Dyno results

[Fudd]

I'm disappointed with the results.  88.6 hp.  I guess I'll now get that carb sync job done that I didn't think I needed.

[The Anvil]

Is that an average?

[Fudd]

Three runs.  All three within a tenth of a horse.  The graph does not depict RPM, but max power achived at 95 mph.  I'd have to make a pass down the road to see what RPM that is.

[Stanley Steamer]

I had 94.7HP to the rear wheel on a dyno run a couple of years ago.....

[Fudd]

I had 94.7HP to the rear wheel on a dyno run a couple of years ago.....

Thanks for rubbing it in.

[The Anvil]

You can get a second opinion. Not all dynos measure the same way and even two of the same model can read differently. But a few years back I took my my 954RR to Seacoast Sport Cycles for some dyno runs and some Power Commander tweaks. Well they had recently went with some new design dyno that worked on a different principal and was supposed to be more accurate than the Dynojet dynos. My bike was one of the first to get run on it after it was installed. It only made 123hp (should have been in the mid 130's) and I was a little worried that I had gotten a bad one. Of course the bike would wheelie in three gears but dynos don't lie, right? Well they were having odd results with their own racebikes as well so they had the factory rep come in and change some stuff, adjust some software and recalibrate some scales etc. It got better, but readings were still consistently below where they should have been. Eventually they sent it back to Tucker-Rocky and got a Dynojet dyno. Problem solved.

Of course if your carbs are in need of a synchronization then that can certainly have an effect. But the point is that it COULD be the dyno. Since you had three consistent runs the operator would seem to know what he's doing.

[BigAl]

Dyno Runs ain't worth spit without the right operator.

Does it have rideability issues.

Spit cough or sputter.

Use way too much gas during normal riding .

Hitting on all cylinders.

How about a good run of Lucas or that stuff I do not use Seafoam on  low gas tank level and a long run will do wonders.

ALso what altitude were you at.

Higher the altitude with no jetting changes, well it will vary.

Stock Pipes , or AIr box mods.

All kinds of things can affect performance.

Tire pressure, outside temps, humidity, like the guy said above, the darn Dynomometer may be in need of some work.

I had a Vulcan Dynoed once, he said it was low for that bike and said he would give me the Dynojet Numbers on the chart to show it higher.

WTH>

[Fudd]

Dynojet dyno, sea level, 91 degrees F

Bike runs smooth, pulls best between 4000 and 6200 revs.

32 mpg average, drinks gas above 80 mph.

Running on 100% (non-ethenol) regular gas.

Stock everything except K & N air filter.

I can't stand to think I'm giving up a horse per cylinder to most Valks.

[Dag]

Viking Exhaust
Viking Jet-Kit
Interstate Carb Springs
Dyna 3000 Ignition Module
Dial A Jet (Secundary Fuel System)
#95 Main Jets

[Fudd]

Sounds like I need to hop a boat to Norway.

[The Anvil]

Dynojet dyno, sea level, 91 degrees F

Bike runs smooth, pulls best between 4000 and 6200 revs.

32 mpg average, drinks gas above 80 mph.

Running on 100% (non-ethenol) regular gas.

Stock everything except K & N air filter.

I can't stand to think I'm giving up a horse per cylinder to most Valks.

91 degrees in Louisiana? There's your answer right there. One thing I've noticed about my Valk is that she's very sensitive to heat and humidity. On a hot, humid day I feel a marked decrease in power.

[sandy]

Fudd: Do you have a California bike. They have different emmission systems, including milder cams. My CA model has 88HP and the same torque numbers. I get 35-38 MPG with Dyna Jet needles set on the 2nd notch down. It pulls a bit better on the 3rd notch but MPG's drop down.

[Hoser]

I've run from 92 too 99 hp on the same dyno and same operator, I check every year just to know.  This is my best one.  Bike is stock.  I would say any where in the ninetys is normal.  Hoser

[Momz]

Three weeks ago my wife and I took my Valks to Washtenaw Community College for a Dyno Shootout.
They checked just about everthing, including tire air pressure during a pre-run Tech Inspection.
The ambient temp was 73 degrees with 63 percent humidity.
The Dyno runs only gave HP (calculated) and not measured Torque. Also no air-fuel ratios.

My 98 Rat Rod has both I/S carb springs and ICM, ECT Mod, polished intakes, and Cobra 6x6s. [91.0 HP]
My 2K I/S has a 4 degree TW, a K&N filter ans a DragonPacks exhaust. [92.0 HP]

My 98 makes 4-5 HP more from 2.5K RPM to it's 91 HP peak and the peak goes on much further until 7100 RPM.
The 2K does have a smoother HP drop off after reaching it's peak of 92 HP at 6300 RPM.

Not all Dynos read the same,...it's all realative. 

[sugerbear]

Fudd: Do you have a California bike. They have different emmission systems, including milder cams. My CA model has 88HP and the same torque numbers. I get 35-38 MPG with Dyna Jet needles set on the 2nd notch down. It pulls a bit better on the 3rd notch but MPG's drop down.

i knew the california model had different carbs, but cams too?

[CajunRider]

91 degrees in Louisiana? There's your answer right there. One thing I've noticed about my Valk is that she's very sensitive to heat and humidity. On a hot, humid day I feel a marked decrease in power.

I'd have to agree here.  I'm always amazed how much better my bike runs above LA (BMW in Missouri, Valk in Tenn.). 

Wait till the end of November and try it again.  Also, try it with the pre-filter on the K&N... from what I hear, it actually makes a difference on the Valk. 

[Fudd]

Cajun Rider, did you mean "without" the prefilter.  I currently have mine installed.

A local Honda shop was doing free dyno testing today, that's why I did it.

I doubt I do it again anytime soon unless I make significant change in something.

[CajunRider]

Cajun Rider, did you mean "without" the prefilter. 

I've always heard WITH if using stock pipes. 

Maybe it's for cleaner air???  But I seem to remember someone saying the pre-filter actually helps if running normal pipes. 

 I may have been imagining thongs though...   

[Russell Rice]

This is mine with just a little bit of head work

[Willow]

I've always heard WITH if using stock pipes. 

Maybe it's for cleaner air???  But I seem to remember someone saying the pre-filter actually helps if running normal pipes. 

 I may have been imagining thongs though...   

You were probably imagining thongs, but there is a goodly amount of disagreement on the subject.

I run mine without, but I do have other than OEM pipes and an aftermarket ICM.

[Fudd]

Fudd: Do you have a California bike. They have different emmission systems, including milder cams. My CA model has 88HP and the same torque numbers. I get 35-38 MPG with Dyna Jet needles set on the 2nd notch down. It pulls a bit better on the 3rd notch but MPG's drop down.

Nope, this one is a non-California edition.

I have a set of Dynajet needles, still in the box.  I'm planning on installing them this winter.  Maybe that'll help.

[Ricky-D]

I don't think a synchronization will affect any changes on a dyno run or for that matter HP.

These are always WOT measurements while a synchronization deals with the idle mainly.

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