Quote:
Originally Posted by fenton
I didnt make 227.
I made 206 on the DynoDynamics(in fall) and 202 on a dynojet(in summer)?
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True but 206/185 on a Dyno Dynamics is ~227/204 when corrected to Dynojet equivalency. So either the 206 was in comparison mode (which you say it wasn't) or it is equivalent to ~227 on a Dynojet. Does it make any sense yet?
Not really a big deal but I was simply hoping to clarify why some of the Dyno Dynamics results in this thread match Dynojet numbers while others are ~10% lower. I honestly didn't mean this as an attack on the Phantom and don't even see how it could be viewed that way but...
Sadly I see that once again any attempt by myself to elucidate a factual error or discrepancy is immediately seen as an all out attack on the Phantom ESC. Not you, of course, but several others.
Anyway, maybe the below information will help explain my reasoning. Obviously we still can't expect 100% accuracy when comparing results from different dynos in different shops on different days but often with a little knowledge and the the right correction factor, it can be accurate enough to present a useful comparison.
From the NASA time trials rules:
"Dynamometer tests must be conducted on a Dynojet Model for front and rear wheel drive vehicles, and on a Dynojet, Mustang, Dyno Dynamics, or Dynapack for AWD cars, in a commercial facility that offers dynamometer testing as part of their business and is open to the public. All (AWD) Dyno test results using a Mustang or Dyno Dynamics dynamometer will have 10% added to the maximum horsepower reading to obtain the number that will be used to calculate the “Adjusted Weight/Power Ratio”