I've been discussing performance mods to my Superduke on this thread: https://www.wristtwisters.com/forums/...nce-29993.html
Had it running pretty good but wanted to get a custom map to maximize performance and smooth out low rpm throttle jerkiness, a friend with a Brutale recommended a tuner he'd used and I was able to get an appointment with him while he was set up at an open house about 60 miles away today
I spent the day at Twin City Motorsports, a small independent sales and service bike shop in Lafayette, IN. Mark Harrell Mobile Dynamometer
had his dyno set up in the parking lot and was doing maps and horsepower runs all day. I had a late morning appointment and watched him set up a power commander tune on a metric cruiser, then he tackled mine. Here are some pics of the set up, sorry they're crappy cell phone pics, my camera is on vacation in Europe without me.
Mark's wife was his assistant and IT professional, his dog was helpful too
Here it is at speed with Mark tuning it with TuneECU
Here's a video of the readout as he's doing a WOT run, the middle number is MPH, note that it hits 135 sitting still!
And a video of the bike during WOT run
He got it dialed in pretty good the first run through, I took it out for a test ride while he started doing horsepower runs on all the other bikes lined up waiting. It had very good power, pulled strong to redline with no flat spots, but it was still a little jerky at low rpms. Came back and talked to Mark and he said if I could hang out he'd put it back on the dyno after he ran a few other bikes. I had nothing to do all day so happily hung out and watched a variety of machines run through the dyno, ate some free burgers and dogs at the open house, and chatted with the shop employees.
Check out this S1000RR, belonged to one of the technicians at Twin City Motorsports, just in case you can't read it, that's 188.5hp!
This clean 97 Suzuki TL1000S put out 120hp, surprised me!
Nice old 97 Yamaha FZR600 produced 81hp, also surprised me
B-King did 181hhp
The blue Busa had nitrous, hit 192HP. The yellow drag bike next to it is a turbo with supposedly 300+, but didn't run it.
Once he got done with the horsepower runs, which seemed like a deal at $20, he took my bike for a spin around the block so he could feel what I was talking about. He put it back on the dyno and started messing with the low rpm response, identified the jerkiness as being between 2000-3000 rpm and 1-3% throttle opening. He ran it a few more times and tweaked it each time, then I took it for another spin. It was much improved, low rpm throttle roll on was very smooth, and it accelerated well from idle without jerking. I'm very happy with the results, took the long way home and enjoyed every mile of it. Engine is very free revving, it feels extremely flexible and I can accelerate smoothly without having to keep the revs up high like before. A day well spent!
Oh yeah, it produced 120.7 rear wheel horsepower and 75.5 ft/lb torque, stock #'s are like 105-110 hp at the wheel (118 at the crank) and 70 ft/lb torque. Over a 10% power increase, I'll take it! Add to that the fact that the bike only weighs 375lbs now after all the mods.
I'll post up the dyno chart when I get to work Monday and scan the print out.