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tune and octane ..

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Old Feb 24, 2006 | 06:47 AM
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Dead-Man Inc's Avatar
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From: Bahrain
tune and octane ..

this concerns about the custom tune i am gonna do to my evo by turbotrix ..
i know the info i must give out is .. our fuel octane in here ...
well i have been asking lots of people .. and didnt get a straight answer ..
so say it's 89 oct, some 91 .. some 92 .. and even asked someone who works in the gas company he said it's in 90s ..
the question is this .. if i send my ecu for the tune and tell them that we are running on 91 oct ... while it turns out our real oct is 89 or 92 .. is there any harm gonna be to the evo ??
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Old Feb 24, 2006 | 10:30 AM
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Octane and engine damage

If you run a higher octane gas than what you are tuned for, the only negative that could happen is that you lose a small amount of power.

If you run a lower octane of gas than what you are tuned for, the only negative that could happen is that your engine experiences detonation and is destroyed. Tell Turbo Trix about your situation and have them perform a less agressive tune than normal. Sure, you won't get as much power as you otherwise might, but you will likely end up saving lots of money on replacing your engine.

strike
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Old Feb 24, 2006 | 12:28 PM
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ah ok .. thanx ...
i will try to do more research
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Old Feb 24, 2006 | 12:47 PM
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Is there any way for you to get tuned for alcohol injection?
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Old Feb 24, 2006 | 01:00 PM
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Originally Posted by Dead-Man Inc
i know the info i must give out is .. our fuel octane in here ...
Does Bahrain use "stars" to indicate octane? Some countries (England?) use that rather than a number, but surely there must be some indication on the pump. If they do give a number, most of the world seems to use just the research octane number (RON). If that's the case you can figure the US AKI (anti-knock index, (RON+MON)/2) is 5 less.

Dave
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Old Feb 24, 2006 | 03:13 PM
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even that i get mixed reactions ..
some say we are on 92 RON .. and some 95 RON ..
i will call the Gas company it self and see the real octane by tomorrow ...
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Old Feb 25, 2006 | 10:26 AM
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need more opinions
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