Jump to content

Big Gray

Members
  • Posts

    249
  • Joined

  • Last visited

Posts posted by Big Gray

  1. With regards to the piston ring/oil consumption problem on these engine. The cause is nothing to do with the design or fit or how the compression rings work. The problem lies in the oil scraper ring, the problem being that they do a poor job, leaving too much oil, allowing it to get into the combustion chamber.

    Some my be aware of a factory modification on them for certain engines.

    This is from an Italian vw forum .

    03C 198 151 M The old one >>09.01.2012

    Composto da:

    Segmento Sup. 76,5x1,2

    Segmento Inf. 76,5x1,2

    Anello Raschiaolio 76,5X1,9

    03C 198 151 Q New one from 10.01.2012>>

    Composto da:

    Segmento Sup. 76,5x1,2

    Segmento Inf. 76,5x1,2

    Anello Raschiaolio 76,5X2

    Notice that the scraper ring is increased of 0.1mm

    Seems to have fixed the issue in some, others with no joy, But that is most likely down to the dealers not honing the bores before fitting!

    Gray

  2. For other data on hard acceleratin between 4.5k and 5.2k rpm he was sucking in 194g/s producing 2.6 bar intake manifild pressure and around 25-30hPa vacuum before turbo! I think this with stage1 and other bits installed.

    Not too sure that's right the 2.6bar (I'd be worried if it is). By my reckoning it's boosting @ 1.6?. Did you knock the ambient off the actual sensor value?

    Gray

  3. Just checked Gray logs again for ambient and intake air temp. I think even after him wrapping something (judging by the title of logs, Please confirm mate) the temps were really surprising!

    No wrapping... Yet...

    I was planning to wrap the the pipe from the Turbo > Intercooler in this stuff due to it's proximity to the cat, Hopefully that may be able to reduce the heat soak which I'm sure there must be at that distance (I can barely get my fingers between them) and lower the temps a little. It has also crossed my mind to wrap the body of the ITG in it too, I notice from the logs that the temps steadily rise when sat in traffic.

    Gray

  4. There's no way it would exit the turbo at 40 degrees, id also say that 40 degrees before the turbo would actually be high as thats air should be at ambient temperature because it hasn't been compressed yet.

    Had another look at that today, seems the 40°C appears as a spike after the supercharger has been run, it drops back to about 2°C over the intake temp when running on just the turbo.

×
×
  • Create New...

Important Information

Welcome to BRISKODA. Please note the following important links Terms of Use. We have a comprehensive Privacy Policy. We have placed cookies on your device to help make this website better. You can adjust your cookie settings, otherwise we'll assume you're okay to continue.