07-28-2013, 07:17 PM
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#1 (permalink)
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Base Member
Join Date: Mar 2013
Location: Singapore
Posts: 75
Drives: 2010 370Z Roadster
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I meant accuracy on power you are making at the wheels. If given values are keyed in correctly on a Mustang, we should be getting a more "real-life" measurement of power rather than one that only includes the weight of the rollers in the algorithm. And what's most important is AFR....without load (Dynojet), wouldn't that be extremely different when you are actually driving on the road?
Quote:
Originally Posted by Jordo!
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.
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