Just thought I'd jump into the thread here and give a few insights I've found in my own efforts with the 1199. First a few qualifications for myself. 10 years in the Marines doing Avionics and all sorts of other neat and deadly things, AS in electronics Engineering witha heavy Mechanical Engineering background, 25 years Auto/Light truck Master Technician, done a bit of racing engine building and dev, lots of tech work and brain teasing with designs and dev work for exhausts/intakes and turbos on the Automotive side of things, and my Ducati 1199 is my first REAL motorcycle...and I'm 64.
So, all BS aside, I run the Tuneboy system, Complete Cruise and Tune, not the Woolich. I didn't like the lack of being able to really get in and play with things with the Woolich setup, and the Tuneboy 'extras' of additional fuel maps ready at hand, plus Cruise and a blipper sold me on the system. I've been playing with it for about 18 months now, and it works great, smooth, lots of power, totally dependable.. In fact I haven't messed with the fuel maps in about a year I'm so satisfied with them. BUT... here is where my OCD kicks in.. that nasty power slump from 3200-6500 rpm just drives me bonkers. I've seen the Termi dyno curves compared to the stock ones, and even the Termi's have the slump, and that bothered me... a lot.
So... I sat and thought about it for about 3 days, ran some numbers did some research, and did some theoretical exhaust flow/resonance analysis since it seemed to me that the slump was being caused by a resonance mismatch and resultant turbulence due to the long overlap on the cam and the resonance peak hitting an exhaust flow snag and screwing with the feeback pulse on the exhaust side. The key to the difference is in the side by side comparisons of a Termi vs stock exhaust system. The slump is still there, but it's basically flat lined. The Termi exhaust is larger in diameter and has a different flow pattern through the "Y" joint, plus the silencers have more flow in them. This all helps crutch the powerband at the slump area, but does not cure the problem. A resonance point analysis shows that the slump low rpm point is PAST the catalytic convertors in the stock exhaust, and the upward trend starts at about the point where the resonance coincides with just entering the mufflers, directly after the " Y" connection. The Termi has a differently shaped Y, so the resonance pulse is stronger at this point, leading to a better exhaust event and causing an uptick in power from 3500-7500 compared to stock. After that the larger diameter tubing carries the top end power better because the resonance point is steadily working it's way toward the exhaust port of the engine due to the higher rpm's and shorter resonance event timing.
Another thing holding back the engines power curve at this point is that the throttle blades from 50-100% range move the same in the 2500-7000 rpm range, instead of opening further in this range at higher throttle hand movement. So, at 50% hand movement, you get the same amount of throttle blade opening as you do at 100% hand movement, until the percentage of throttle blade movement diverges above about 6500 rpm. Due to the differences in the throttle opening curves versus what the input at the throttle handle actually is, 50-80% power doesn't have as gross a difference between the 3000 rpm point and 50-80% maximum opening point of 8500 rpm, so the difference in acceleartion "feel' is not as different as if a person was at 100% throttle and had only 35% opening at 3500 rpm, was held back to less than 50% throttle opening until over 6500 rpm and then suddenly got a rush of more power due to the throttle blades slamming open above 7000 rpm. To test this theory I increased the throttle opening at 100% throttle twist, for the area between 3500-7000 rpm, by 8-12% over what the normal curve is, and noticed a substantially stronger mid range. I haven't had the bike on a dyno to verify this yet, as I'm getting a slip-on and making mods to the bike at the moment, including adding bungs for AF ratio sensors so I can make sure I have the fuel curve properly dialed in. But, dialing in more percentage of throttle opening at the mid range RPM's did help, which shows several things.
First, the exhaust resonance is probalby still not alleviated due to the stock exhaust design. I have a Dominator exhaust on the way, and the first thing I'll do is remove the Cat and replace it with a straight pipe to ensure that the Cat doesn't cause any resonance issues. It's going to be loud, but all in the name of solving this problem. Secondly, the increased throttle blade opening in the mid range DOES do something to alleviate the slump, which shows the engine wants more flow, both from the Intake, as well as the Exhaust. I'm hoping the new exhaust gives what is needed. And lastly. a lot of the fuel Maps we get need to befiddled with. Mine is pretty dead on as far as I am concerned, even without an AF ratio sensor to dial things in perfectly. If anything it's probably a tad rich, and a plug read I did last week agreed with this assessment. But until i can dial in the AF ratio using Sensors, and then get a good dyno pull with AF ratio alongside the power curves, I won't be able to verify exactly where I am.
One last note.. I like to keep the front tire on the ground. Those pesky 1st and 2nd gear wheelies were dialed out by decreasing the throttle percentages between 50-100% in 1st gear, to a maximum of about 80%, and 65-100% in 2nd to only 90% at max input. 3rd, 4th, 5th and 6th all have the same throttle curves for consistency. No more unwanted wheelies. I'll keep people apprised of my progress with this, but until I can get a dyno curve to verify what I am doing it's all theoretical and 'seat of the pants' feel.
The first Map is the stock throttle blade openings versus hand movment. the 2nd is 6th gear of the modified curves high up and the last is my adjusted anti-wheely 1st gear map.
Have a good one.