Quote:
Originally Posted by scheherazade
That makes sense to me.
Each run is hotter than the previous.
I can see how the previous run's adaptation would be inadequate for the next run.
I don't know the actual adaptation duration.
I just know it takes a little while to adapt enough to not have to pull timing anymore. Especially if there is an extreme change.
-scheherazade
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Oh, I don't mind the timing being pulled at all....in fact I welcome that.
It's just that I don't like it constantly happening because of a knock event.
It's the knock that bothers me.....not reduced timing.
In any case, I just tune for as close to the stock timing curve as possible, given my boost and octane.
I think this is the safest approach until someone proves otherwise. Especially considering that the stock curve is most likely designed to give the best mechanical leverage of the piston onto the crankshaft.
As far as adaptations go......I think most of us who drive passively in traffic and then go WOT on occassion will never get the benefit of any long-term adaptation. Conditions are just too dynamic in daily driving for any kind of adaptation to stick when you go from one extreme to the other.
So really, all we are left with is short term adaptation......which is knock reaction, no?