Originally Posted by
superman07
what calibration are you starting from? this is what seems to work for me.
Injector and TB data must be correct first.
I turn off the cylair filter and anticipation. I temporarily lock the cams to a single mapped point. I then ensure my MAF is correct and fueling confirms I have a good initial air mass value.
I turn the cylair features back on, and return my mapped points to how I expect to drive the car.
I went into the Airflow / Speed density tab and made sure my tables reflected the proper limits and thresholds for my car. I did not change max aircharge load, when I tried the car went crazy. It is still at 1.0. Dont change these values later unless you want to go back and re verify SD.
I created histograms that filter for 50% plus weighting for each mapped point I am using. I created a math function for the histogram that returns the error percentage.
I found that making large changes to the tables created errors, I made smaller changes based on the values and would walk the values into where I wanted it to be. The calculator does some smoothing on its own, but it hates trash data, so at times I did some smoothing myself before I calced it.
If my logs are plus or minus a couple percent, and the values from cell to cell are + - I quit changing the table, if an entire area however needs a couple percentage points the same direction i will change it and relog.
Once this was done, it was a new car. before I did this I chased my tail, sometimes the car would drive ok, but deep down I knew it was just a ton of bandaids.
You need to check all compensation, multiplier, and other tables also if you are starting from a "OEM" SC companies cal. Honestly you never know what is in some of them.