by Joe Perez View Post
The more I look at all these various kits that are available today, the more I'm thinking about just designing my own and marketing it...
Ohhhh, I'm interested.
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Old 06-08-2009, 02:11 PM   #20
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Originally Posted by Phillatio View Post
Ohhhh, I'm interested.
I'm actually halfway serious about this. I almost feel like I've done enough reading on the subject of WI over the past week to write a thesis on it, at least compared to the staggering degree of ignorance that seems to surround the topic within the automotive community... It'd be expensive to do it right, but from what I've seen, the kits on the market today are barely scratching the surface in terms of the potential that WI has as a serious power-enabler.
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