I had never seen a dyno tune done in person before - it was pretty cool!
I didn't go there looking for big numbers (otherwise I'd trade the 919 in on a sport bike!)
I wanted smoother, more consistent fueling.
Getting the bike ready
I told him there was a spot starting around 4,500rpm where the power felt 'raw' instead of smooth, and asked if he could check the air/fuel ratio through the entire power range because I had a feeling it had some lean spots. Sure enough, the first run showed that it was rich down low and lean on top.
You can see where the blue line starts getting all wiggly just past 8,000 rpm, and the blue line across the bottom is weaving above and below the red dotted line, instead of staying parallel with it.
I only got a photo of the first pull. He did 6 pulls and made adjustments between each one. It's now a little smoother down low, and quite a bit smoother from 5,000-10,000rpm (the rev limiter kicked in at 10,200rpm).
I was happy, not only is the fueling adjusted properly and the power smoother, but as a bonus it picked up 3 hp in the middle and 1.5 on top, and gained 5 lb/ft of torque in the middle and 3 lb/ft on top.
Peak numbers are 105.16 hp and 66.17lb/ft of torque. Not too impressive compared to modern sport bikes but I'm happy with it!!
When I got there the guy was tuning a BMW S1000RR track bike. Performance-wise it was stock except for an Akropovic exhaust.
Here's his first run
Over 5 pulls and some fiddling on the laptop, he picked up 12hp in the middle and 10 on top, and he gained 8 ft/lbs of torque in the middle and 5 on top.
His peak numbers were 189.9hp and 81.5lb/ft of torque - pretty impressive for a bike that's almost completely stock!!
damn thats a beautiful lookin 919! Those forks and front fender really make it look mean! and those numbers are nothing to denouce! those are some pretty damn good numbers if you ask me!
Those are very good numbers, I don't care what anybody says. 66lbft of torque is kickass, and it's doing it at less than 10K.
If you don't mind sharing, how much did they charge for it? I have often thought of getting it done, but can't seem to find a reputable place around these parts and don't know what a reasonable rate is.
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My '99 Superhawk put down 104.2 and 67.8 with Jardine slip ons and a ignition advancer. Two different kinds of power delivery, two different motors but almost identical peak numbers. Very interesting if not germane.
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That blows my mind. I can't even begin to imagine twice the power as the 919, with even less weight.
seriously ... my stock 919 has enough power to get me in trouble... one thats tuned like the op's with a decent ammount more in the mid to top would get me in even more trouble..... but i cant imagine near 200 hp!
Say, which shop did you take her to get tuned? Also, what'd that set you back? I'm thinking of doing the same, but have heard of dyno tuners manipulating the machines to show incredible gains... these guys look pretty legit.
Say, which shop did you take her to get tuned? Also, what'd that set you back? I'm thinking of doing the same, but have heard of dyno tuners manipulating the machines to show incredible gains... these guys look pretty legit.
If you want some insights into Dynoing plus what to watch out for, check out the links in LordDuckHunters above post. There's a good paper that can easily be found, Dan Kyle wrote some of it, and LDH collaborated on it. It's a 2 Part paper. Dan did Part 1 - Dyno Chart Basics, while LDH did Part 2 - Dyno Tuning Basics. RC51.org Dyno Chart & Tuning Basics page. When I got my copy of it it came as being from RC51.org Dyno Chart & Tuning Basics page I just checked the www etc just preceding, click on it and it goes straight to the page.
seriously ... my stock 919 has enough power to get me in trouble... one thats tuned like the op's with a decent ammount more in the mid to top would get me in even more trouble..... but i cant imagine near 200 hp!
+1, but I'd sure like to ride one, maybe someday...
I've only ridden it to work so far, so not many chances to get too much above 5000rpm, but it feels just a touch smoother up to that point. I'm just happy knowing that the A/F is now dialed in correctly.
I'm heading to the track next week and am interested to see how the smoother top end and extra mid feels on the track.
I paid $150 for the dyno tune, which is a lifetime fee. I can bring it back any time and he'll try to tune out any issues I may have.
I've only ridden it to work so far, so not many chances to get too much above 5000rpm, but it feels just a touch smoother up to that point. I'm just happy knowing that the A/F is now dialed in correctly.
I'm heading to the track next week and am interested to see how the smoother top end and extra mid feels on the track.
I paid $150 for the dyno tune, which is a lifetime fee. I can bring it back any time and he'll try to tune out any issues I may have.
I've only ridden it to work so far, so not many chances to get too much above 5000rpm, but it feels just a touch smoother up to that point. I'm just happy knowing that the A/F is now dialed in correctly.
I'm heading to the track next week and am interested to see how the smoother top end and extra mid feels on the track.
I paid $150 for the dyno tune, which is a lifetime fee. I can bring it back any time and he'll try to tune out any issues I may have.
$150 lifetime? i believe at some point in your life, he's going to say you're living too long. (i think there will be more money spent with him...just a hunch.)
dude sounds awesome! i just might have to give him a ring and head up there from portland for a day on the dynotune lol.
He brings the dyno to various track days and bike events, so he may be in your area sometime soon. He just had the dyno at Oregon Raceway Park all Labor day weekend. Call or e-mail him and see if he'll be at PIR or ORP again any time soon.
i wish i had connected the dots when i had my bike tuned several times by nels. stand up guy, just super busy and hard to get ahold of at times lol.
mdtoney i dont think your bike ##'s are too high. i had my bike on that exact same dyno and got around 100 hp and 64 ft lbs of torque. so your power output is pretty damn nice!
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