Before you get on the dyno

Before you have us tune your car, there are a number of important things to verify. If there is a “small problem” that is unknown before the dyno session, it can nullify

The pre-dyno check list is similar to the pre-track check list:

  • – Test the intake system for leaks
  • – Check, clean, or replace air filter
  • – Check engine oil level
  • – Check coolant level
  • – Check brake fluid level
  • – Check wheel bearings for excessive play
  • – Check that all suspension components are tight
  • – Check or replace fuel filter
  • – Bring plenty of fuel

It is very important to ensure that your vehicle is in good mechanical health before tuning it on the dyno. If you are using a custom tune (NA or turbo), we first send a base tune. This tune should be very close to the final tune in idle and part throttle drivability, so will be sufficient for startup and leak checking.

Before the tuning session begins, it is best to make sure you are tuning a healthy engine. We suggest you complete a compression test and a leak down test prior to your tuning appointment.

Please know that even if either of these test results look good, you can still have an engine that has some mechanical issue and the tuner/calibrator should be able to recognize any negative symptoms and consult with you about the consequences of further tuning your engine.

Make sure your air filter is clean and in good working order. Cleaning or replacing your air filter at regular intervals (according to the manufacturers instructions) is always a good idea, especially before a dyno tuning session.

Vacuum, pressure, or smoke check all intake, charge pipe, intercooler, turbo, and vacuum lines. If it is a turbocharged car, pressure test the system to between 1.5 and 2 times the target boost pressure. Couplers can appear sealed and hold vacuum or low pressure smoke just fine, but leak when re-shaped by high boost pressure. Smoke test, vacuum test, or light pressure test naturally aspirated cars.