Dyno Day for the Superduke! - Wrist Twisters
 
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post #1 of 15 Old 05-12-2012, 11:01 PM Thread Starter
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Dyno Day for the Superduke!

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.

Superduke
R1200GS
XR650L
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post #2 of 15 Old 05-12-2012, 11:06 PM
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Excellent. Very productive day!

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post #3 of 15 Old 05-12-2012, 11:13 PM
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very nice write-up, sounds like you got a great tuner! dude was even willing to ride YOUR bike to try and identify the trouble spots, that's awesome!

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post #4 of 15 Old 05-12-2012, 11:26 PM
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Fantastic experience! Mark sounds like a good guy.

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post #5 of 15 Old 05-13-2012, 06:34 AM
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Nice! That bike is bad ass.

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post #6 of 15 Old 05-13-2012, 06:40 AM
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Very nice Scott. $20 is a great deal and it's good to see the mods are paying off!

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post #7 of 15 Old 05-13-2012, 08:48 AM Thread Starter
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Quote:
Originally Posted by marylandmike View Post
Very nice Scott. $20 is a great deal and it's good to see the mods are paying off!
My map tuning was $200 with several runs, but still a great deal, the guys that just wanted to get a horsepower # were charged $20.

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post #8 of 15 Old 05-13-2012, 09:11 AM
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Very Cool!

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post #9 of 15 Old 05-13-2012, 01:36 PM
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I wish I would have known about this. My sister is in Lafayette and I'm in Huntington. It would have been a good excuse to visit "her", lol!

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post #10 of 15 Old 05-14-2012, 08:49 AM Thread Starter
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Here's the dyno graph...


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post #11 of 15 Old 05-14-2012, 09:14 AM
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Nice work and great write up/pics. Sounds like a day well spent.

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post #12 of 15 Old 05-14-2012, 09:32 AM
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Looks like a bucking bronco below 5K RPM. Is that before he smoothed it out?

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post #13 of 15 Old 05-14-2012, 11:40 AM Thread Starter
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Quote:
Originally Posted by marylandmike View Post
Looks like a bucking bronco below 5K RPM. Is that before he smoothed it out?
Those are gear changes as he upshifted from 1st to 6th.

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XR650L
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post #14 of 15 Old 05-14-2012, 12:23 PM
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Any reason he did a 6th gear pull?

I'd love to get my GSX-R1000 on a dyno.
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post #15 of 15 Old 05-14-2012, 06:09 PM Thread Starter
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Quote:
Originally Posted by jeffie7 View Post
Any reason he did a 6th gear pull?

I'd love to get my GSX-R1000 on a dyno.
He did mid range tuning in 3rd gear, but did the WOT run in 6th

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