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Used 83mm JE Pistons for 1.8T 9.0:1 Compression Ratio

davkav Mar 10, 2014

  1. davkav

    davkav Member

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    [TD="class: alt1"] I am selling my JE 83mm Pistons for 1.8T platform.

    I am moving back to standard 1.8T pistons with forged rods.

    The pistons have roughly 6,000 miles on them and have slight rubbing on the piston skirt but should not effect their performance.

    I have brand new wrist pins from JE included in the sale. I bought these last year as I thought the small end of my connecting rods had failed but this was not the case.



    Looking for £250

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    Last edited: Mar 11, 2014
  2. g60leigh

    g60leigh Well-Known Member

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    Are these still available?
     
  3. davkav

    davkav Member

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    still here
     
  4. davkav

    davkav Member

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    Price reduced to £150 based on what these are priced as new.

    Just to be clear these do not include piston rings as new ones would be required for a new build.

    I also have a 1.9 head gasket to suit that I will let go for £50 with the pistons.
     
  5. motfree

    motfree Member

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    You got a 1.9 crank ??
     
  6. davkav

    davkav Member

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    No sir! I used the stock 1.8T crank with these 83mm pistons.

    A 1.9 crank with these pistons would give you 2.1L

    See the possible configs below:

    86.4mm stroke = Stock 1.8T Cranks
    92.8mm stroke = Stock 2.0 FSI Cranks
    95.5mm stroke = 1.9 TDI Crank

    81mm bore x 86.4mm stroke = 1781cc
    83mm bore x 86.4mm stroke = 1870cc
    83.5mm bore x 86.4mm stroke = 1892.7cc
    81mm bore x 92.8mm stroke = 1913cc
    83mm bore x 92.8mm stroke = 2008cc
    83.5mm bore x 92.8mm stroke = 2033cc
    83mm bore x 95.5mm stroke = 2066cc
     
  7. motfree

    motfree Member

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    Ok thanks.
    Not sure it's worth me doing it on a standard crank ... Won't see that many gains I don't think ...
     
  8. davkav

    davkav Member

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    Don't mean this in a smart way but I would do more research.

    2mm more in the cylinder bore makes a massive difference in power band and low end torque.

    Edit: Also not to mention the lower compression of these pistons over stock
     
  9. Callum-TT

    Callum-TT Member

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    Still got these?
     
  10. davkav

    davkav Member

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    Still here.
     
  11. Callum-TT

    Callum-TT Member

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    How confident are you that these will not be an issue?
     
  12. davkav

    davkav Member

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    I'd be pretty confident.

    Honestly you can't even feel the marks with your nails they are that fine.

    Once the block is bored to specification there should be zero issues.
     
  13. chris.vincent3

    chris.vincent3 Own a BMW now, HOWEVER I still own VCDS! VCDS Map User

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    where the marks are they won't cause any problems due to them being under the piston rings, the marks won't have any affect on compression.
     
  14. Callum-TT

    Callum-TT Member

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    I'll take them then fella.
     
  15. g60leigh

    g60leigh Well-Known Member

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    Messaged you Davkav
     
  16. davkav

    davkav Member

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    Still here.

    I have since had them down with machine shop I use. Westward Engineering in Kildare, Ireland, a very reputable machine shop.

    He doesn't see any issue with the pistons and says they are perfectly fine to use with new rings.

    Dave
     

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