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1. I have become aware of two primary ways to tune (E38 GM): a. MAF and VVE separately and b. Using dynamic air and doing them simultaneously. What is the thought on the Dynamic air method of tuning?
2. Filtering data seems to be a critical aspect in removing transient data before updating a tune file. What filter formulas is anyone using for CL and PE data? The ones I have collected seem to eliminate a lot of data, and it seems unlikely its all transient.
3. I have changed my cam from a stock GM cam to a Cam Motion stage 2. In the tune file there is a spark table GM (ECM 12660) that is the theoretical spark advance that delivers the max torque. How critical is it to update this table and how does one do it?
4. I use an AEM tail pipe WB sniffer with an extension that goes up the tailpipe as far as I can get it (~8inches). I recognize it may introduce some error, but how much and do I need to compensate for it?
Each of these questions may be a topic on their own, but I was hoping to keep them together so I can maintain the "bigger picture" as I get my rebuild into the car and started.
