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Old 05-09-2010, 07:03 PM   #1
papabearcamaro

 
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104 octane in a bottle

Just curious about this stuff.
Is there any real benefit to using this? I know the SSs are built to run 93 octane but if this is used would the extra octane hurt anything?
Just to let you know,the car goes in for headers and a dyno tune in June so if this stuff was used I could have the car tuned accordingly. Also,it sees very little use,maybe 500 miles to 1000 miles a year so I am not worried about the extra added expense of putting it in every tank full..
These are just questions I am asking out of curiosity,I do not have it in my head to run out and buy this stuff. Thanks for everyones comments.
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Old 05-10-2010, 12:27 AM   #2
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Mostly snake oil; will provide a minor amount of octane boost, maybe 0.4 above your gasoline octane rating.
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Old 05-10-2010, 09:03 AM   #3
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It only does anything if your getting spark knock. So if your not getting sparK knock, it's a waste of money.

I wouldn't use it prior to tuning either, because you want to tune for whatever gas you will be normally using. If you have 93 octane in the area and a near stock LS3, should have no need to use octane booster.

Most of the octane boosters work pretty good. I use to have an 11 to 1 CR 468 BBC in a street strip bracket car. On 93 it would spark knock. With a couple bottles of 104+ in there it would not knock, and I could bump the timing up.
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Old 05-10-2010, 09:16 AM   #4
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this is a way to spend money for nothing.
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Old 05-10-2010, 10:12 AM   #5
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Originally Posted by ron10 View Post
this is a way to spend money for nothing.

Yup. That stuff is crap. Unless you want to buy it by the pallet. At which case, you're better off going to the gas station and filling up 100 unleaded.
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Old 05-10-2010, 01:26 PM   #6
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lol
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Old 05-10-2010, 01:46 PM   #7
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I'm not so sure the stuff is worthless. I've purchased several bottles of different brands and my butt dyno could tell the difference--even with the cheap stuff that's less than $2 a bottle. We can only get 91 octane here, but at 4,500' above sea level that's generally all we need. I'm not claiming you would see a substantial, or even measurable, timing increase on a dyno, but there's one way to find out...
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Old 05-10-2010, 04:37 PM   #8
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Waste of money if you're just putting one bottle in there. I don't know how much is in the bottle, but let's just say 16 fl. oz. That's 1/8, or .125 of a gallon.

So let's say you fill your tank up with 18 gallons of 93 octane. Then you put 16 oz of 104 octane in there.

That 16 fl oz is .00694, or 0.694% of the total volume. So 99.306% of your total fuel is 93 octane. Already it's easy to see that it's not going to make much of a difference.

93 octane x 99.306% = 92.355
104 octane x .694% = .722
92.355+.722 = 93.077 octane that you effectively end up with.
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Old 05-10-2010, 06:10 PM   #9
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A fuel's Octane rating doesn't relate to the energy content of the fuel, just the resistance to pre-detonation. Stick to 91 or higher Octane and don't worry about the additives.
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Old 05-10-2010, 06:16 PM   #10
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Just find a Sunoco around you that sells 100 octane, there's 2 around me that do
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Old 05-10-2010, 06:40 PM   #11
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keep in mind that when they say "we raise your octane 5 points" 10 points equals one octane rating so that 5 points changes your fuel from 91 to 91.5

only octane booster that works is Lucas, but if you can find race fuel, that is prefered... i blend 104 octane unleaded race fuel (sunoco gt240 plus) with 91 octane in an 11:2 ratio to effectively make a 93 octane blend.

check this out:
http://volvospeed.com/Reviews/octane_boosters.html
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Old 05-10-2010, 06:40 PM   #12
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Quote:
Originally Posted by papabearcamaro View Post
Just curious about this stuff.
Is there any real benefit to using this? I know the SSs are built to run 93 octane but if this is used would the extra octane hurt anything?
Just to let you know,the car goes in for headers and a dyno tune in June so if this stuff was used I could have the car tuned accordingly. Also,it sees very little use,maybe 500 miles to 1000 miles a year so I am not worried about the extra added expense of putting it in every tank full..
These are just questions I am asking out of curiosity,I do not have it in my head to run out and buy this stuff. Thanks for everyones comments.

Your car is designed around 93. The factory computer is pretty darn smart. It is extremely unlikely you would gain any NOTICEABLE change. If you were going FI or Nitrous then other fuel requirements come in to play. It basically consists of some petroleum distillates which may help with detonation, but that's about it.
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Old 05-10-2010, 08:00 PM   #13
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Quote:
Originally Posted by My 5th View Post
I'm not so sure the stuff is worthless. I've purchased several bottles of different brands and my butt dyno could tell the difference--even with the cheap stuff that's less than $2 a bottle. We can only get 91 octane here, but at 4,500' above sea level that's generally all we need. I'm not claiming you would see a substantial, or even measurable, timing increase on a dyno, but there's one way to find out...
Well, then you butt-dyno needs to be recalibrated.

If you truly understood how many "octane" points you were actually gaining, you would see it is absolutely minimal/barely worth noting.

And another thing... octane DOES NOT equal horsepower. Octane is a measure of fuel's compression before it ignites. Too low of octane level cause knock due to the fuel igniting from compression and not spark. Your computer counteracts for this by reducing timing.

93 octane is sufficient for an L99 or LS3. Even at 91 you should be fine. Unless your area is plagued with shitty quality gas, there is no reason to seek out anything of higher octane. The only people needing higher octane on this forum are for members with A.) Forced induction B.) Certain Nitrous applications or C.) Built motors with higher CR.
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Old 05-11-2010, 08:59 AM   #14
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Quote:
And another thing... octane DOES NOT equal horsepower. Octane is a measure of fuel's compression before it ignites. Too low of octane level cause knock due to the fuel igniting from compression and not spark. Your computer counteracts for this by reducing timing.
This is truth.

You guys and your "noticeable gains".

Good to know I could make millions selling bullshit in a bottle though when I'm ready to retire!
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