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Our Awesome Dyno. I recieved an email the other day from a customer with a question about his Civic: "I heard you has dyno. You can tell me how much horsepowerz I has?" While we could easily dyno this kid's car to give him an idea of how much "horsepowerz he has", it dawned on me at that moment that there's a common misconception about dynos, a lot of people think that the sole purpose of a dyno is merely to measure horsepower. Pay attention people, the purpose of a dyno is TO TUNE CARS. For this reason, we went with the Dynapack to tune cars - And I will explain why by comparing it to the "other" dyno - The old roller type. Why roller dynos suck. A roller dyno has a set of large steel barrels that are driven by the wheels of the vehicle. Your car gets strapped down, the tech mashes on the pedal, and presto! - HP and TQ numbers appear. Simple. But one can see a substantial variable that has just been introduced into the picture: The traction of the tire on the roller. Tire pressure, temperature, compound, and position on the roller all add variables to the equation. Infact, the tension of the straps holding the vehicle down also add another variable. Basic math tells us that all these variables increase the margin of error exponentially. Changing something as simple as the camber of the tires will affect the HP output, in some cases even simply loosing the straps on these dynos has shown the measured power increase by ten horsepower! Not too accurate, huh? Why not design a dyno without these issues? Tires?!? What tires? The Dynapack bolts directly to the hub. All the above problems do not exists in the world of Dynapack. |