295 hp, 272 tq, 1 bolt on, Mase tuned.
Apr 25, 2007, 05:16 PM
#31
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Think of why we use high octane race fuels. By using a slower burning, less erratic combustion fuel, we can run leaner AFR's and more ignition advance, which results in more power. This also allows us to run more boost safely. Fuels are measured by knock resistance. The higher the octane, the slower more controlled the fuel burns. This raises the detonation threshold of the fuel.
. I can't speak as to why you use race fuel but I use it so that I can ward off detonation, not so that I can run more timing. I run race fuel so that I can turn boost up which increases burn rate meaning I have to take timing out. I run the same AFR's on pump and race fuel and I'll choose the one that meets my antiknock and burn rate specifications. It seems to me you are confusing antiknock with burn rate of a fuel.
Apr 25, 2007, 05:44 PM
#33
I like VP import because it burns fast . I can't speak as to why you use race fuel but I use it so that I can ward off detonation, not so that I can run more timing. I run race fuel so that I can turn boost up which increases burn rate meaning I have to take timing out. I run the same AFR's on pump and race fuel and I'll choose the one that meets my antiknock and burn rate specifications. It seems to me you are confusing antiknock with burn rate of a fuel.
. I can't speak as to why you use race fuel but I use it so that I can ward off detonation, not so that I can run more timing. I run race fuel so that I can turn boost up which increases burn rate meaning I have to take timing out. I run the same AFR's on pump and race fuel and I'll choose the one that meets my antiknock and burn rate specifications. It seems to me you are confusing antiknock with burn rate of a fuel.i'm sorry, are you actually saying that higher octane fuels can't have ignition advanced over lower octane fuels? If you are not able to advance timing more on race gas, and are using the fuel to ward off detonation....then you are running too much ignition timing in the first place on pump gas.
Apr 25, 2007, 05:47 PM
#34
Originally Posted by mase
you're right 11.3-11.5 is not pig rich, I never said it was. What i will specify is there is no reason running evo's at 11.3. Its still too conservative IMO.
CJ
Apr 25, 2007, 06:13 PM
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i'm sorry, are you actually saying that higher octane fuels can't have ignition advanced over lower octane fuels? If you are not able to advance timing more on race gas, and are using the fuel to ward off detonation....then you are running too much ignition timing in the first place on pump gas.
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