Supra Emissions Data
by C. Jensen

What's New
• (2/09/99) - This data is with the all the modifications listed on the mods page installed with the exception of the Lexus air-fuel upgrade. The fact that all measured levels are still under half of EPA limits is more proof of the Supra's extremely clean running even with current elevated mileage. This leads me to believe she's got many more years of "modable" life in her :-)

• (3/27/97) - This data is from an emissions stock MkIII with no emissions altering hardware installed. At this point, all that was on was an HKS 65mm exhaust system, a K&N FIPK intake and an HKS VBC controlling the boost. All levels are great. Supras generally run extremely clean due to their highly sensitive ECUs, twin cats and fine tuning.

  Background

  There isn't really much background here yet... I'm working on some info... Something more will be up here soon... This truly is still a page in progress.

  Like my oil spectrum analysis data, I've decided to publish the data I've compiled so far as well as my graphs. The data consists of scans of the actual Vehicle Emission Test Reports plus I have everything entered into Excel 8.0 and generated a three-dimensional graph to show all the data and trends at once.

  Since this data will be updated as I get more done, I've included a graphical link up top to allow you to quickly drop down to the data since this background data shouldn't change much... Here we go:

  
  
  

  Emissions Data 3-D Plot

Scanned Data (w/ private vehicle data digitally removed)

Feb 9th, 1999 Data Mileage: 91517		Mar 27th, 1997 Data Mileage: 76500

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Head back to my mods page... Top of the Page

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Christopher M. Jensen

© 1995/96/97/98/99 CJ Inc.
Created: Feb 10th, 1999
Last modified: Apr 22nd, 1999