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Title: 70->80mm afm change results in ps_w cap mid range Post by: darylw357 on August 01, 2025, 10:22:36 AM Z20LET with a mild hybrid turbo and 20psi at 3.5k, changing the afm from the standard 70mm to an LEH 80mm one results in much greater logged airflow and I seem to be hitting the ps_cap. I think this is what is causing my afr to spike lean at the same time. Have tried significantly underscaling kfkhfm with no luck and adjusting the ve model via urlnm which does lower ps_w but causes other issues and I'm not sure if or how I should be adjusting that.
mlhfm is taken from the z20leh ecu so it should be correct. Attached is a log with mlhfm underscaled by 2.5% but stock kfkhfm etc. Any ideas or where I should be looking next? Title: Re: 70->80mm afm change results in ps_w cap mid range Post by: darylw357 on August 01, 2025, 10:40:13 AM The log, clipped because of the file size limits
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