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Old 03-10-2007, 08:43 AM   #1
Brock31
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enginuity is cool

Default Normalizing Ignition Correction

I'm trying to even out my timing graph. To do this I still have a few clarifying questions:
1)If I change all my timing correction values to 10, will I also have to alter my base timing map values?
2)In the newest revision of enginuity (0.4.1) there isn't a "knock correction" map, is the "timing advance (maximum)" the same thing?
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Old 03-10-2007, 09:13 AM   #2
Tea cups
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Quote:
Originally Posted by Brock31 View Post
I'm trying to even out my timing graph. To do this I still have a few clarifying questions:
1)If I change all my timing correction values to 10, will I also have to alter my base timing map values?
2)In the newest revision of enginuity (0.4.1) there isn't a "knock correction" map, is the "timing advance (maximum)" the same thing?
1. Yes, unless you want your motor to go boom. Your total maximum timing needs to be the same (base timing + timing advance max) as it was before. So, if the timing advance target in one cell was 4 before and you change it to 10, you would need to subtract 6 degrees from the corresponding cell in your base timing map. You do this for every cell that you change on the timing advance map.
2. The name was changed from ignition correction to timing advance (maximum) as "ignition correction" wasn't very representative of this table's purpose.
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Old 03-10-2007, 09:32 AM   #3
Brock31
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OK, so I created a table that shows the difference in values from the original "timing advance (mavimum)" base map to the revised map where I changed all the values to 10 (well actually 9.84). So...now that I have the differences for each cell I can go through my base timing map and add or subtract the cooresponding value in each cell.

Here is were I run into a problem. In a particular cell if my original value in the timing advance (maximum) map was 3.16, and I increase it to 9.84. Now...the difference between these two values is 6.68. So I should subtract 6.68 from my base ignition timing map? problem there is the value for that particular cell is 4.96. If I subtract 6.68 from 4.96, I get a negative number??? I can't have a negative number n my base timing map, can I??
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Old 03-10-2007, 10:27 AM   #4
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Yes you can.
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Old 03-10-2007, 11:13 AM   #5
Brock31
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But, do I want to, or in other words, is having a negative number in base timing a bad thing?
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Old 03-10-2007, 11:32 AM   #6
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Quote:
Originally Posted by Brock31 View Post
But, do I want to, or in other words, is having a negative number in base timing a bad thing?
I have -timing in my base timing. You're only concerned with base+advance(correction, whatever they're calling it these days).
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Old 03-10-2007, 01:20 PM   #7
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yea, - timing is ok in your base map. I have (0.4.1) and my tables are still listed like before.

Base Ignition Timing
Ignition Correction

I upgraded and it didnt change to "timing advance (maximum)"
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Old 03-10-2007, 01:29 PM   #8
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Originally Posted by druxboyz View Post
yea, - timing is ok in your base map. I have (0.4.1) and my tables are still listed like before.

Base Ignition Timing
Ignition Correction

I upgraded and it didnt change to "timing advance (maximum)"
That's because there's a new ecu definition release that is newer than what's included with 0.4.1b.
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Old 03-10-2007, 11:09 PM   #9
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oh ok, so its not the actual 0.4.1b that caused the name change, its the def.
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Old 03-11-2007, 11:04 AM   #10
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0.4.1b in the update to Enginuity which uses the latest ecu definitions (separate xml file) at the time of release. However, the ecu definitions sometimes get updated between releases of Enginuity. So, you can download the latest ecu defs ( http://www.enginuity.org/about360.html ). We should update the 0.4.1b when the new defs come out but sometimes we don't get to it in a timely manner.
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