Scope Notes and Definitions

Before you follow any guide on this site, read the assumptions behind it. Boost figures, wastegate settings, and ECU maps are written for common platforms under controlled conditions. Your car may differ, and that difference changes the result.

From first call to a clean boost curve

We work in clear stages: you send us the symptoms, we check the hardware, and you leave with a documented setup that holds boost without surprises.

1. Describe the symptom

Tell us what the engine is doing wrong — lag, spike, surging idle, or a code that will not clear. We start from your description and the logs you already have, not from a generic checklist.

2. Pressure test and leak check

We pressurize the intake system to your target boost level and listen for leaks at every coupling, gasket, and weld. A soapy water spray finds the small ones; a pressure drop test finds the ones you cannot hear.

3. Measure what the ECU sees

We log boost pressure, intake air temperature, and wastegate duty cycle on a short pull. This tells us whether the problem is mechanical, electrical, or a mapping issue before we touch any settings.

4. Adjust and re-test

Wastegate preload, boost controller gain, or intercooler ducting — we change one variable at a time and re-test. Each adjustment is logged so you know exactly what made the difference.

5. Document the final setup

You get a written summary with the final boost curve, the parts we changed, and the recommended service interval for your turbocharger. No vague notes, just numbers and part names.

How We Work Through a Diagnostic Job

Initial Inspection and Baseline Logging

Boost Leak Test and Intake System Check

Wastegate and Actuator Calibration

Fuel Trim and Ignition Timing Review

Dyno Verification and Road Test

Each stage follows a fixed sequence so nothing gets skipped. We log baseline data before touching a single bolt, then work through the intake, boost control, and fuel system in order. The final dyno pass confirms the changes hold under load.

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