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Dyno

Why we measure before and after every calibration

A baseline run shows what your engine delivers today. Only then can you honestly say what a calibration adds.

Car on the dyno, with a technician and laptop beside it.

Factory figures are an average. Two cars with the same engine can differ noticeably on the dyno, because of wear, maintenance, fuel, temperature or earlier modifications. So we do not start from the number in the brochure, but from the car itself.

The baseline run

Before we change anything, we measure the car as it comes in. That baseline shows what the engine delivers today, and whether something is already wrong. If the power is far below what you may expect, we look for the cause first: a leak in the intake, a dirty air filter or a sensor sending the wrong values. A file does not fix a mechanical fault.

Equal conditions

A fair comparison needs the same conditions. The same gear, the same tyre pressure, an engine at operating temperature and enough cooling for the car. We repeat a run until the results are stable, so a single outlier does not decide the picture.

The final run

After the new software is written, we measure again, in exactly the same way. Both curves go into one graph. That way you see not only the highest number, but also where the torque builds and how flat the line runs. That mid-range is what you feel in everyday driving.

What you take home

  • The power and torque curves before and after in one graph
  • The peak values and the engine speed at which they occur
  • An explanation of what we saw during the runs

Measuring also protects

During a run we look at more than power. Boost, temperatures and the shape of the curve tell us whether the engine is healthy. An uneven line or a temperature that keeps rising is a reason to stop and find out what is going on first.

So measuring is not a formality. It prevents wrong expectations, it protects the engine and it gives you proof of what you paid for.

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