Fomo, I'm going to try a little test for you sometime this weekend. I'm going to pull 10 degrees timing and change the "min allowed learned octane for knock learning" from -1 down to -2
I expect to see my LOR to go below -1 in that case....Currently in my tune I sit between -.80 and -.96
I think you maybe looking too deep into the LOR stuff....I treat it like a LTFT but for spark...I don't think you have to worry about changing those values and the knock strategy, that stuff is separate as far as the total amount the knock sensors can add or pull and also degrees per second that the sensors can add or pull. And at what load and speeds the knock sensors are allowed to add and pull.
If you are at constantly at -1 LOR then I'd say you have 1 of 2 things going on or both even. Your fuel octane is higher than you think and or your spark curve in under advanced.
If I leave the -1 value alone and keep advancing my spark curve then It should never get to -1.
If I pull timing and lower the -1 to -2 then the ECU will continue to scale the spark curve until it's happy with the amount of knock it's seeing..To me it's kinda like the threshold limits that are in the STFT's for the 02 sensors......They are around +-25%....You could just use whatever fuel you want and have a bad fuel curve and mix fuels and let the 02 sensors adjust but that's not ideal...a well tuned car will have STFT's less than 5% and less than 3% if you are good otherwise the LTFT's will make a long range scaling
So I could pull all this timing then let the LOR make the adjustment but I'd rather have the base spark tables closer to where they should be
FOMO did torrie activate some of the "end user options" for you? You could always add a couple degrees and see if your LOR raises and goes closer to 0....Didn't you say you are consistently at -1?
I expect to see my LOR to go below -1 in that case....Currently in my tune I sit between -.80 and -.96
I think you maybe looking too deep into the LOR stuff....I treat it like a LTFT but for spark...I don't think you have to worry about changing those values and the knock strategy, that stuff is separate as far as the total amount the knock sensors can add or pull and also degrees per second that the sensors can add or pull. And at what load and speeds the knock sensors are allowed to add and pull.
If you are at constantly at -1 LOR then I'd say you have 1 of 2 things going on or both even. Your fuel octane is higher than you think and or your spark curve in under advanced.
If I leave the -1 value alone and keep advancing my spark curve then It should never get to -1.
If I pull timing and lower the -1 to -2 then the ECU will continue to scale the spark curve until it's happy with the amount of knock it's seeing..To me it's kinda like the threshold limits that are in the STFT's for the 02 sensors......They are around +-25%....You could just use whatever fuel you want and have a bad fuel curve and mix fuels and let the 02 sensors adjust but that's not ideal...a well tuned car will have STFT's less than 5% and less than 3% if you are good otherwise the LTFT's will make a long range scaling
So I could pull all this timing then let the LOR make the adjustment but I'd rather have the base spark tables closer to where they should be
FOMO did torrie activate some of the "end user options" for you? You could always add a couple degrees and see if your LOR raises and goes closer to 0....Didn't you say you are consistently at -1?
