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110 octane to 100 octane safe?

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Old 07-30-2008, 10:33 PM
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Default 110 octane to 100 octane safe?

Hi

I tuned my car on 110 actane and now Ive found some 100 race gas at the gas pump. Is it safe to run 100 octane on a car that was tuned with 110?

Thanks
Old 07-30-2008, 11:47 PM
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Default Re: 110 octane to 100 octane safe? (Poey2)

NO. Dont even try it.
Old 07-31-2008, 06:19 AM
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Default Re: 110 octane to 100 octane safe? (champLSinteg)

I actually tried it but I didnt smash on the gas and it cut off. Guess its not safe. Thanks for the reply
Old 07-31-2008, 07:07 AM
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Default Re: 110 octane to 100 octane safe? (Poey2)

as long as you dont boost on it. Why dont you tune on pump gas as well?
Old 07-31-2008, 07:30 AM
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Default Re: 110 octane to 100 octane safe? (champLSinteg)

The car was tuned on 91 low boost and 110 high boost. I can drive on low boost. Then I found some 100 at a gas station and was wondering if they would work.

I dont know if I want to get it tune for 100 octane since its cheaper and more available at the pump than 110.
Old 07-31-2008, 07:49 AM
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Default Re: 110 octane to 100 octane safe? (Poey2)

how much are you making on both?
Old 07-31-2008, 01:45 PM
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Default Re: 110 octane to 100 octane safe? (champLSinteg)

Car was making 400 on 91 and 450 on 110. Tuned by Derrick of Parris Engine Dynamics.
Old 07-31-2008, 11:01 PM
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Default Re: 110 octane to 100 octane safe? (Poey2)

What is low boost and what is high boost?

Just run the low boost on 91. 400 is more than enough for the street. No need to pay more at the pump anyway. I made 425 on 15psi and its completely useless on the street LOL
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