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Old 04-21-2015, 09:51 AM   #1
kakluote
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Anyone use Toluene to mix with 91 gas to get 104 ?

Anyone use Toluene to mix with 91 gas to get 104 ?
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Old 04-21-2015, 10:14 AM   #2
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I am almost certain there are pollution laws in the US against doing this but probably not in China. Also, you would need like a 50% tank of toluene to get 104 from 91. Furthermore, it's very hard to ignite toluene and if it's not well-mixed you will have some major issues.

I advise against using any additives other than actual fuel (SS100, MS109, GTX, etc) to raise octane in order to run higher performance maps. I do not even use W/M to run a 100 map with 93.
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Old 04-21-2015, 11:09 AM   #3
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Originally Posted by RGTI13 View Post
I am almost certain there are pollution laws in the US against doing this but probably not in China. Also, you would need like a 50% tank of toluene to get 104 from 91. Furthermore, it's very hard to ignite toluene and if it's not well-mixed you will have some major issues.

I advise against using any additives other than actual fuel (SS100, MS109, GTX, etc) to raise octane in order to run higher performance maps. I do not even use W/M to run a 100 map with 93.
it is also not allowed here.

my only options are troco acc or toluene.... which one is better?
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Old 04-21-2015, 11:14 AM   #4
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Originally Posted by kakluote View Post
it is also not allowed here.

my only options are troco acc or toluene.... which one is better?
Neither of them. I wouldn't use either to go from 91 to above 100.. No way.
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Old 04-21-2015, 11:23 AM   #5
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Quote:
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Anyone use Toluene to mix with 91 gas to get 104 ?
Toulene is actually a by-product of gasoline productionion and contains exactly the same ingredients as regular gasoline. It is an excellent anti-knock fuel at 114. It is also has greater density than gasoline and contains more energy per unit volume. It is very effective in turbo motors as it degrades more slowly than 100oct gas or Methanol when under load. Recommended not to use more than 30% Toulene in a gas mix.

Toulene was actually used as a fuel in F1 cars. They ran 84% Toulene and it was so effective at suppressing ignition they actually had to heat the fuel before injecting it.

Yes it works, but it seems impractical unless you have no access to race fuel. I use water meth to reach higher octane levels and find it convenient and you only use it when you really need it.

It is also a REAL health hazard if not handled properly.
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Old 04-21-2015, 11:26 AM   #6
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You won't find many people who have access to this in the US. It is a regulated inhalant here.
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Old 04-21-2015, 11:33 AM   #7
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Recommended not to use more than 30% Toulene in a gas mix.

It is also a REAL health hazard if not handled properly.
This.
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Old 04-24-2015, 01:07 PM   #8
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I use to run Toluene on my 450+whp SRT-4 for years when I would go racing(1/4 mile, street, etc). It was great at preventing knock and the car felt like a beast running it when compared to 100 octane fuel, heck, I could always tell when the mixture hit the injectors as the engine idled so smooth on it. I use to buy it in 5 gal drums at the paint store but the per gal price is too high now to keep using it
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Old 04-27-2015, 10:25 AM   #9
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I use to run Toluene on my 450+whp SRT-4 for years when I would go racing(1/4 mile, street, etc). It was great at preventing knock and the car felt like a beast running it when compared to 100 octane fuel, heck, I could always tell when the mixture hit the injectors as the engine idled so smooth on it. I use to buy it in 5 gal drums at the paint store but the per gal price is too high now to keep using it
what is the mixture rate?
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Old 04-27-2015, 11:37 AM   #10
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what is the mixture rate?

I used 3:1 to get 98 octane
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Old 04-27-2015, 12:02 PM   #11
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http://www.motorsportsracingfuels.com/OctaneCalculator.html

Toluene has an octane rating of 114; there is a gas station near here that sells 101 at the pump for nearly $10/gal. Toluene is generally more expensive but I'm not sure how much 114 gas is...
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Old 04-27-2015, 01:16 PM   #12
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A friend of mine use to use Xylene in is Mazdaspeed as a shortcut to race fuel.

Toluene and Xylene are the most common ingredients in off the shelf octane boosters. you have to use quite a bit to get to 100oct though. MTBE is also commonly used as a home brew octane booster.

Xylene can be purchased at home depot and lowes for the same price a Toluene. IIRC Xylene was 116 or 117oct vs Toluene being 114oct.

You would need about 4.5 gallons to hit 100oct if you had 93oct.

You would need about 5 gallons to hit 100oct if you mixed with 91oct.
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Old 04-27-2015, 01:28 PM   #13
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I did and pulled -12 timing
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Old 04-28-2015, 06:54 PM   #14
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I did and pulled -12 timing
How much did you use and what octane tune were you using?

Last edited by charrigan; 04-29-2015 at 09:31 PM.
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