Hellgate
New member
No need to apologize. Different results are being produced. It's possible your tuner's test equipment is not sensitive enough to detect a measurable difference.
This is how it was explained by the design engineer: "The AIS system will change the air rule readings at idle and on deceleration. A change is also seen at light throttle cruise under 5000 rpm once the vacuum drops below the AIS diaphragm spring tension, the system stops working". This test was performed on a brand new bike with a fully functional AIS system.
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The tuner I work with is Micah Shoemaker the co-owner of AF1 Racing in Austin and New Branaunfels, TX. He has been tuning for 20 years, and uses a Factory Pro EC997 dyno with a Factory Pro 4 Gas High Speed EGA. Not the cheap DynoJet stuff. In other words, he has the very best equipment and experience. He has also tuned for the best CMRA, and WSK racers.