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Thread: valve clearance specs?

  1. #1

    maka_RTH's Avatar
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    valve clearance specs?

    k, i'm getting the stage one tri-flow Colt cam, and i was wondering if the valve clearances are the same as stock or if they're different. if they're different, i need to know them. i'm installing the new cam thursday, and i'm trying to get everything i need tomorrow (or today.., it's after midnight...). so, anyways, anybody know this?
    Greg

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    2008 CBR 600RR -- 1995 Toyota Supra NA -- 2013 Nissan Frontier Pro-4x



  2. #2

    A20A1's Avatar
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    You will get a cam card with the clearances... but you can start out with a larger stock gap and then slowly tighten the gap after some use. The gaps should be listed on the sticker under the hood.
    - llia


  3. #3

    maka_RTH's Avatar
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    i'm getting the cam used from another member..., and he said he couldn't remember if he got a cam card or not with it.., so i was just wondering if anybody else that has got this grind has it handy or something.
    cam specs:
    intake 260, 384 lift
    intake 270, 384 lift
    exhaust 274, 402 lift
    Greg

    1989 LX-i 2dr 5spd (R.I.P.)

    2008 CBR 600RR -- 1995 Toyota Supra NA -- 2013 Nissan Frontier Pro-4x

  4. #4
    LX User mr eff's Avatar
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    i bought a mild performance (triflow) camshaft from colt, you need to readjust the valves to stock clearances

    .05 - .07 for intake
    .10 - .12 for exhaust

  5. #5

    AZmike's Avatar
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    He meant 0.005-0.007 intake and 0.010 - 0.012 exhaust
    Mike

  6. #6
    LX User mr eff's Avatar
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    yeah ... who measures things in thousandths of inches, anyways?

  7. #7

    bobafett's Avatar
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    honda does


    not that u need the info, a delta cam need .060 intake and .080 exhuast.

  8. #8

    k-roy's Avatar
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    Quote Originally Posted by mr eff
    yeah ... who measures things in thousandths of inches, anyways?
    Every single automobile manufacturer on this planet.
    ------------------

  9. #9
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    Um... I'm about to put in a new cam... Geof from Colt Cams wrote: .006 intake, .007 exhaust (cold). Is the exhaust valve spec too low... I mean could he have made a mistake wirting .007?

  10. #10

    A20A1's Avatar
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    not really, it's just safer to have a larger gap cause that makes sure the exhaust valve has a chance to transfer heat properly to the head.

    You'll get more power from the cam with the smaller gap though.
    - llia


  11. #11
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    actually honda doeasnt.
    they use mm

    anyway, always use stock spec. the cam does not change that. valve clearances are for expansion of the valves as the motor heats up. if its to loose they will make extra noise and lower performance. if they are too tight it can burn a valve.

  12. #12
    LXi User
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    Soo..... I should use stock gap? Hmm... I'll set it at .006 in and .010 ex and see how it sounds...

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