Dyno Testing

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  • #41261
    Mitch Wright
    Participant

    Just spent a day on the dyno at Billet Performance Karting with Barry Lewis. All I can say is that I could not have found a cheaper 3 HP and improved performance below the curve, what we found is truly amazing. And Yes a stock ICC engine with some tuning time makes very good power.
    I figured to try all that we tried (which was a lot) at the track would have taken over 350 laps.
    I now have baselines and possible configuration changes that I know how they effect the performance, granted some my not work on the track but I have saved myself a ton of time and guess work.

    Thank you Barry I had a blast, learned a ton and can recommend spending the time and money to all.

    #52469
    Anonymous
    Inactive

    So how mutch to dyno at Barry’s????????

    #52470
    Mitch Wright
    Participant

    Rich,

    Barry charges by the hour for Dyno time which is the norm for dyno service. Give Barry a call for his rates. I was there all day because I was trying different port timing, ingnition, jetting,needles, atomizers, mufflers and so on. not being a expert but would think with a Rotax you could try a lot in a few hours. To save yourself time you need talk Barry to come up with a plan of attack before you set up to make runs.
    We made 3 or 4 baseline runs so we had a good baseline. Then would make atleast 3 runs for every change to make sure we would see good numbers and they repeted. In all we made 65 runs because I had a very long list of things I wanted to try. at the end we went back to the baseline to confrim were we started and what we learned.
    What is interesting is what I thought would make a big + or minus change in some case would make not much difference at all and what I thought a minor change would pick up a horsepower or more. To me what was more important than a big peak hp number was how much we improved the performance below the curve which improves drivablity and the way the engine pulls off the corner.
    For me what I learned was worth twice the price, plus I had a lot of fun.

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