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08-31-2011, 08:58 PM | #23 |
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GIAC Stage 1 is ready to flash at your local GIAC dealer. Give them a call and set up your appointment today!
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01-23-2012, 11:16 PM | #24 |
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An update...
We are up to 385 hp and 385 ft lbs at the rear wheels on race fuel with GIAC Stage 1+. IAT is right at 37C and turbo duty cycle at 35% at Redline! Stage 1+ only requires FMIC, Intake and high flow mid pipe. Yes, you do not need high-flow catted or catless DP's. Up next...we will install a set of AR catted DP's just to see if we pick up power. |
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01-24-2012, 09:59 AM | #25 | |
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01-24-2012, 10:05 AM | #26 | |
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I think thats because out West(in CA) 91 octane is about as high as you can find/buy. |
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01-24-2012, 10:41 AM | #27 | ||
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What you have on the car is probably Stage 1 with 93 octane, a race fuel map is available for you. Get the handheld switch and you can have stock, 93 octane and race fuel map switching capabilities. There will be a Stage 2 as well very soon. Last edited by HP Autosport; 01-24-2012 at 12:07 PM.. |
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01-24-2012, 11:23 AM | #28 | |
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01-24-2012, 11:40 AM | #29 | |
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02-01-2012, 03:05 PM | #32 | |
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91 Octane. |
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02-22-2012, 11:16 PM | #34 |
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03-16-2012, 05:15 PM | #36 |
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03-17-2012, 12:55 AM | #37 |
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Do you guys know if the octane is the "same" between different countries? Or does the way we measure differ between countries?
I drive mine on 98 octane as that is the most common in Sweden. It would be ok to use 95 octane but the price difference is to little to not always run it on 98 octane. Not sure if they sell 100 octane any more over here. But would 98 octane in Sweden also be 98 octane in the US? Sorry if this is a stupid question but I just assume there is some difference... ;-) |
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03-17-2012, 02:16 AM | #38 |
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Nope, they're different between Europe and the US. I forget the math but I think 98 over here is equal to 93 in the states.
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03-17-2012, 07:52 PM | #39 | |
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I'll try my best. Octane rating is derived differently in the US vs. how it is derived in the UK, Europe, S. Africa, and Australia. There are 2 main tests used to detect the octane rating of a fuel. There are RON and MON. RON is "research octane number". It is used in the UK, Europe, S. Africa, and Australia. MON is "motor octane number". PON is "pump" octane number". It is derived by the (R+M)/2 method. So, it's an average of both test methods. It is used in N. America. On average, MON results in an 8-10 point lower octane number. PON results in a 4-5 point lower octane number. Using that info a PON of 91-AKI (anti knock index) rating in N.America would be about 95-96 RON rating outside of N.America. A PON of 93 rating would be about 97-98 RON in Europe and Australia. Both RON and MON methods use a variable compression ratio engine. RON uses a lower rpm, around 600rpm, to run it's test. MON uses a higher rpm, around 900rpm, variable ignition timing, and pre-heated fuel in order to create a higher stress load on the engine. In terms of testing method, MON seems to be a better indicator of how the fuel responds as the test method tries to better mimic daily driving conditions. Many people say that US gasoline is of lower quality, but I think that's the result of many people not understanding the rating system. From that, people have assumed that RON's larger numbers are thus "better" than the number we see in the US and N. America. However, once you know how the numbers are derived, you then know that N. American gasoline is just as good as Euro gas in terms of octane rating. There are some factors, like sulfur content and the use of ethanol, in US gas and diesel fuels that contribute to a perception of "inferior" US and N.American fuels. Euro regs are stricter on sulfur content especially in diesel. But, US fuel production is getting stricter as well. It costs more money to produce ultra low to 0 sulfur fuel and that's one reason Euro fuels are more expensive. As for ethanol, 10% formulations are the norm in the N. American market. By 2010 nearly all US gasoline is E10, or 10% ethanol. There are some limited markets that have less, down to 0 ethanol. Many Euro markets have E5-5% formulations, with E10 becoming more common. Australia has E10 available as well. Ethanol has a lower thermal content and thus lower MPG per volume, but it's also a high octane fuel, and it's used to help increase octane rating. Edit: added some corrections Last edited by RPM90; 03-18-2012 at 07:33 PM.. |
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03-18-2012, 06:02 AM | #40 |
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All correct, and to summarize:
91 US is equivalent to at least 95 euro octane 93 US is equivalent to 98 euro octane Note on page 1 of this post the significant power difference between standard fuel (91US) and race fuel (100US): 18HP which is around 5% !! |
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03-18-2012, 07:37 PM | #41 | |
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It sells for about $6.40 per gallon. Not bad if you've got software for it, considering 93 is going for about $4.20 in my area. |
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03-19-2012, 03:35 PM | #42 |
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Interesting! My Swedish 1M instruction book recommend 98 euro octane but also say it can be driven on 95 euro octane. So the recommendation is 93 US or 98 euro octane over here. Do you have the same recommendation for your US specced 1M? Just curious.
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03-22-2012, 12:01 AM | #43 |
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GIAC 1M software
GIAC Stage 2, and Stage 2 Race Fuel maps are ready to flash as well!
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08-22-2012, 12:33 PM | #44 |
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GIAC has flashes for 91 and 93 octane fuel, as well as 100 race fuel.
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