tunermt

Recently i have had a lot of people asking about the Infinity ecu's and what sets them apart from the other ECU options on the market.
Now that a few manufactures (AEM, Velocity Element) have finally released affordable plug and play adapter harnesses for the 2jz you can get a plug and play Infinity/harness package for less than $1900 which is a hard value to beat.

After tuning a few Infinity brained JZ's I wanted to share some details about the Individual cylinder knock control functions and cylinder trims. For the full write up and build details of the the engine from the data logs below check out the Blog. AEM Infinity 6 2jz tuning

The Infinity’s individual cylinder knock control coupled with a VE dual knock sensor kit delivers a clear “tunable” frequency, flat response or “wide band knock sensor” knock signal. This high resolution engine noise data can then be fine tuned even further calculating precise ignition/fuel changes per individual cylinder.


By using the VE wide band knock sensor kit and harness through a proper calibration we are able to fine tune each cylinder through the Infinity ems for peak performance and reliability. The Individual cylinder knock monitoring also allows us to monitor which cylinders are prone to problems, aka “unhappy cylinder”. By trimming fuel and ignition per cylinder we are able to keep each cylinder “happy” ensuring all cylinders get exactly the fuel/ignition timing they need for peak cylinder pressure without any pre ignition or detonation aka Knock. The data logs below clearly show a pull when the Infinity is picking up some knock from cylinders 1 and 5 and a pull where the tune/infinity have better balanced each cylinder and the knock control does not need to make any changes.

Cylinders 1 and 5 starting to pick up some noise:


All cylinders balanced, no engine noise from any cylinders:


Notice the first log you can see cylinder 1 & 5 just starting to pick up some engine noise while the other cylinders remain very quiet. In the second log after further tuning you can see where all cylinders are “quiet” and better balanced. This data is extremely useful and allows us to fine tune an engine further with more reliability than ever before. This same engine on another ECU without the flat response/wide band knock sensors would not have been able to pick up this small amount of engine noise let alone assign it to individual cylinders. Correctly setting up individual cylinder trims and fine tuning knock control to this level requires both Dyno and Track or “off road” driving data. All Brewed Tunes for Infinity ems Dyno or Etune cover this critical portion of the tune to ensure the best performance possible.

For more pictures and Infinity tuning details about this particular 2jz check out the blog: Infinity 6 2jz supra tune

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tunermt

Wiki "engine Knock" page gives some decent basic information (not perfect but not a bad place to start if you don't already have a good understanding of engine noise, knock, detonation, pre-ignition.

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Brewed Motors IG @Brewedmotors

tunermt

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Brewed Motors IG @Brewedmotors

tunermt

Any other Infinity users here on Zilvia?

What have been your favorite features to use thus far?

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Brewed Motors IG @Brewedmotors