Differances between Methonal and Denatured Alcohol
08-19-2006, 04:07 PM
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Differances between Methonal and Denatured Alcohol Like the title says I have seen people running Alcohol. I have seen people running methonol. Is there an advantage over either one???? Is there any differance based on set up???
08-20-2006, 03:09 AM
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Originally Posted by Blown SS
Meth is alcohol 
08-20-2006, 02:24 PM
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Methanol is methyl alcohol. Denatured alcohol is ethanol (ethyl alcohol) with a denaturing chemical added to make it poisonous (often methanol is used to denature).
Methanol has lower energy content per unit mass of fuel then ethanol.
Methanol has a lower stoich AFR then ethanol, which means you must inject greater volumes to achieve stoichiometry.
At stoichiometric AFR ratios, methanol combusts with more energy (BTU's per lb of AIR) then ethanol, which means it has the capability to make more power.
Methanol has a higher latent heat of vaporization, which means it removes more heat from the surrounding air when it evaporates. This allows it to have a greater IAT cooling effect then ethanol.
Methanol has a higher octane rating then ethanol.
In short, Methanol will cool better and provide more power then ethanol, however you must inject it more of it per lb of air due to the low stoich AFR. Methanol is also usually cheaper then denatured alcohol.
Methanol has lower energy content per unit mass of fuel then ethanol.
Methanol has a lower stoich AFR then ethanol, which means you must inject greater volumes to achieve stoichiometry.
At stoichiometric AFR ratios, methanol combusts with more energy (BTU's per lb of AIR) then ethanol, which means it has the capability to make more power.
Methanol has a higher latent heat of vaporization, which means it removes more heat from the surrounding air when it evaporates. This allows it to have a greater IAT cooling effect then ethanol.
Methanol has a higher octane rating then ethanol.
In short, Methanol will cool better and provide more power then ethanol, however you must inject it more of it per lb of air due to the low stoich AFR. Methanol is also usually cheaper then denatured alcohol.
08-20-2006, 03:14 PM
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Originally Posted by bowtieman81
Perhaps you should worry more about your reputation and character instead of what methanol to use.
My apologies to the mods.
My apologies to the mods.
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08-20-2006, 03:14 PM
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Originally Posted by Draco
Methanol is methyl alcohol. Denatured alcohol is ethanol (ethyl alcohol) with a denaturing chemical added to make it poisonous (often methanol is used to denature).
Methanol has lower energy content per unit mass of fuel then ethanol.
Methanol has a lower stoich AFR then ethanol, which means you must inject greater volumes to achieve stoichiometry.
At stoichiometric AFR ratios, methanol combusts with more energy (BTU's per lb of AIR) then ethanol, which means it has the capability to make more power.
Methanol has a higher latent heat of vaporization, which means it removes more heat from the surrounding air when it evaporates. This allows it to have a greater IAT cooling effect then ethanol.
Methanol has a higher octane rating then ethanol.
In short, Methanol will cool better and provide more power then ethanol, however you must inject it more of it per lb of air due to the low stoich AFR. Methanol is also usually cheaper then denatured alcohol.
Methanol has lower energy content per unit mass of fuel then ethanol.
Methanol has a lower stoich AFR then ethanol, which means you must inject greater volumes to achieve stoichiometry.
At stoichiometric AFR ratios, methanol combusts with more energy (BTU's per lb of AIR) then ethanol, which means it has the capability to make more power.
Methanol has a higher latent heat of vaporization, which means it removes more heat from the surrounding air when it evaporates. This allows it to have a greater IAT cooling effect then ethanol.
Methanol has a higher octane rating then ethanol.
In short, Methanol will cool better and provide more power then ethanol, however you must inject it more of it per lb of air due to the low stoich AFR. Methanol is also usually cheaper then denatured alcohol.
08-20-2006, 08:41 PM
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Originally Posted by cablebandit
wow...easy answer but none of us knew!! There you go Matt...you better switch to ethanol...I got a 5 gallon can of it friday!!!!!
There you go Matt...you better switch to ethanol...I got a 5 gallon can of it friday!!!!!
You won't need it to long since you only made 820RWHP 
