Dyno Run/Tune today - Wrist Twisters
 
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post #1 of 15 Old 08-26-2011, 10:26 PM Thread Starter
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Dyno Run/Tune today

So I took the bike in for a Dyno tune today.

Stock air filter, PCIII, Two Bros slip ons, 344 m (1,129 ft)

First run she did 106HP and he couldn't squeeze any more juice out of it. He said he smoothed out the power curve and now I'm getting better power through the gears. Hopefully I'll also see an improvement in gas mileage too.

One thing though... holy shit does it ever burn a lot of oil! That's where the smell is coming from. Anyone else know if their bike is burning oil? Some of the clouds coming out of mine were ridiculous!

I'll post the vid etc in a minute

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post #2 of 15 Old 08-26-2011, 10:42 PM
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... u have issues if ur 919 is burning oil like that.

ill go 3500 mi and go from the top of the sight glass... to 1/4in less of oil in that time... all probably due to the negative pressure in the crank case... but not much in the way of burning oil.

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post #3 of 15 Old 08-26-2011, 11:10 PM Thread Starter
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Quote:
Originally Posted by nd4spdbh View Post
... u have issues if ur 919 is burning oil like that.

ill go 3500 mi and go from the top of the sight glass... to 1/4in less of oil in that time... all probably due to the negative pressure in the crank case... but not much in the way of burning oil.
I wonder if it has anything to do with the PAIR blockoff plates?? The mechanic said that Honda has a high oil consumption tolerance... like 1L per 1000km. I add about 400ml every 1000km or something like that. I need to keep a close eye on it and figure out exactly what it's burning.

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post #4 of 15 Old 08-26-2011, 11:30 PM
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No oil consumption on mine. I have never needed to top it up between annual oil changes (5-6,000kms per year).

That 1l per 1000km acceptable industry burn is something engine makers drag out when they have issues with bikes - I remember Suzuki stating it with their oil burning US Bandits in 01, Honda with the oil burning 08 blades, I've seen it stated by Triumph too. It is usually followed months later by a warranty repair!

It is a load of crap - it was applicable in the friggen 50's as a oil consumption rate NOT on today's engines.

Just make sure you are not actually overfilling your engine - it should never be above the top line and I'm sure I've read a thread here stating that lots of 919's have their oil level sit just a bit lower than that line. If you bike's oil level drops below half way between the lines you should top it up but you may find you are overfilling and it is just burning off to find it's own acceptable running level.

Also be careful measuring it - on a race stand can give false readings - I kneel down on one knee and carefully pull the bike upright (warm engine) - you can easily find the perfect upright point as it will stop tilting left or right. Then sight the oil level. If this sounds risky buy a cheap mirror and set it up in your shed so you can see the oil sight glass when you are sitting on the bike and keeping it level.

A darn dipstick would be easier - it works well on my cars!

Hope this helps.

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post #5 of 15 Old 08-27-2011, 12:19 AM Thread Starter
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http://www.youtube.com/watch?v=tQcNeekRRbg

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post #6 of 15 Old 08-27-2011, 12:55 AM
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You shouldn't have 'clouds' but having dark stuff come out at WOT shouldn't be something to be concerned about. Seen 3 919s do that at WOT and so does mine. I don't know about a liter every 1000kms though; I don't fill more than a liter every 3200km (OCI), if that.

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post #7 of 15 Old 08-27-2011, 04:34 AM
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Are you sure that's oil, looks like it's fuel to me, more black/grey than blue. And I've never had to add oil between changes either. Some people will tell you it's OK to throw 4 full quarts in, that's just too much oil, use the proper amount. (3.8 qt. IIRC)

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post #8 of 15 Old 08-27-2011, 05:08 AM
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I've never had to add oil either.

What map did you go in with, the Two Brothers duel slip-on, stock filter map?

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post #9 of 15 Old 08-27-2011, 05:40 AM
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Man those Two Brother sound great! I don’t know the smoke on acceleration was Dark on deceleration it seemed White/Blue and that would say oil getting past the rings. If you have the pairs block off plates you would blow unspent fuel and get the dark smoke. Seeing how you were there in person what color was the smoke?

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post #10 of 15 Old 08-27-2011, 06:24 AM
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I use some oil but no where near a liter ever 1000kms. More like a half quart every 2500kms. Been that way since the day I got her. It is more than my buddies R1 uses but still acceptible.

Spoiler:

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post #11 of 15 Old 08-28-2011, 10:28 PM
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Don't worry, it's just rich exhaust. Mine did the EXACT same thing. I asked the guy about it and he said it happens all the time on the Dyno, due to the testing.

I also see it on fellow riders when they stomp on the gas. 919's burn rich .

It did get a little better after the third or fourth run, only because he leaned out my map a bit.

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post #12 of 15 Old 08-29-2011, 06:52 AM
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Mine did big puffs upon sharp throttle let off from full load on the dyno.
All it is is the rings unloading and losing oil control.
Nothing to worry about.
IF it was pumping out smoke under heavy load, then you have a problem, but I'll bet that was not the case.

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post #13 of 15 Old 08-30-2011, 02:44 PM
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Awesome. 100hp between the legs is a good thing.

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post #14 of 15 Old 08-30-2011, 03:44 PM
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Not much oil burn here either. Like nd4spd, I barely see any drop in the sightglass between oil changes.

I've got the PAIR plates, PCIII, K/N, Satos among other things.

Slow is smooth, smooth is fast.
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post #15 of 15 Old 08-30-2011, 05:13 PM
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My bike pulled 107/68 (hp/torque) on the last dyno run. It was quite an improvement.

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