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Thread: pistons

  1. #1
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    pistons

    witch do you guys prefer oem or pro x pistons
    and why
    thanks mike


  2. #2
    krispaintballz's Avatar
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    I prefer wiseco or pro x pistons. But it depends on the mods.

  3. #3
    One day at a time..... N8R's Avatar
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    i like oem 140 hard hours and look new.

  4. #4

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    Quote Originally Posted by N8R View Post
    i like oem 140 hard hours and look new.
    when have you looked at them

  5. #5
    Me Hahn and Joe H204YOU's Avatar
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    1300 oem pistons cause thier good to 90

  6. #6
    One day at a time..... N8R's Avatar
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    Quote Originally Posted by seadoolover View Post
    when have you looked at them
    2 weeks ago

  7. #7
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    The new OEM 1300s are skirt coated and hold up very well.

    1200s are the same Pro-X or OEM.

    Wiesco was great for racing due to the lower weight but seemed short lived. The skirts would collapse a little more then expected and the domes didn't seem to handle heat as well. Also you must run a lot more clearence on them due to their expansion characteristics. However this was my expeirence and some board members have had better luck.

  8. #8
    krispaintballz's Avatar
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    Quote Originally Posted by Duke View Post
    The new OEM 1300s are skirt coated and hold up very well.

    1200s are the same Pro-X or OEM.

    Wiesco was great for racing due to the lower weight but seemed short lived. The skirts would collapse a little more then expected and the domes didn't seem to handle heat as well. Also you must run a lot more clearence on them due to their expansion characteristics. However this was my expeirence and some board members have had better luck.

    Your right, I run some flat tops and they do need more clearence due to the expansion. But I have been running them for awhile now and never have the urge to change to another kind of piston. It is just personal pref.

  9. #9
    Moderator RX951's Avatar
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    Quote Originally Posted by Duke View Post
    The new OEM 1300s are skirt coated and hold up very well.

    1200s are the same Pro-X or OEM.

    ditto n dat

  10. #10
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    Has anyone experienced the pin breaking that holds the ring from spinning on the 1300 efi? I have had 3 broken ones already on 3 different cyls., thats why asking if the pro-x were better than the oems.
    mike

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