Quote:
Originally Posted by Gr8ZongB58
Where did you lose timing? Seems like you gained timing with the 93 map with your added 96 gas versus your previous 91 map with 91 gas.
As long as you're not negative timing during wot, that is good.
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Yeah, the timing itself is much more advanced and that's why it gained power at high RPM.
I was talking about ignition timing corrections. Ideally those should be zero indicating that the engine is happy with the advanced in timing the DME plans. If it detects any knock, or anything makes it uncomfortable to follow the target timing, the DME will correct it, which is always a negative value. Too many corrections means the timing target is not suitable for the fuel or engine condition, it is too aggressive.
I still don't know how much correction is acceptable. In some videos I see B58 should be fine if all timings corrections are less than -3. Clearly I got too many -4, -5 with 93 map.
But my stock map gives me -6 &-7 for years with regular fuels. So I wondered if I worried too much or what.