![]() AC dynamometer interface includes integrated console, independent console, computer, etc. Typical features include encoders or other speed or position sensors, torque arms and various types of sensors. AC dynamometer (transient electric AC dyno) or high speed dynamometer typically has speed and power feedback for performance testing and monitoring. Dynojet offers this and another newer dyno line that I can't think of off the top of my head offers it also.AC dynamometer working principle, AC dynoĬommon applications for AC dynamometer (transient electric AC dyno) includes high speed and general purpose applications, automotive, aircraft or aerospace, chain or belt drives, gearboxes, fluid power systems, gas or diesel engines, industrial, marine, transmissions and turbines. Like I said above, numbers are great for bragging rights but some shops view it as "the more horsepower I can get out of a car the more people that flood in for the inflated numbers." The advantage the normal Mustang Dyno has is the Eddy current brake so it can apply a rolling load on the car so you can hit areas when tuning that you wouldn't maybe hit (legally) on the street. Always want to start with a base and build from that. It is a tool just like a wrench to give you an idea if things are going the right or wrong direction. You want a before/after comparison for mod and tuning reasons. The thing to remember is the number is half the battle. If I had dyno'd my car on the Mustang and felt good about those numbers, I would have felt crushed when a "higher" reading Dynojet showed something lower or I would have been pulling things apart to figure what has gone wrong. In my case it was a 45 rwhp difference from the Dynojet I typically used. The Mustang Dyno it turns out reads the highest, found out later it was because the individual who runs it got in and adjusted one of the multipliers or something in a file to inflate numbers to what they thought they should be. I've used 4 different brands of dyno's and all read differently. Using a dyno to measure the power to achieve a number is part of the game and does provide bragging rights, but only if others are dynoing on the similar dyno's or even the same one. Which is why its always advisable that ANY tuning or installing/removal of parts, is measured on the same dyno and at similar weather conditions (climate such as temperature, humidity and barometric pressure) can drastically effect power numbers, in order to keep the comparisons consistent. Its been noted that there can be discrepancy of anywhere from 5% to 15% from the other manufacturers.ĭynoDynamics are mostly portable dynos that measure power at the hub, but they do make roller dynos too.Īll dyno's, should be less about how much power can be made, and instead used as a tool to measure a gain or loss on an engines performance. Which generally reads considerably lower than any other dyno manufacturer. Mustang dynos are considered "heart breaker" dynos, but are considered to be more accurate in their measurement because they have formulas that also calculate the vehicles weight and a general value for wind resistance for a car at speed. Its takes that value of torque and multiplies it by 5252rpm and gives you a linear reading.įrom my experience, Dynojet is a "hopes and dreams' dyno since compared to the other 2 common manufacturers, reads a bit higher. IIRC, its read as how much torque is needed to move 550lb-ft weight in one foot. Torque is measured by how much force is required to move a certain amount of weight (cant remember the exact measurement) within the distance of 1foot. The simple match is Horsepower = Torque x engine RPM / 5252. Their accuracy is relatively simple if you're just looking for a power number. ![]() Accuracy can be all over the place on a dyno because their values can be changed to read a higher or lower value. ![]()
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