Buggy Air temp timing retard feature?

s300 and SManager software questions & answers
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smracing
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Joined: Sat Sep 17, 2005 5:38 pm

Buggy Air temp timing retard feature?

Post by smracing »

I was messing with the air temp timing retard feature today and have a problem or question.

I setup my columns 120, 140, 161, 171, 199. I zeroed all of the columns. Car drives fine. I put -2.00 degrees in at 140deg and left all of the rest at zero. The car pulls so much timing at 35-100% throttle that timing goes to -4 degrees and you can hear the exhaust get obnoxiously loud. I see it pulling this timing by looking at the display when I hit the gas. If I zero the timing out car goes back to running fine.

I will try and get a datalog tonight. I am tuning a simple D16Z6 that is waiting for a turbo. Just wanted to test this feature.

My air temps run around 100-130 on a hot day.

I am assuming the program interpolates between temperature ranges in the boxes.
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Hondata
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Post by Hondata »

Do not change the first temperature value from the default value. eg use -40, 120, 140, 170, 200 I'll change SManager to prevent this for the next release. Interpolation is used, so if your ignition changes with temperature are linear you don't need that many values.
Last edited by Hondata on Fri Aug 25, 2006 8:00 pm, edited 1 time in total.
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smracing
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Post by smracing »

I changed the water temp compensation values as well, will that cause a problem.
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Hondata
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Post by Hondata »

Until the next release, do not change the first temperature value on the IAT and ECT ignition comp high than the lower ambient temperature.
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smracing
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Post by smracing »

Changing the values back seems to have solved any issue with the IAT.
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