Why do you need to Sync your Ignition Timing?

Syncing the ignition timing when using an AEM Infinity EMS is a key step in the start up process.

Using a timing light to check the physical timing at the engine matches the timing value displayed in the Infinity-tuner software will ensure the timing #s in the map and in the data logs are 100% accurate.

This YouTube video will walk you through the step by step process of syncing/tuning the ignition timing.

If you need more help getting your Infinity ECU set up, custom Base Map or your current tune dialed in check out Infinity E-tune options and feel free to contact us any time.

Please NOTE Holley purchased AEM Electronics in 2021 and proceeded to discontinue all AEM ECU’s. The only AEM ecu’s on the market now are old used items. We highly recommend using out Motec M130 ECU packages as an alternative to the older AEM Infinity ECU’s. The Motec M1 series ECU goes unmatched in the world of Motorsports and truly sets the standard for all other ECU’s to be compared to.

Ignition Timing and Knock

Syncing the ignition timing is the 1st step in tuning the ignition timing of any engine to ensure reliability and peak torque output AKA Horse Power. If the ignition timing is not sync’d correctly Infinity tuner and AEM data will not display actual ignition timing that the engine is seeing.

For example:

  • Timing at the engine during idle is 20 BTDC (as seen by timing light)
  • Timing in AEMtuner displays 15* ign timing during idle
  • 20 – 15 = 5 This means the entire timing map will be off by +5*. This can easily lead to knock and engine damage.

Tuner tools for Ignition Timing Tuning

Here are a few of the basic tools/sensor and accessories we highly recommend for any modified/tuned engine. These parts & accessories can be found on all of the Brewed Motorsports built and tuned shop cars. From Drag to Drift to Rally we love all forms of motorsports! 

AEM Infinity Ignition Sync on S15 Silvia

Best Spark Plugs SR20det 

Check out the link above for a breakdown of the best NGK spark plugs to use with any SR20 engine build. From stock to fully built race engine our partners at FFrides have you covered with all the NGK spark plug options you could ever need.
Below you can find a few more of the most popular sensors and supporting parts used on all of our Motorsports engine builds to perfectly match any of our Motec, Haltech, Link or Emtron ECU packages.

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