Quote:
Originally Posted by RLami
Boy? appreciate it. Just trying to get some constructive conversation going. There is going to be a fixed loss of AFR given a specific blend of Eth that you use. I've never heard of this sensor being used in any application that I've researched. I can see them using it in OE applications as they are going for reliability and the average joe not knowing their head from there foot.
You just account for that loss and adjust fueling from there. So with a little math and testing you can absolutely tune for it with no 'sensor'.
Plenty of people have tested E85 knock volatility up to 13/1 AFR on boosted applications with no knock or detonation that you speak of.
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OK ms3 girl? haltech, aem, ecutek(just not our platform) all allow for the addition of a fuel alcohol sensor, because if you tune on e85 for the most power it is all about advancing the timing as far as you can due to the increased octane of the fuel, so if you tuned the car at 70% alcohol content but then ran only 20% alcohol content you WOULD have serious problems.
Ok after reading another one of your posts we mean two different things by mixing, you mean running a different percentage than 100 and i mean that you can't roll up to the pump with 3/4 of a tank of regular and top it off with e85 (unless that is how you did it every time) the other main issue is that if you mix from a 1/4 tank of gas and then fill it with e85(64% alcohol), if you go back to the pump next time and fill up with e85 you will be running a higher percentage (80% alcohol)