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Octane Boost - Split From Superflash's Build-up Topic

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Old 08-29-2007, 02:50 AM
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Yea for my application I'm not about to pour any toluene into my system but the article reposted on 3800pro is pretty informative.
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Old 08-29-2007, 10:00 AM
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I've probably run close to 20 gallons of Toluene through my car over the last 3 or 4 years with great success. I use it to bump octane for testing smaller pulleys only.
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Old 08-29-2007, 07:53 PM
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Will, I've a question for ya regarding the Touluene.
I've a buddy that races semi professionally in the local Nascar Dirt tracks. I don't recall what octane racing fuel he buys but If he mixes Toluene 50/50 with pump 93 he should get 107-110.

Would this be simular to racing fuel? I think he buys 104, not sure but I can find out. Just trying to save him some green$$$
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Old 08-29-2007, 08:02 PM
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No, the aromatic content is too far off gasoline to run it that strong. He'* probably restricted on his fuel anyway.

The rule of thumb (at least on streetable cars) is to never exceed 30% toluene. That being the case, the highest safe octane he could produce would be 100 octane (from 93 octane base). Race gas would be better for performance.

Again, I use it for octane/pulley testing ONLY.
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Old 08-29-2007, 08:14 PM
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Noted and Thank you. I didn't even think about the regulations he has to run under... and you most probably right that he couldn't run it even if he could.
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