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  1. #1
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    Default $14 a gallon for 93 octane?

    .
    Last edited by Hanssen26; 05.25.25 at 10:05 PM.

  2. #2
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    Quote Originally Posted by Hanssen26 View Post
    What's so special about the Sunoco 93 octane that that the series requires to run in the JS F4 cars? Wondering why it's $14 per gallon, when I can go to the pump and get 93 octane for $4 gallon.
    Is Sunoco one of the series sponsors?

    (Maybe all "professional" series should require entrants and drivers complete a course in the economics of racing.)
    Peter Olivola
    (polivola@gmail.com)

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  4. #3
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    Default Spec Fuel = Easy to Tech

    Tim, two reasons they want a spec fuel: 1) to balance the Honda engine performance playing field so that everyone is getting "equal" power from the fuel, and 2) because it makes it much easier to test each racer's fuel for cheating.

    The tech people know the chemical "fingerprint" properties of the Sunoco fuel (dielectric constant, density, RVP, reagent reactions, etc), making it easier to confirm if a competitor has illegally added any performance improvers.

    Side note: Illinois and Wisconsin pump gas at 93 octane contains approximately 10% ethanol. My guess is the Sunoco 93 has no ethanol.
    Last edited by Jon Jeffords; 05.10.25 at 9:15 AM.

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  6. #4
    Contributing Member DanW's Avatar
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    10% ethanol will make about 4-6 hp less than 100% gasoline. There are fewer simply fewer BTUs in ethanol than gasoline.
    “Racing makes heroin addiction look like a vague wish for something salty.” -Peter Egan

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  8. #5
    Contributing Member Lotus7's Avatar
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    Quote Originally Posted by Hanssen26 View Post
    What's so special about the Sunoco 93 octane that that the series requires to run in the JS F4 cars? Wondering why it's $14 per gallon, when I can go to the pump and get 93 octane for $4 gallon.
    a cynic (not me LOL) might suggest that a dying ‘pro series’ with only 8 entries is finding ways to generate cash flow… ?
    ymmv
    Ian Macpherson
    Savannah, GA
    Race prep, support, and engineering.

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  10. #6
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    Default Bar codes

    Quote Originally Posted by Lotus7 View Post
    a cynic (not me LOL) might suggest that a dying ‘pro series’ with only 8 entries is finding ways to generate cash flow… ?
    ymmv
    Remember the bar code bs on parts in Formula Renault? Canada.
    Repaired sidepod, nose, difuser etc. DQ. No f/glass repair allowed.
    You had to buy new series parts.
    Series and clowns that organised it. Gone in 2 years

  11. #7
    Senior Member Raceworks's Avatar
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    Quote Originally Posted by Hanssen26 View Post
    What's so special about the Sunoco 93 octane that that the series requires to run in the JS F4 cars? Wondering why it's $14 per gallon, when I can go to the pump and get 93 octane for $4 gallon.
    Track prices for Sunoco 93 are higher than regular retail, although the usual markup is usually only about $3 to $5 per gallon which in some cases is actually well worth it if you don't want to go tooling around town with 30 gallons of gasoline in your trunk. So on the face of it it does seem a bit excessive.

    But that's how modern "pro" racing "sponsorships" work, especially when said "pro" series can't skim $1 million. For instance, in F1600 we pay a bit of a premium for our spec tires, even though they're identical to the club-racing tires that are on average $150 a set less from non-series tire dealers. But, we get good service each weekend, they make sure to stock more than enough tires, and they give away up to a dozen a weekend as part of the prize package.
    Sam Lockwood
    Raceworks, Inc
    www.lockraceworks.com

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