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02-07-2013, 09:08 PM | #1 |
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100 octane race gas: 91 octane ratio?
I'm from California where they don't carry 93 octane but I found a gas station that has 100 octane. I was hoping someone out there could help me with a chart of how much 100 octane to 91 octane to come up with 93. Any thoughts?
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02-07-2013, 09:13 PM | #2 |
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02-07-2013, 09:14 PM | #3 |
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dont waste your money
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02-07-2013, 09:16 PM | #4 |
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02-07-2013, 09:17 PM | #5 |
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02-07-2013, 09:30 PM | #6 |
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the price of 100 octane is crazy high. i cant see any gains from going from 91 to 93 noticable but you will notice the price increase. another downside is that if you do get a tune to make use of the couple extra octane points, you will be bound to stay within a certain radius of the station that offers 100
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02-07-2013, 09:36 PM | #7 | |
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Quote:
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02-07-2013, 09:45 PM | #8 |
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But wait a second...
Isn't the car tuned from the factory for 93 octane? That's what is recommended - right? I was told and read, that using 91 octane was OK But if it's already set up for 93, and we put it in, we don't need to get a tune! |
02-07-2013, 10:32 PM | #9 |
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Just be sure the 100 octane isn't leaded. I'm not sure if they even offer leaded fuels out in CA, but I know at the tracks here in MI they'll have some 110 (somewhere around that), but it's leaded.
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02-07-2013, 10:37 PM | #10 |
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Why does California not sell 93 octane?
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02-07-2013, 10:43 PM | #11 |
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Uhhhh, just get tuned for E-85!
I'm currently using a setup that allows me to flip a switch between a 93 tune and a E85 tune; 300whp and 350whp. I just have to make sure that I run the gas down real low and fill with the other gas if I want to flip from one tune to the other.
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02-07-2013, 10:59 PM | #12 |
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Lots of race fuels are leaded. Don't put it into your car unelss you want to kill your catalytic converters.
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02-07-2013, 11:07 PM | #13 |
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Yup Fatoni is correct. I've tried 100 and didn't feel any major difference between 100 and 91. Butt dyno said that the throttle response is a tad better but again that's butt dyno. At $8.29 a gallon(when I pumped), it can get pretty pricey fast.
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02-07-2013, 11:53 PM | #14 |
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Most if not all 100 octane here in Cali is unleaded.
We don't use E85 here, well at least in SoCal. Its eithe gas, hybrid or electric. |
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