What is a custom tune?

As mentioned in the above section, if you move past simple “bolt-on” enhancements, and are looking for more serious efficiency gains, you will also need to move into the world of Custom / Dyno tuning.

In this space, you have added much more serious enhancements to your car involving airflow, fuel, etc. In order for you to take the most advantage of these physical upgrades, we need to create a custom map / tune for the car.

The Process (Simplified):

• Step 1 - The car has to be put on a dyno

• Step 2 - Run the car on the dyno to collect data elements.

• Step 3 - The tuner reads the data, makes changes to the map, and tests the results of these changes.

• Repeat Step 2 & 3 until the tuner is happy with the results.

The interesting thing is that 2 of the exact same cars with the same changes may require a slightly different map.

The tuner uses various software packages to make changes to a variety of data in the map such as: air, fuel, ignition timing, throttle response, etc. to maximize your vehicles efficiency. This process may take several hours, and if there are issues with the engine, several days to complete the process.

As you can imagine, with the software, dyno time, and tuner’s time to make all of these changes, these types of tunes are not in-expensive. If you have spent a bunch of $$$ on engine mods, then this piece of the project will be well worth it.