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Reload this Page Octane

TBI Throttle Body Injection discussion and questions. L03/CFI tech and other performance enhancements.

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Old 02-25-2009, 03:56 PM   #1
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Car: '92 Camaro 25th Anniversary
Engine: 305
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Octane
What is the recommended octane I should run in the Lo3, and what is the highest octane I can run?
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Old 02-25-2009, 06:22 PM   #2
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Car: 1992 Firebird, 1990 IROC
Engine: 383 TBI, S/C 350 TPI
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Re: Octane
87 octane is all it needs.
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Old 02-28-2009, 03:35 PM   #3
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Car: 1991 Chevrolet Camaro RS
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Re: Octane
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Originally Posted by Timothayyy View Post
87 octane is all it needs.
But will lo3s run better with higher octane? Will it affect gas mileage or horsepower the higher or lower the octane?
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Old 02-28-2009, 03:52 PM   #4
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Join Date: Dec 2007
Location: Virginia
Posts: 947
Car: 1992 Firebird, 1990 IROC
Engine: 383 TBI, S/C 350 TPI
Transmission: Saving for a T56, Built 700r4
Axle/Gears: LS1 rear 3.42 gears, Ford 9in

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Re: Octane
Quote:
Originally Posted by Misundaztood717 View Post
But will lo3s run better with higher octane? Will it affect gas mileage or horsepower the higher or lower the octane?
It will give you no gain. Unless you got aftermarket heads or pistons that change your compression ratio, theres no point in spending more on gas.
The engine was designed to run on 87 octane.
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Reload this Page Octane
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