01-11-2018, 02:29 AM
Hoping this will work. Haven't tried attaching pics to this forum, and my preview window here isn't displaying the pic. It's only showing me "[attachment=7446]"
Anyway, here goes...
mickey, that's my bike's Dynojet dyno run after I added the full Akrapovic system paired to the ECU reflash. The red lines are with the decibel baffle in, blue is with it out. Oddly, the bike makes more power with the baffle in, and the fueling is better too.
Check out the torque curve. It's just about as flat as the CB's. The hp curve isn't as flat as the torque curve, but it's almost dead linear. No valleys, no spikes, no sudden hits anywhere. Just a smooth, steady climb.
I'm showing you this because I'm confused by what you're saying about the CB's lack of acceleration from cruising speeds. When I'm in sixth gear, doing 60 or 70 mph, it's turning 4,200 and 4,800 rpm. As soon as I twist the throttle (no downshifting), it zings up to 10K RIGHT NOW, and the bike rockets up to 100 mph like a slingshot. No waiting. It jumps from low rpm and a relaxed cruising speed to high rpm and crazy speed in the time it takes to twist the throttle. We're talking literally only a second or two and it's already blowing right past 90 mph. Stay on it for five seconds, and 100 mph is long gone.
This, despite no sudden hit anywhere in the rpm range. In top gear. Starting from a mellow cruising speed.
This bike doesn't have a particularly light flywheel effect, either. It doesn't respond like a peaky 600 Supersport. It has a big, meaty low end and midrange, and no sudden hit on top. In that respect, it's quite similar to your bike.
Your CB1100 at 60 or 70 mph in top gear is riding just below its torque peak, which, on the CB, is pretty much the entire graph. If the bike is running, it's near its torque peak. Any committed twist of the throttle ought to send it directly into the meat of its power, and the bike should accelerate hard, or at least as hard as it's capable of accelerating, which, with 66 ft-lbs of torque and 85 rwhp, ought to equate to reasonably rapid acceleration.
Anyway, here goes...
mickey, that's my bike's Dynojet dyno run after I added the full Akrapovic system paired to the ECU reflash. The red lines are with the decibel baffle in, blue is with it out. Oddly, the bike makes more power with the baffle in, and the fueling is better too.
Check out the torque curve. It's just about as flat as the CB's. The hp curve isn't as flat as the torque curve, but it's almost dead linear. No valleys, no spikes, no sudden hits anywhere. Just a smooth, steady climb.
I'm showing you this because I'm confused by what you're saying about the CB's lack of acceleration from cruising speeds. When I'm in sixth gear, doing 60 or 70 mph, it's turning 4,200 and 4,800 rpm. As soon as I twist the throttle (no downshifting), it zings up to 10K RIGHT NOW, and the bike rockets up to 100 mph like a slingshot. No waiting. It jumps from low rpm and a relaxed cruising speed to high rpm and crazy speed in the time it takes to twist the throttle. We're talking literally only a second or two and it's already blowing right past 90 mph. Stay on it for five seconds, and 100 mph is long gone.
This, despite no sudden hit anywhere in the rpm range. In top gear. Starting from a mellow cruising speed.
This bike doesn't have a particularly light flywheel effect, either. It doesn't respond like a peaky 600 Supersport. It has a big, meaty low end and midrange, and no sudden hit on top. In that respect, it's quite similar to your bike.
Your CB1100 at 60 or 70 mph in top gear is riding just below its torque peak, which, on the CB, is pretty much the entire graph. If the bike is running, it's near its torque peak. Any committed twist of the throttle ought to send it directly into the meat of its power, and the bike should accelerate hard, or at least as hard as it's capable of accelerating, which, with 66 ft-lbs of torque and 85 rwhp, ought to equate to reasonably rapid acceleration.