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Post by martroy on Jul 22, 2019 7:11:41 GMT -5
Hi,
If you datalog, you see MAT retard when I have 130 degree and the table will put MAT retard when it's higher than 160 degree. I didnt have this issue before using MAT/CLT correction. Someone could explain me why?
Thanks, Martin
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Post by wesk on Jul 22, 2019 11:49:52 GMT -5
Because the value used for MAT lookup becomes a combination of MAT and CLT. That is what this feature does.
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Post by martroy on Jul 22, 2019 14:01:43 GMT -5
Because the value used for MAT lookup becomes a combination of MAT and CLT. That is what this feature does. Do you know what is the right formula used? That way, I will understand what I need to change and how to ? Thanks
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Post by wesk on Jul 24, 2019 16:11:56 GMT -5
It is explained in image of the graph you linked. The easiest way to visualize it is to simply look at that curve with the engine running a rev it up.
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Post by Stinger on Jul 24, 2019 20:09:17 GMT -5
Hover over the blue "?" in the images above for detailed explanation.
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Post by martroy on Jul 25, 2019 7:10:53 GMT -5
I'll try to be more clear regarding my question.
If you log datalog at 787,388, you see 0,1 Spark retard because of MAT with a temp of 134,5. Here's my understanding: Spark MAT retard is effective with Estimated Air Intake (witch we dont see in logs) if configured.
As the settings in my tune for MAT Retard, 0,1 degrees retard should be 160,5 Temps. If I check the load, it should be MAP * RPM so in that case, will be 34,7 * 2010 = 69747 As the tune, 69747 should be close to 25,9%. So the question is, what is the formula to get 160,5 to 134,5 with a correction factor of 25,9% ?
Again, thank you guys for your time.
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