For timed runs, people under-estimate the effects of the "variables", the biggest being the driver. Being a consistent driver for a drag race is very difficult, as anyone who's raced can attest to. 5 or 6 tenths look big on paper, it's a blink of an eye for a driver. I've never put my Mav on a track, but I've hobby raced a lot of other cars, and consistency is difficult with track conditions, let alone out on a country road or parking lot. Just fooling around, I'm getting about a half second difference to 60 between 87 &93 with my EB. A dyno would be a much better tool to show actual gains/losses as it relates to fuel. But I'm sure the Ford spec's would be accurate, if not slightly understated, as many of the EB's are.
So you put a row of gas cans in the trunk, all of which drain into the tank . . .They only wanted You filling up Gas Cans not driving your car up to the pumps and filling it up.
the hybrid, from all the information we have, has no use for the extra. This is really about the ecoboost.
more importantly, is it aware that you're trying to feed it gas?Are the Teslas aware that you're trying to race?
ask the Tesla?I wonder which one tastes better, 87 or 91 ? Let you all know tomorrow.
One thing I'm curious about is how long the octane learning takes. Some people say it's after you fill up, some say it takes a whole tank. I personally can't imagine it would move that fast, otherwise the whole point of the octane modifier would be kind of moot. Knock events lower the modifier, so I imagine time without them is what increases it. But I wonder if that time value is variable as well, especially if your modifier was in the toilet. Stuff a tuner would know, I'm sure. I'm used to platforms where it either knocks or it doesn't, and timing is pulled or added accordingly in real time. Not that the Ecoboost doesn't do that, but the modifier in theory prevents it from always riding the edge of knock. I'm far from any sort of expert, however.
You can monitor or data log the Octane Adjust Ratio Learned along with timing advance and knock events with an OBD-II interface and you'll see that it begins to adjust within a few miles of filling up. It does not take anywhere near a full tank, and anyone stating that it does doesn't understand how OAR operates.
As Tbone explained well, all the various sensors that relate to knock, timing, boost, etc...cycle many times per second. There is no "waiting around".... Adjustments are made instantaneous to conditions.
My understanding is this would be most effective at high altitude or under high temperature.
Makes sense, thanks for that. So it will take at least a little while to max out the modifier for the best performance?
They only wanted You filling up Gas Cans not driving your car up to the pumps and filling it up.
Are the Teslas aware that you're trying to race?
ask the Tesla?I wonder which one tastes better, 87 or 91 ? Let you all know tomorrow.
older systems like Northstar listen for pre-knock, and immediately cut back on timing. This would happen as you accelerated; it didn't take a few seconds.
With the "waiting around" thing, I was talking about the adjustment modifier, not the knock response itself. As someone else said, it takes a few tanks to get a "pure" 91 tank and therefore the highest modifier value.
3000/Year? I do that in a month and a half!
lol No this is what I use to race .Are the Teslas aware that you're trying to race?
