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Old 11-16-2006, 09:31 AM   #1
xrocket21
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Default My idea how meth works....

I run a coolingmist kit and love it, car is a beast down low.

Last night while trying to explain how it works for the 100th time, I had a good idea.

I explained that it's basically like running bigger fuel injectors, bigger intercooler, and race gas all at the same time, and only when you need it.

Thats the best description I can think of, I think its pretty accurate. Yeah?
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Old 11-16-2006, 10:28 AM   #2
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I'd say that is pretty accurate. Methanol has a higher cooling power than gasoline, which is like having a bigger intercooler. It has much higher octane so it is like race gas, and your engine burns it so it's like having bigger injectors
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Old 11-16-2006, 10:48 AM   #3
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The water is what is doing most of the cooling, as well as increasing the octane of the fuel. Water resists detonation, as a result increasing the octane. The meth is fuel, but be careful when tuning, because if the water/meth injection breaks or clogs, you can do serios damage to your engine.
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Old 11-16-2006, 11:16 AM   #4
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^^^
Did you even read his post? This is not what he was asking. Also alot of your information is wrong.
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Old 11-16-2006, 01:14 PM   #5
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Quote:
Originally Posted by coyoteyz13 View Post
The water is what is doing most of the cooling, as well as increasing the octane of the fuel. Water resists detonation, as a result increasing the octane. The meth is fuel, but be careful when tuning, because if the water/meth injection breaks or clogs, you can do serios damage to your engine.
Pffffft.

Water does not increase octane.
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Old 11-16-2006, 05:26 PM   #6
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If water doesn't increase the octane of the mixture going into the engine, neither does meth. They both effectively increases the octane of the mixture, but the origional fuel is still in there, and its octane has not changed. Same thing with mixing petrol. If you put 92 octane together with 100 octane, you don't get 96 octane. You get a mixture of 92 and 100 octane. The det protection might have gone up, but you still have 92 octane in there.

As a response to the origional quote... Water injection might help prevent det, but water does not resist det. An octane rating is a fuels ability to resist detonation. Water is not a fuel because it can't burn, and therefore it can't resist or contribute to detonation.

peace

ps-injection is also like having a bigger radiator and oil cooler.

Last edited by hippy; 11-16-2006 at 07:25 PM.
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Old 11-16-2006, 08:35 PM   #7
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water doesn't increase boost..

meth injections is like octane booster and cooling.
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Old 11-16-2006, 09:00 PM   #8
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water is not combustible, so it is impossible for H2o to increase octane, however it does have a higher boiling point than methanol and but its ability to cool intake air is not as effective. At least that's what I think.
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Old 11-16-2006, 09:25 PM   #9
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Quote:
Originally Posted by blindfold View Post
water is not combustible, so it is impossible for H2o to increase octane, however it does have a higher boiling point than methanol and but its ability to cool intake air is not as effective. At least that's what I think.
...d0000d....water absorbes MUCH more heat as it changes state from a liquid state to a gaseous state(steam)---like when injected in an engine....than any alcohol does



....and the OP is, essentially, correct in his explanation
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Old 11-16-2006, 10:21 PM   #10
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It's kind of ironic that the same methanol some of us use for dry gas such as "HEET" to dissiapate any moisture/water in your gas tank, you actually mix with water for performance applications...
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Old 11-17-2006, 05:38 AM   #11
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Old 11-17-2006, 08:25 AM   #12
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Quote:
Originally Posted by hippy View Post
If water doesn't increase the octane of the mixture going into the engine, neither does meth. They both effectively increases the octane of the mixture, but the origional fuel is still in there, and its octane has not changed. Same thing with mixing petrol. If you put 92 octane together with 100 octane, you don't get 96 octane. You get a mixture of 92 and 100 octane. The det protection might have gone up, but you still have 92 octane in there.
When I add race gas to my tank I no longer have 91 octane in my tank, I have a mixture with a resistance to knock of a fuel of about 100 octane. I don't understand what you're saying about having 92 and 100 in there. Once you mix the fuels you get a homogeneous mixture with an effective octane rating somewhere in between the two.
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Old 11-17-2006, 08:43 AM   #13
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I was saying that when you mix 87 and 99 octane, it doesn't magically become 93 octane. Just like with injecton or fuels with additives like ethanol(or anything) in them. You might get similar resistance to knock with 87+water injection, 87+octane booster, and 87+eth as you would with 93 octane, but it's not the same. One will act like 87+water, one will act like......, ....., and one will act like 93 octane petrol.

peace

Last edited by hippy; 11-17-2006 at 09:14 AM.
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Old 11-17-2006, 10:34 AM   #14
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YEah......

It wasn't a question, more of a statement. Everyone always asks how it works, and it is difficult to explain sometimes. I thought of explaining it the way the original post is worded and thought it was an excellent way of putting it, figured I would post here since so many people don't understand it.

I don't understand the stigma of it being unsafe. I use mine daily for the past 6 months and love it. I have gone through almost 10 gallons of 50/50 mix already

I make excellent low end torque with the stock turbo, I let someone drive it wednesday night, and they pointed out the lack of traction in THIRD (it was rainy, but still, its awd with 245 azenis all around!)

edit: I say bigger injectors because the duty cycle is turned down for my meth map to keep it from running rich.
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Old 11-21-2006, 10:28 AM   #15
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Quote:
Originally Posted by hippy View Post
I was saying that when you mix 87 and 99 octane, it doesn't magically become 93 octane. Just like with injecton or fuels with additives like ethanol(or anything) in them. You might get similar resistance to knock with 87+water injection, 87+octane booster, and 87+eth as you would with 93 octane, but it's not the same. One will act like 87+water, one will act like......, ....., and one will act like 93 octane petrol.

peace
The water is resisting detonation as higher octane fuel would do. This allows for more boost or more advanced timing without having to worry about detonation.
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Old 11-21-2006, 12:45 PM   #16
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My best way to describe,

Meth/Alky acts as an octane booster, but also has decent cooling properties also. You can subsequently add more timing and boost to make power due to higher octane and some cooling of alky/meth. The water acts as an in cylinder intercooler, as it evaporates, heat goes with it, lowering your cylinder temps, egt's etc. This allows more timing and boost, when you take away heat, you have less chance of pre ignition due to less heat in the cylinder prior to TDC and the spark plug actually firing. The other thing that it does, it add more volume to the air charge coming into the cylinder so you don't need as much fuel to make the combustion process work.

DP
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