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Fuel and Emissions

  1. TH Butterfly Cleaning

    by , 16-07-2012 at 10:37 PM (Today at Atelier Kaz - Private NSX Enthusiast, ex-Honda R&D engineer with F1, Indy/CART background)





    Looks like the TH butterfly was never cleaned before.

    As this NSX is the later model, the blowby gas passage is different from
    the earlier models and thus, has the advantages in keeping the TH body clean
    but still, it was really dirty.


    So, before starting the engine, cleaned it as much as possible
    ...
  2. TH Butterfly Cleaning

    by , 01-05-2012 at 10:40 PM (Today at Atelier Kaz - Private NSX Enthusiast, ex-Honda R&D engineer with F1, Indy/CART background)



    Again, with extra tubes and pipes, needs to be careful not to scratch the hidden part of the engine bay when removing the air box.




    Looks like never cleaned in the past.
    The routing of the blowby gas with the red valve cover is far better than the one on the black cover but still, it managed to create sticky residue even
    ...
  3. Sluggish Launch and slow Kick Down response

    by , 12-08-2011 at 11:29 PM (Today at Atelier Kaz - Private NSX Enthusiast, ex-Honda R&D engineer with F1, Indy/CART background)



    In order to check the cooling system after replacing the header tank and the effect of the new Air filter, went out for a test driving session.


    As the original air filter was so dirty (even at low mileage), decided to reset the ECU as well.


    Also, spoke with the owner and he told me that regardless of the engine temperature, quite often immediately after starting the engine, the engine rpm drops significantly and almost stalls ...

    Updated 13-08-2011 at 11:36 AM by Kaz-kzukNA1 (Too many spaces)

    Tags: lev Add / Edit Tags
    Categories
    Fuel and Emissions
  4. Air Filter

    by , 10-08-2011 at 11:29 PM (Today at Atelier Kaz - Private NSX Enthusiast, ex-Honda R&D engineer with F1, Indy/CART background)





    The owner was not happy with the way the engine delivers the power compared to the previous NSX he had.


    He feels that the launch is sluggish and kick down (AT) is slow.


    However, above certain rpm, suddenly, the power kicks in and feels very fast.



    Until he brought his NSX to my place, I got so many emails and phone calls regarding this but the owner’s comment was somewhat not consistent. ...

    Updated 11-08-2011 at 10:35 PM by Kaz-kzukNA1

    Tags: air filter Add / Edit Tags
    Categories
    Fuel and Emissions
  5. Exhaust Photo 02

    by , 09-08-2011 at 09:06 PM (Today at Atelier Kaz - Private NSX Enthusiast, ex-Honda R&D engineer with F1, Indy/CART background)












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    Took photos for the request from the owner.

    NA1, 2002, Rear bank.


    Kaz

    Updated 09-08-2011 at 09:08 PM by Kaz-kzukNA1

    Tags: exhaust Add / Edit Tags
    Categories
    Fuel and Emissions , Body
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