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You can make a mustang read whatever your little heart desires by changing the perimeters. It’s an electronic load cell. By dragging the brake etc it’ll change the numbers. Great for tuning a car pretending it’s on a road, going up a hill, down a hill etc. For these reasons no mustang will read like another and tuners will always mess with them and who knows if they ever reset to factory. Not to mention the brakes or the cell can wear out over time and need service giving wrong numbers.
A Dynojet is an inertia dyno. Spin a big heavy ass drum up to speed in X amount of time and you get a number. You cannot change a Dynojet, you cannot mod it, there’s nothing to wear out but maybe a bearing. Dynojet has set the calculations and you cannot change them. Dynojets will always read true and extremely close from 1 to an other. If you want real numbers, it’s a Dynojet as long as you don’t cheat and use the SAE correction calculation. STD is old school and reads higher and your motor was tested using SAE so use SAE!!!!!!! Uncorrected is only useful to see your numbers in read time vs a perfect real world temp, humidity, barometric etc. Dynojet using your cars 1:1 gear using uncorrected will give you 100% accurate numbers if you pull off the dyno and go do a drag run since only a real HP number can move a x,xxxlbs object 1/4 mile in x.xx seconds. It doesn’t make sense to do an SAE or STD then go drag race when it’s not the ideal weather and temps. Your times won’t match you HP numbers.
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