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Thread: Piston Coating?

  1. #1
    Chrisrokc's Avatar
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    Piston Coating?

    http://swaintech.com/store.asp?pid=10315

    I saw where Ross posted this up in a 1390 thread. Anyone do this besides him?


  2. #2
    WATER WOODY's Avatar
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    My new Triple motor will have it.

  3. #3
    Chrisrokc's Avatar
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    Quote Originally Posted by WATER WOODY View Post
    My new Triple motor will have it.
    Can you do it after the fact? Or do you need to have the motor bored out more to accommodate?

  4. #4
    Hello Chris, The clearances do have to be fitted after each piston is coated. I believe it adds less than a thousandth to the piston diameter. Do both the skirt friction coating and crown thermal barrier coatings.

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    Moderator OsideBill's Avatar
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    Quote Originally Posted by rossnemo View Post
    Hello Chris, The clearances do have to be fitted after each piston is coated. I believe it adds less than a thousandth to the piston diameter. Do both the skirt friction coating and crown thermal barrier coatings.

    +1 Swaintech has been at this a long time, I suggest to go with the proven companies on this type of stuff.

  6. #6
    Chrisrokc's Avatar
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    Talked to Ben. I am adding this to my build!

  7. #7
    Hydrotherapy's Avatar
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    lowell has my cylinders and pistons right now,would a ported lump gain from this or is it only for you bb guys,
    if its any good for me i might try to get him to send them to be done before he sends them back to the uk...

  8. #8
    Duke's Avatar
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    Any motor will gain from this IMO, but as Ross said the jugs must be finish honed to accomodate for the added material.

    OEM 1300 slugs 05 and up already have a friction coating and thermal on the crown.

  9. #9
    Moderator OsideBill's Avatar
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    I went with the TBC on top and PC-9 on the skirts. The PC-9 is applied to .0008" (.0203mm) thick so it adds .0016" (0406mm) total diameter to the skirt. I was told the PC-9 can be re-applied after a season for added lubricity and benefits. I was also told for the two stroke applications that the "Gold coat" had no added benefit vs the TBC so money was better spent on the TBC. the coated piston is the one on the left.
    Attached Thumbnails Attached Thumbnails Click image for larger version. 

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