21' +91 base calibration flash pro carb. 2% knock retard? no knock.

FK2 Civic Type R 2015-2017, FK8 Civic Type R 2017-2021, FL5 Civic Type R 2023+ and Integra Type S 2024+
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ardent
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Joined: Mon Dec 27, 2021 8:15 pm

21' +91 base calibration flash pro carb. 2% knock retard? no knock.

Post by ardent »

on +91 base calibration flash pro carb for 21' type r.

from the log, it get 2% knock retard at most. and once in 4% retard.
could it be the cold weather and the a/f ratio? everything seem normal.
Screenshot 2021-12-27 190958.png
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datalog0015.zip
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anything I should be concern about?
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Hondata
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Re: 21' +91 base calibration flash pro carb. 2% knock retard? no knock.

Post by Hondata »

For the FK2/FK8 'K.Retard' is not used; the individual cylinder knock retards 1 to 4 are used. 2 degrees knock retard is acceptable.
ttrim.png
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Fuel is about 4-5% rich, but that is not too bad. The short term trim needs to be a little negative on the FK2/FK8 otherwise the lambda can go into oscillation.
Hondata
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