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try testing it on a non inertia based dyno such as a mustang like myself or a dynapack like perrin youll see much wider variances in the lower rpms. dynojet load varies so much that i see almost a half point in afr from plots on my loaded dyno the same is seen if you log on the dynojet and log on the street with similar load applications. im sure that you arent wot shifting at 5k rpm all day either and you cant do testing like that on a dynojet that has not steady state testing ability. its easier to look at a chart from stock to tuned on the same car over a extended period of time cause we have all learned that back to back dyno testing no matter what with this ecu takes multiple runs to each tune to adjust and running on a inertia roller will take longer to get repeatable results. and i saw this to everyone of my customers. you can take a dyno chart as a reference not biblical until you drive your own car before and after a tune.
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