100 Octane Racing Fuel
#1
100 Octane Racing Fuel
Hey guys...I was on my way home from NJ yesterday and stopped to fill my tank. I noticed that the gas station sold Street Legal 100 Octane race fuel...I thought about getting some just for kicks to see the difference but it was double the cost of the 93 high test!
Has anyone here ever run there car on 100 octane? What is the difference? Does the g run faster or pull harder? Are there any noticeable increases in power or mileage? I am curious and kinda want to fill my tank with the 100 octane at least once...
- Jay
Has anyone here ever run there car on 100 octane? What is the difference? Does the g run faster or pull harder? Are there any noticeable increases in power or mileage? I am curious and kinda want to fill my tank with the 100 octane at least once...
- Jay
#4
#5
Originally Posted by JBKFizzle45
Hey guys...I was on my way home from NJ yesterday and stopped to fill my tank. I noticed that the gas station sold Street Legal 100 Octane race fuel...I thought about getting some just for kicks to see the difference but it was double the cost of the 93 high test!
Has anyone here ever run there car on 100 octane? What is the difference? Does the g run faster or pull harder? Are there any noticeable increases in power or mileage? I am curious and kinda want to fill my tank with the 100 octane at least once...
- Jay
Has anyone here ever run there car on 100 octane? What is the difference? Does the g run faster or pull harder? Are there any noticeable increases in power or mileage? I am curious and kinda want to fill my tank with the 100 octane at least once...
- Jay
C.
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#8
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You don't need it unless you're boosted.
Higher octane does not equate to more power. Octane ratings are basically, the fuels ability to resist preignition (pinging). Therefore a higher octane gasoline is kind of actually, harder to burn than a lower octane. This is most beneficial in FI cars with higher intake temps. Higher intake temps are more vulnerable to preignition.
Higher octane does not equate to more power. Octane ratings are basically, the fuels ability to resist preignition (pinging). Therefore a higher octane gasoline is kind of actually, harder to burn than a lower octane. This is most beneficial in FI cars with higher intake temps. Higher intake temps are more vulnerable to preignition.
Last edited by GReddySetGO; 06-19-2006 at 08:30 PM.
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Originally Posted by GReddySetGO
You don't need it unless you're boosted.
Higher octane does not equate to more power. Octane ratings are basically, the fuels ability to resist preignition (pinging). Therefore a higher octane gasoline is kind of actually, harder to burn than a lower octane. This is most beneficial in FI cars with higher intake temps. Higher intake temps are more vulnerable to preignition.
Higher octane does not equate to more power. Octane ratings are basically, the fuels ability to resist preignition (pinging). Therefore a higher octane gasoline is kind of actually, harder to burn than a lower octane. This is most beneficial in FI cars with higher intake temps. Higher intake temps are more vulnerable to preignition.
It's funny how people think ALL cars will have more power w/ higher octane....
#10
#12
Actually it's not entirely true.
You will make more power on certain types of high octane gas because they burn hotter than pump 91 / 93.
If i remember correctly. VP's Leaded 112 burns the hottest.
but in any case it'd be about 5 -10 hp difference. not enough to warrant the difference in cost.
And higher octane gas is not harder to burn. Higher CR's associated with high octane gas are actually harder to ignite. And this is not to be confused with "spark blowout" which is common in forced induction cars.
You will make more power on certain types of high octane gas because they burn hotter than pump 91 / 93.
If i remember correctly. VP's Leaded 112 burns the hottest.
but in any case it'd be about 5 -10 hp difference. not enough to warrant the difference in cost.
And higher octane gas is not harder to burn. Higher CR's associated with high octane gas are actually harder to ignite. And this is not to be confused with "spark blowout" which is common in forced induction cars.
#13
#15
Within reason octane listed on the pumps is a marketing tool the numbers do not have to be accurate. Refiners sell regular and premium and report to the pipeline carrier the rough batch test quality [octane].
ODB2 engines can adjust for changes via knock sensor......they can advance a small amount from standard for better than normal and retard a GREAT AMOUNT for lower octane.
You must be careful in that ethanolized gasoline while having a high listed pump octane will be lower in power creating ability due to lower BTU [heat generating] values -------3-5% on a good day.
Horsepower and torque will be reduced on ethanolized fuel.
100 octane is usually vey high in aromatic and very high in BTU so it might produce 2-4% MORE than conventional and 5-9% more than ethanolized gasoline..............depends on how ecu reacts to differences.
ODB2 engines can adjust for changes via knock sensor......they can advance a small amount from standard for better than normal and retard a GREAT AMOUNT for lower octane.
You must be careful in that ethanolized gasoline while having a high listed pump octane will be lower in power creating ability due to lower BTU [heat generating] values -------3-5% on a good day.
Horsepower and torque will be reduced on ethanolized fuel.
100 octane is usually vey high in aromatic and very high in BTU so it might produce 2-4% MORE than conventional and 5-9% more than ethanolized gasoline..............depends on how ecu reacts to differences.