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Old 02-24-2014, 12:03 PM   #1
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Default Making an ignition table more conservative - need feedback

I recently replaced my motor after a lubrication-related catastrophic failure of my last motor. The last motor was tuned at DIYAutoTune after installing a Megasquirt PNP V2.

I'm doing a track day this weekend and won't have time to get to the dyno between now and then, so I'm looking to make my ignition table more conservative to give a little bit of cushion.

The three tables below show 1) the original dyno tune, 2) my proposed changes, and 3) the difference between the two. I scaled back the timing in the boosted rows (the 100+ rows) since I figured that's where there was potential for knock.

Any critique or feedback on the approach?






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Making an ignition table more conservative - need feedback-diy%252520ignition%252520table.jpg   Making an ignition table more conservative - need feedback-revised%252520ignition%252520table.jpg   Making an ignition table more conservative - need feedback-difference%252520-%252520ignition%252520table.jpg  
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Old 02-24-2014, 02:17 PM   #2
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is this thing meth cooled?
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Old 02-24-2014, 02:33 PM   #3
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No. Why, timing looks too aggressive?
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Old 02-24-2014, 02:42 PM   #4
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fwiw my max advance at 200kpa was 19. I stopped there basically because I hit my power goal and figured that was conservative street timing at that level and our fuel.
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Old 02-24-2014, 02:47 PM   #5
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at 200kPa my 1.6L was safely agressive at 16.
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Old 02-24-2014, 03:02 PM   #6
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IIRC the maximum timing I was able to pull on a 1.6L using the best pump gas available and some octane booster was something like 24* at 160kPa. Now 33* is full-det area, unless of course the base was not calibrated.
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