How much power? Bike dyno thread.

Well, this should be interesting. I just put my 10r on the dyno over the weekend, and and that let me know it still makes great power.....

Theres mine, what all does everyone else have?

Very nice. My k1300s did 146.2 bone stock with around 500 miles. I plan to go back after a pipe and tune. We may be the only ones on the board that dyno our bikes.

In reply to Cotton:

I could see why.....I did this at a local dyno shootout that welcomed everyone. There were 3 rides of 10+ harleys that came through and zero got on the dyno(they even had their own classes) 2 guys with goldwings did dyno their bikes though, 99 & 101hp. The day saw a gsxr750 belt out a cool 201whp(it was turbo'd) and defeat a 1481cc built busa(195hp), a 2 stroke 350cc quad spin on the dyno while still making 72hp, and the muzzys 10r making nearly 230hp on low boost. I won the 900-1100 class by 3hp over a '09 zx-10r with more done to it.

I didn't get to see it run, but there was an immaculate Yamaha RZ350 two stroker there that won the 0-500 class with 57hp. Fun day was had by all*

*Except the busa and '09 10r owners......they were a bit upset.

Ok newb questions. Is that at the wheels? And do bikes lose a % of power based on the transfer to the wheels?

O and either way 151 hp on something that weighs what 4-500 lbs. HOLY SHNIKEES!

In reply to octavious:

Yes, thats to the ground. Driveline loss still comes into play as well, and it depends upon the setup, belt, chain, or shaft drive, how much chain is being moved, and how much your rear tire weighs.

We figured mine is still making 170+ at the crank. Not bad for an '04 thats been beat the berkeley out of.

My bike is shaft drive and is rated at 175HP by BMW, so I'm looking at around 15% loss. My dyno shop only charges $39 for a baseline session which I think is a great deal, so will take my Speed Triple next.

We also did a top speed run and the K bike hit the limiter at 179MPH. Incidentally I didn't get a torque reading because the coils on my bike are buried and you need a signal from them. Before going back I hope to isolate the signal from the ecu and see if that will work.

I'm surprised to see it with mph instead of rpms.

I wonder if the MPH actually means anything without wind resistance, seems to be just a feel good number. That is a nice HP curve thought, 150hp isn't anything to bat an eye at.

In reply to Cotton:

Mercifully they only charged $15 for this, and I didn't get a torque reading for the same reason.

In reply to Bobzilla:

They did that because while their dyno is rated to handle 700ish hp, speeds over 200mph will cook the brake on it. The muzzys 10r nearly reached 200 on its 4th gear pull.

In reply to benzbaronDaryn:

Actually, I would gain another 5-10hp at those speeds thanks to the ram air inlet on the bike. I told them they needed a 180mph wind tunnel to put the dyno in.

151 at the wheels of a 04 Ten is pretty stout. Kawasaki builds some great motors.

I have never seen MPH either. It must be for the dyno runs rather than for tuning. The dyno ops probably didn't want the hassle of hooking up a spark plug lead on the bike. You also need to see the torque plot as well. That chart doesn’t tell you anything about how the motor feels or how it is tuned, except at full throttle in I assume top gear. 100 hp needed to go 100 mph. Could have all kinds a peaks and valleys on the way to 100 hp. Could also go from 100 hp to 151 hp in 1 second or 20 seconds.

MPH is pretty common on automotive dynos, especially overseas.

In some scenarios i like it since it can tell you how long your powerband really is in that gear, rather than doing some math based on RPM.

Also gives some ammo against the "not enough rpms of power!" nerds.

Didn't think about the brake on the dyno.... good call.

In reply to Rusnak_322:

4th gear pull......stock gearing on this could allow it to top 200mph if you flashed the ecu.

Either way, first gens are known for making this fat power curve, and hopefully I'll be able to tell you guys a torque once I get the pc3 installed and maybe ride up to Decatur to get the bike flashed by Schnitz.