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Well when I first got the car I was not aware of any dyno shops in the area, and I wasn't all that interested in them. I don't know exactly what my car would dyno stock but I have a ballpark estimate that on a dyno jet it would make 310WHP in stock form. On a Mustang dyno it would probably make 290ishWHP.
I'm not quite sure what you mean when you say my dyno sheet is a value of 1 vs any hp number?
FYI, to everyone else weighing in after this post I've learned that my car is indeed no "factory freak", as a dyno jet often offers inflated numbers since it does not calculate in all the added variables that the more accurate Mustang dyno does.
The same day I was at that dyno I watched a 2013 Honda Accord V6, all stock put down 256WHP...the car is rated at 278HP. Yeah, I'm pretty sure the numbers on that dyno were inflated.
Its a great summation of why dynos are largely misused and misunderstood by the public. When dyno shops offer "pull days" its basically just a way to make some quick money. The real use of a dyno is to measure before and after power changes when tuning a car, not provide a realistic number of what power the car is actually making.
I'd say that one dyno isn't more accurate over another. The Mustang dyno is known as the heart breaker because it generally produces lower numbers compared to other dynos but that really tells you nothing about its accuracy. As stated by others, if you are using dyno figures to infer actual power output or to compare yourself to other vehicles then you are doing it wrong.
Its a great summation of why dynos are largely misused and misunderstood by the public. When dyno shops offer "pull days" its basically just a way to make some quick money. The real use of a dyno is to measure before and after power changes when tuning a car, not provide a realistic number of what power the car is actually making.
Great article, really helped me understand that a car's dyno numbers have a HUGE range with thousands of factors, especially on modern cars. My car is 12 years old, and while it has an OBD, I'm not sure how much that computer factors in expected cooling winds and such. However, this definitely brings down the hype that most people get over dyno numbers.
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