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Thread: Passing EPA "noise test and anti-tampering" information + photos of results

  1. #1
    New Member derku's Avatar
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    Passing EPA "noise test and anti-tampering" information + photos of results

    I recently went through an EPA test for "noise test and anti-tampering" and thought this might help those who have been EPA'd think ahead before booking in.



    The noise test. They have a metal pre-fabricated jig that aligns the distance and angle for which the microphone is aimed at your exhaust so its consistent.



    Noise for typical 4 cylinder cars are performed at 75% of factory redline which must be below 90dBa. Each car is different.



    The anti-tampering inspection check list:



    I didnt take any photos here on but after the noise test they put your car up on a hoist and roll a bar on sliders between your wheels from front lip to rear lip. The bar is calibrated to 100mm from the base of the wheels. If anything hits, you'll fail and be defected for low ride-height regardless of what you were booking to check.

    They then check thoroughly for any (additional) problems and take lots of photos of the entire car, especially the engine area from above and below when its up on the hoist. The inspection and testing process takes about an hour and currently cost $60 regardless if you pass or not.



    Having non-compliant modifications and using the term "YOLO" (which I find annoying) wasnt really appropriate so I invented a new term for this ordeal:

    LAL = live and learn

    Play by the rules and you wont get in trouble in the first place.


    Kind Regards,
    derku
    Last edited by derku; 22-12-12 at 05:37 AM.
  2. #2
    New Member daihiro's Avatar
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    thanks for sharing man!
    hopefully i never get EPA'd
  3. #3
    Member Larry's Avatar
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    What happens if you have a stock exhaust and it's over the decibels? LOL.
  4. #4
    Member (Locky)'s Avatar
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    Went through I put everything back to stock on my s14, plus juacked up the coilovers just to be safe
    With stock everything it still was 88DB load so any aftremarket exhaust isnt going to pass if it sounds loader than stock


    If you then fail the visual inspection, or want to try and prove that your mods meet emissions you then have to go to the test center and they put you on a dyno and see what comes out the back of the car
  5. #5
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    The height thing must be new.

    I went there with my car still sacked and my front mount was still on.

    All I did was change my catback (so it was still 3" front pipe)

    Got rid of my BOV and put an airbox on.

  6. #6
    Member KidDynamite's Avatar
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    Passing EPA "noise test and anti-tampering" information + photos of results

    Quote Originally Posted by LOE200 View Post
    The height thing must be new.

    I went there with my car still sacked and my front mount was still on.

    All I did was change my catback (so it was still 3" front pipe)

    Got rid of my BOV and put an airbox on.

    +1 ride height must be new I've been to the same centre when my car was sacked all they cared about was loudness and under car and engine bay


    Sent from my iPhone using Tapatalk
  7. #7
    Member philz's Avatar
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    Quote Originally Posted by derku View Post
    LAL = live and learn

    Play by the rules and you wont get in trouble in the first place.
    this nigguh knows what's up.
  8. #8
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    Thanks for sharing your EPA experience with us. I feel much more at ease now in terms of standards when I have to bring my car down for a check.
  9. #9
    Member cree's Avatar
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    I took my car there recently for rider height, still below 100mm and they signed it off.
  10. #10
    Dahtone Racing 2GU UP's Avatar
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    That "bar on sliders" is a jack to lift the car if you need to lift the car so wheels are able to be removed.
    He moves it so he can take photos of everything without it being in the way.
    It has nothing to with ride height. Ive taking nearly 20 cars to Waminda Service Centre for DECC testing and never had an issue with height and most of them are dragging their balls on the road.

    As long as the car has no visible aftermarket boost controller, stock bov or none at all, factory fuel pressure reg, stock cat/s, stock intake setup (ie airbox and resonator) and the noise is below the legal limit you will pass with out any issues.
    Dahtone Racing
    www.dahtoneracing.com
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