Online: STEAMER

Dyno Results

  • fatboboz
    fatboboz
    16 years ago
    got my fb dyno'd by Russel at Dynotime.
    98 torque and 87 hp.
    kury twin velocity air, V&H double barrel pipes, SE211 cams, PCIII usb, and lots of other bits that look good but dont add power,,;-)
    Russel says his dyno is set to approx 9% under what most other dyno's around Perthg read at, so that would put mine at arpund 106 tq, and 94hp.
    Pretty good for what I have done so far.
    Will only get maybe some head work done ( CC and polish ) and thats it.
    MAYBE change cams as they work good up top but there is a tq hole around 2500rpm I dont dig that much.
    Got a chart but dont know how to post.
  • Uncle Ho
    Uncle Ho
    16 years ago

    Arlen Ness Stage 1; V&H Short Shots and PCIII and got  81hp down at Wayne Pattesons

  • fatboboz
    fatboboz
    16 years ago
    It comes down to the fact that dyno guys must set up the correction factor on the dyno to allow for humidity, ambient temp, etc.
    The setup, and subsequently the results can be skewed by such things as a overly hot dyno room, or a high humidity atmophere when the dyno pull is done, that might've started out a dry and low humidity day in the morning when the operator setup the dyno for the day.
    It also depends if the operatror is conservartive in his correction factor setup or agressive.
    Russel knows that when bikes he has dyno'd get run on other dyno's he gets reports back saying it reads around 9% higher.
  • fatboboz
    fatboboz
    16 years ago
    hi Alan,
    The torque hole I mention is probobly beter described as a lull, sort of.
    The chart shows tq at just over 81 ftlb at 2000rpm, and then it flattens until 3,000rpm, then rises to a peak of 86.2 ftlb at 4,100 rpm. Its just the way cams work. The dyno chart also shows the 211 cams making peak HP of 87hp at 4800-5500.
    A tc96 with SE255 cams is supposed to be a torque monster from 1500-3500 but dies at the top end. If you want really good stump pulling tq go for the SE255. Mind you they are recommended for baggers mostly.
    The SE211's are more mid range and will work thier best with high comp heads. The 211's seem to like higher compression than our stock bikes 9.2:1. Perhaps around 10.2:1 or even 10.5:1. They then make huge power and torque. They do not work well on 88ci motors without high comp, but seem ok with our larger cube tc96 motors.
  • Mainey88
    Mainey88
    16 years ago

    Correction for my last post I was referring to HP not TQ, the TQ comes on 2250 dips a bit at 3200 then up to 4500 before it drops off again

  • fatboboz
    fatboboz
    16 years ago

    it is what it is.
    heres the run sheet.



    Anyhow, the amount of HP and TQ it gets will be whatever it will be, given the mods I have made.
    86hp on Rusells dyno, or 68hp on joe-blows dyno, or 96hp on Frasers dyno, big deal. It wont change a thing on the street. It will still only go as fast as it will go.
    They are only numbers and like I said, they will change every time due to external infulences.
    I am more interested in ensuring the fuel/air was right as summer is almost here and these air-cooled units run hot as it is.
    Detonation and subsuquent melted pistons on the bike, and then melted crutch onions on me where the big concern.
    And honestly ifpower was what lit my fire I would've stayed on the M109R I was riding before I bought the FB.
    SE211's are bagged by some and priased by others. Andres make good cams too.
    Check out this link and read up yourself.

    http://www.nightrider.com/biketech/hd2007HD_performance_upgrades.htm

    Read some more forum posts, talk to some dyno operators, then make your own infromed decision and stick by it. You wont befar wrong no matter what you choose quite honestly.