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interesting stuff to read
Just popping in
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Posted on: 2011/10/24 22:48
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Re: interesting stuff to read
Just popping in
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for the people that like to home brew


Formula #1 - Toluene
R+M/2.........114
Cost...........$2.50/gal
Mixtures with 92 Octane Premium
10%...........94.2 Octane
20%...........96.4 Octane
30%...........98.6 Octane
Notes: Common ingredient in Octane Boosters in a can. 12-16 ounces will only raise octane 2-3 *points*, i.e. from 92 to 92.3. Often costs $3-5 for 12-16 ounces, when it can be purchased for less than $3/gal at chemical supply houses or paint stores.

Formula #2 - Xylene
R+M/2.........117
Cost...........$2.75/gal
Mixtures with 92 Octane Premium
10%...........94.5 Octane
20%...........97.0 Octane
30%...........99.5 Octane
Notes: Similar to Toluene. 12-16 ounces will only raise octane 2-3 *points*, i.e. from 92 to 92.3. Usually mixed with Toluene and advertised as *race formula*.

Formula #3 - Methyl-tertiary-butyl-ether (MTBE)
R+M/2.........118
Cost...........$3.50/gal
Mixtures with 92 Octane Premium
10%...........94.6 Octane
20%...........97.2 Octane
30%...........99.8 Octane
Notes: Oxygenate. Very common in octane booster products. Has lower BTU content than toluene or xylene, but oxygenate effect makes the gasoline burn better and produce more energy.

Formula #4 - Methanol or Ethanol
R+M/2.........101
Cost...........$0.60 - $1.75/gal
Mixtures with 92 Octane Premium
10%...........94.3 Octane (Methanol)
10%...........94.7 Octane (Ethanol)
20%...........Not Recommended
Notes: Methanol is wood alcohol. Ethanol is grain alcohol and found in Gasohol in 10% ratios. Both alcohols are mildly corrosive and will eat gas tank linings, rubber and aluminum if used in excessive ratios. Main ingredient in "Gas Dryers", combine with water.

Formula #5 - Isopropyl Alcohol and Tertiary Butyl Alcohol
R+M/2.........101
Cost...........$0.60-$1.50/gal
Mixtures with 92 Octane Premium
10%...........94.5 Octane
20%...........Not Recommended
30%...........Not Recommended

Notes: Similar to Methanol/Ethanol. Isopropyl Alcohol is simply rubbing alcohol.

Sample Mixture
To make your own octane booster, it is easiest to make up a large batch, and then bottle it up in "dosage-size" uses.
Below is the basic formula of one of the popular octane booster products. To make eight 16 ounce bottles (128 oz = 1 gal):

100 oz of toluene for octane boost
25 oz of mineral spirits (cleaning agent)
3 oz of transmission fluid (lubricating agent)
This product is advertised as "octane booster with cleaning agent *and* lubricating agent!". Diesel fuel or kerosene can be substituted for mineral spirits and light turbine oil can be substituted for transmission fluid. Color can be added with petroleum dyes.


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Posted on: 2011/12/15 3:06
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Re: interesting stuff to read
Home away from home
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2011/1/31 2:06
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When I use to drag bikes n cars. Bout 4 yrs ago got a good fuel mixture of Avgas-20% methyl benzene (tol) and 5% nitroethane. The tol was use to mix the nitro in cause it wouldnt mix with just the avagas. It ran a tad hotter, but ran better than methanol and tol.

Posted on: 2011/12/15 4:27
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Re: interesting stuff to read
No life (a.k.a. DattoMaster)
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From under the Firmament LOL no twiglight effect BS
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Sample Mixture
To make your own octane booster, it is easiest to make up a large batch, and then bottle it up in "dosage-size" uses.
Below is the basic formula of one of the popular octane booster products. To make eight 16 ounce bottles (128 oz = 1 gal):

100 oz of toluene for octane boost
25 oz of mineral spirits (cleaning agent)
3 oz of transmission fluid (lubricating agent)
This product is advertised as "octane booster with cleaning agent *and* lubricating agent!". Diesel fuel or kerosene can be substituted for mineral spirits and light turbine oil can be substituted for transmission fluid. Color can be added with petroleum dyes.

great formula!!!

Are those gallon prices right? seem awful cheap!!!

The Indians mess with all kinds of flex fuels with now the gov scientist about to aprove LnG with 2 stroke and other mixes which supposedly increase economy and cleaner running a fuel is not cheap in those countries.

Posted on: 2012/2/7 2:09
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"Australia" is formed by all its geographically listed territories "including" Norfolk, Christmas & Cocos Islands. The word include excludes all else before it therefore you have no legal rights.
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Re: interesting stuff to read
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D, I'm suprised that BMW mechanics would recommend cut springs when Australia government says it is dangerous.

Posted on: 2012/2/7 5:18
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Re: interesting stuff to read
No life (a.k.a. DattoMaster)
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From under the Firmament LOL no twiglight effect BS
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Hahaha, yeah wanted to comment on that! I did it to my old 240z years ago and used shorter koni inserts many years of headaches (no internet info thats why), handled better than any Bimma! with steel metallurgy hard to go past Wasabi land.
However Germans make great

Posted on: 2012/2/7 8:01
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"Australia" is formed by all its geographically listed territories "including" Norfolk, Christmas & Cocos Islands. The word include excludes all else before it therefore you have no legal rights.
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