DYNO Run

[csguru]

Well I broke down and put my bike on a dyno they have at the local Friday Night bike night, here's what she wrote:

2006 Stock 1600 with no mods..... YET. I wanted to get a baseline so when i'm all done with bafflectomy, computer, Caddman Air mod, etc I'll know power wise if it's better or worse.


Run 1
RPM HP TQft*lb Rlr RPM
2250 31.5 73.53 1011
2500 36.1 76.16 1118
2750 40.1 76.75 1231
2820 41.0 76.75 1259
3000 43.2 75.75 1345
3250 45.8 74.09 1453
3500 48.2 72.25 1569
3750 50.5 70.65 1680
4000 52.1 68.42 1787
4250 53.3 65.64 1903
4329 53.5 64.90 1933
4500 53.2 61.96 2013
4750 53.1 58.63 2121
5000 53.1 55.55 2235
5250 52.0 51.87 2346
5500 50.3 47.83 2458
5750 46.9 42.71 2568


Run 2
RPM HP TQft*lb Rlr RPM
2000 26.5 69.81 900
2250 31.3 73.26 1009
2500 36.0 75.75 1121
2750 39.9 76.13 1234
2778 40.1 76.17 1240
3000 43.2 75.52 1346
3250 46.1 74.43 1455
3500 48.5 72.89 1564
3750 50.8 71.18 1675
4000 52.6 68.92 1791
4250 53.9 66.43 1902
4500 54.3 63.19 2014
4587 54.4 62.19 5048
4750 54.3 59.84 2125
5000 54.2 56.71 2236
5250 53.3 53.17 2345
5500 51.7 49.24 2456
5750 48.3 43.99 2568


MAX Power MAX Torque


Temp was 83.0 Humidity 48% Pressure 29.0inHg


Losses: -12.5 HP -11.2 ft*lb Losses: -10.5 HP -10.0 ft*lb
Total Engine: 66.1 HP 87.93 ft-lb Total Engine: 64.9 HP 86.17 ft-lb

Not sure what the Losses mean, will have to go talk to the shop tomorrow.

Anyone else ever do it?

They're mathematically correcting the readings they took at the rear wheel to reflect approximately what's coming from the engine itself. They figure you're losing about 10~12 HP to run the transmission, bevel gears, and drive shaft.

One thing you'll need to know to make a really good comparison is what the air temperature, barometric pressure, and humidity was in the dyno room when they did the test.

Those are things you can correct for mathematically, if you know what they are both before and after the mods.