Yeah, I see what you're saying, and the dyno doesn't lie, it just feels like I don't accelerate as fast from 5500-8000 rpm as I do from say 2500-5000. I thought that's why people switched out the stock 865 cams with the 813's.I think this is a difference between perception and reality. TTP has this stock hp curve:
A stock Bonneville makes something like 45hp (according to this curve) at 5K rpm and over 60hp at 8K. The entire point of downshifting is because you make more power at higher revs. Maybe there's something seriously wrong with your bike, or is it a 270-deg crank bike (America/Speedmaster/Scrambler?), but a normal stock Bonneville/SE will be way quicker if kept above 5K rpm at all times. Even a 270-degree crank bike still makes more power after 5K up to 7K... but the 360-deg bikes increase pretty linearly right up to the rev limiter (and beyond if you bump the rev limit).
I bet if you put a stopwatch on it, you'd find that's objectively incorrect. Downshift to 3rd gear and it'll fly.
This is why I mentioned about the perception of turning the throttle and having a feeling of a surge of "power" without downshifting. That's what I think most people are looking for when asking for "more power". And BTW that's why there's bikes that make a totally unusable amount of top end power ... it's because what the buyer really wants is 50 hp at 3500 rpm, not 10K rpm. But 50hp moves the bike just as much no matter the rpms.
airbox baffle removal, bellmouth inlet, TEC 2-1 exhaust, TTP tune 2 2-1 (with my own ECU tweaks...). I did remove the SAI and evap stuff but that has no effect on performance. I doubt my mods have added more than 7 hp, but I have not had it on a dyno. But I have pinged it off of my 8500 rpm rev limiter in first gear several times. I assure you it doesn't stop pulling after 5K. It doesn't have that kind of peak-rpm drop off like my other bike does.
I have the 360-degree engine. Maybe what I'm noticing is the torque drop from 6000-8000 rpm?
Because of that feeling, I rarely ever went past 5000 rpm. I'll try winding her all the way out next time I ride. It probably is my perception.
Not doubting what you're saying, I'm just trying to understand how this all works. Maybe I need to try downshifting more and stay closer to redline when passing?