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  1. #1
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    Supertech valvetrain upgrade kit (springs with titanium retainers)

    What would these safely rev to with stock 2009+ valves?
    What would be the highest over-rev RPM these could go to?

    Thanks


  2. #2
    monaroman76's Avatar
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    Quote Originally Posted by lolzer View Post
    What would these safely rev to with stock 2009+ valves?
    What would be the highest over-rev RPM these could go to?

    Thanks
    I'm thinking 8800.

  3. #3
    Orlando Shark's Avatar
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    On a stock motor I've seen it rev to 9500 with the Supertechs.

  4. #4
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    Quote Originally Posted by Shark View Post
    On a stock motor I've seen it rev to 9500 with the Supertechs.
    O_O

    Was this on your ride?
    With stock cams/valves?

  5. #5
    stuckmoto's Avatar
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    There are other members revving 9300 with them.

  6. #6
    www.eastcoastpwc.net Scott's Avatar
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    Quote Originally Posted by Shark View Post
    On a stock motor I've seen it rev to 9500 with the Supertechs.
    on stock valves? rev numerous times over 9500 or just once

    Quote Originally Posted by lolzer View Post
    O_O

    Was this on your ride?
    With stock cams/valves?
    +1

    Quote Originally Posted by stuckmoto View Post
    There are other members revving 9300 with them.
    I'm revving 9k but I also did lightened valves

  7. #7
    Orlando Shark's Avatar
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    Quote Originally Posted by lolzer View Post
    O_O

    Was this on your ride?
    With stock cams/valves?
    Not on mine but I know a few consistantly revving 9500. I should be revving a bit more with built motor, lightweight valves etc.

    I say it's safe to run 9200 on stock valves with the Supertechs. Those running 9500 are pushing the limits a bit but there haven't been any failures that I know of.

    And yes, stock valves, stock cam and a few with the "29" stock cam.

  8. #8
    Moderator Snoman's Avatar
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    Quote Originally Posted by Shark View Post
    Not on mine but I know a few consistantly revving 9500. I should be revving a bit more with built motor, lightweight valves etc.

    I say it's safe to run 9200 on stock valves with the Supertechs. Those running 9500 are pushing the limits a bit but there haven't been any failures that I know of.

    And yes, stock valves, stock cam and a few with the "29" stock cam.
    how high do you think the "29" cam is good for??? 9000 rpm???

  9. #9
    Orlando Shark's Avatar
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    Quote Originally Posted by Snoman View Post
    how high do you think the "29" cam is good for??? 9000 rpm???
    With stock head 9200 is safe. With lightened valves 9500+ has been ran by many with no problems.

    Now if you are asking about cam efficiency then Duke would be the man to ask. I know he's been testing a few setups.

  10. #10
    Moderator Snoman's Avatar
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    Quote Originally Posted by Shark View Post
    With stock head 9200 is safe. With lightened valves 9500+ has been ran by many with no problems.

    Now if you are asking about cam efficiency then Duke would be the man to ask. I know he's been testing a few setups.
    Well i have/run a "29" cam and am in the process of rebuilding the whole motor including the head..Port,Seals,light weight valves and was trying to decide which springs to use also....Plan on maybe spinning it 8600 max but am not sure yet...

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