Dyno Results on a 2006 K9

[K9husker]

Folks:
I finally pulled my 117 K9 yesterday and was happy with the results.
105 hp and 115 torque.
With a S&S .600 cam, XXX Carb, Powerpacc Backing Plate, V&H 2 into 1, stock timing/ignition. Jetting at .0295/.078
Torque comes on great 100 foot. pounds at 2,200 RPM and Grows to 115 at 5,500 RPM. HP peaks at 5500 RPM

Seems to be a good combination and is a very reliable bike.
Randy

 

[P8RIOT]

Hey Husker, can you scan the chart and post it?

Several of us would sure like to see the curves. :up:

 

[K9husker]

yup

 

[Raywood]

Did the dyno use the gas analyser to see where your air/fuel mixture was???

 

[barhopper]

I am dropping mine off to get dyno'd tomorrow. I will post results when I get them.

 

[omahabiker]

Randy,

Where did you have it dynoed?

Chip

 

[K9husker]

Dyno Results for 2006 K9

Here is the sheet

 

[lee]

is it my ignorance or do those numbers seem a bit on the low side?

 

[Doug G]

I agree, seems a little low, I will have the same set up shortly and looking to get my bike dynoed. I thought it would be at least 110. My old stock 107 dynoed at 102 hp, if I get numbers like that I may dig a little deeper into the engine. I'm not an expert but guessing a different ignition other than the Thunderheart would help. Can't rewrite the thunderhead, so the story goes!

 

[Coolbreeze]

Yea, 029.5 intermediat sound abit lean for the low end.

 

[Black Dawg]

Yea, 029.5 intermediat sound abit lean for the low end.

My bike would barely run at part throttle with a .031, much less a stock .0295.

 

[05chop]

You say peak hp at 5500 rpm correct? What gear is your trany in when running at rated h/p?

 

[Vegas]

These bikes are less than impressive hp per cube. His numbers seem around where they should be. I agree that the 0295 is way to small. The 78 is probably right on the money though. That is your power jet. I am running a .033 and my plugs are a hair lean if anything. Better check your cruising jetting. Dyno's are not the best indicator of drivability.

 

[lee]

If you're aiming for good performance, as some of us are, I think 1 HP per cu inch is a good mark for a S&S engine - if you get that you got a decently tuned bike

 

[Gas Man]

If you're aiming for good performance, as some of us are, I think 1 HP per cu inch is a good mark for a S&S engine - if you get that you got a decently tuned bike

Thats the way I think too!

And you have to be carefull gettting too much seperation between the int and main jets... it will create a gap in fuel flow and cause carb sneezing...

 

[K9husker]

It was a freebie dyno pull, so no tuning was done. I wonder what the numbers would be corrected at sea level. We are at 2,800 ft. The dealer says that ignition would give me another 5-10 hp, then do major mods like heads etc. He also overlayed my chart against a screaming eagle 113 that had been remapped and the numbers look real close to mine. As far as the actual pull, they did it in 5th. gear

 

[Black Dawg]

The chart shows they are corrected to SAE numbers. However it doesn't show what the correction factor was.

 

[Vegas]

If you're aiming for good performance, as some of us are, I think 1 HP per cu inch is a good mark for a S&S engine - if you get that you got a decently tuned bike

You can't forget drivetrain loss. Not a huge factor on on motorcycle but needs to be considered. He is probably over 1 hp per cube.

 

[slowrower]

Thats the way I think too!

And you have to be carefull gettting too much seperation between the int and main jets... it will create a gap in fuel flow and cause carb sneezing...

Gas, your right on with this -- I started with .031/76 went to .031/78 and all worked well - went back to .031/76 and it sneezes occasionally so .031/78 seems to be the right combo. :2thumbs: if I get any here I will goto a .03X next.

 

[lee]

You can't forget drivetrain loss. Not a huge factor on on motorcycle but needs to be considered. He is probably over 1 hp per cube.

a loss of 12 HP through the drive train sounds a lot though - doesn't it? thats more than 10%