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

Octane

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Old Feb 25, 2009 | 02:56 PM
  #1  
pgh1992's Avatar
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Car: '92 Camaro
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 Feb 25, 2009 | 05:22 PM
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Timothayyy's Avatar
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From: Virginia
Car: 1992 Firebird
Engine: 350TBI
Transmission: 700r4
Axle/Gears: Ford 9in 4.10
Re: Octane

87 octane is all it needs.
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Old Feb 28, 2009 | 02:35 PM
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Misundaztood717's Avatar
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From: Temple, Texas
Car: 1991 Chevrolet Camaro RS
Engine: lo3 305
Re: Octane

Originally Posted by Timothayyy
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 Feb 28, 2009 | 02:52 PM
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Timothayyy's Avatar
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From: Virginia
Car: 1992 Firebird
Engine: 350TBI
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Axle/Gears: Ford 9in 4.10
Re: Octane

Originally Posted by Misundaztood717
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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