Quote:
Originally Posted by blumango
But if we can just get the number from Mustang somehow, it'll be a lot more accurate than Dynojet. On the Dynojet it's like you are running in cyber space...wouldn't that affect the AFR readings too?
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Accuracy is relative -- you'd really have to pull the motor out for a "true" value anyway.
What matters is consistency.
For an individual car, that means sticking with the same shop; across cars, that means the same values must be entered for the formulas used to estimate power and torque -- on dynojets, that value is fixed (known weight and diameter of drum) on load bearing dynos, that value may be quite different from shop to shop.
Load holding dynos are better for tuning, and perhaps for making comparisons for a single vehicle, but they make it much harder to evaluate the results for any one specific vehicle in relation to data gathered from other vehicles at different shops.