State your Octanes!
May 20, 2010, 06:54 PM
#21
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The standard in California is 91 (more accurately, CA, NV, AZ 91, which is really a watered-down 91). Outside of the various race tracks, you can still find 100+ octane gas. In Southern California, you can find it at some Alliance stations. Also, I've heard (but haven't verified) that there are some Sunoco stations in Southern Los Angeles that sell race gas.
May 20, 2010, 06:57 PM
#22
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Oh, and SOG... to answer your question: I don't think you are going to see much of a difference in anything (power, economy, etc.) by running higher octane gas without a tune. I know that my car experienced a bit of a knock/retardation when I was doing a stock dyno run, but even if higher octane gas would fix that, It'd only be a couple of horsepower at best.
May 21, 2010, 12:55 PM
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May 21, 2010, 01:24 PM
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no it isnt. the maunal states very clearly that 91 octane is the fuel that our stock map is designed for. There is no threat of knock retard on the stcok map at 91 making it POINTLESS to run higher.
There are plenty other members who understand what an octane count means when it comes to a turbo car. Running 94 or 93 when 91 is all that is needed will not make more horsepower or torque, and doesnt make the car any safer to drive.
The reason higher boost and timing tunes run 93 or 94 or e85 is because they can run larger amounts without having issues with knock. This of course is completely dependant on each particular suitation and car.