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Camshaft

This is a discussion on Camshaft within the Internal Engine forums, part of the LSx Technical Help Section category; I have an 02 SS with an 02 z06 cam and springs. Specs(205* intake, 219* exhaust Lift: 0.551 intake, 0.549 ...

  1. #1
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    2002 Camaro SS

    Camshaft

    I have an 02 SS with an 02 z06 cam and springs.

    Specs(205* intake, 219* exhaust Lift: 0.551 intake, 0.549 exhaust LSA: 117.4). I was told this is the largest cam I can install before the engine light comes on. Is this true? I DO NOT want to take anything out of the system in order to run a larger cam. I want all the.emissions equipment in place. Rear o2s, converters and air system. What are some specs u guys r running while keeping the emissions equip? Thanks.

  2. #2
    Member jetaws6's Avatar
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    1998 Trans Am Ws6

    Why don't you just write a letter asking for an extension? That's what I do. As for the engine lights and stuff I couldn't help you there. If they do come on you could always tune em out

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    2002 Camaro SS

    I don't want to tune them out. I want all the emissions equip working.

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    Member BlackSS1's Avatar
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    2001 Camaro SS Vert

    Couple questions:

    Do you run stock exhaust, or have you installed headers and aftermarket converters?

    Have you already installed the Z06 cam, or are you in the planning stages trying to choose which cam to install to upgrade from stock?

  5. #5
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    2002 Camaro SS

    Quote Originally Posted by BlackSS1 View Post
    Couple questions:

    Do you run stock exhaust, or have you installed headers and aftermarket converters?

    Have you already installed the Z06 cam, or are you in the planning stages trying to choose which cam to install to upgrade from stock?
    It has borla exhaust, aftermarket converters, but stock manifolds. The cam and valve springs are already installed. I guess if I think about it, the z06 cam specs are pretty good for a street car. I did have it at a tuner and he said its running too fat right before wot. He also said it has room for improvement both in power and economy. A street tune is $400.

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    Member BlackSS1's Avatar
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    2001 Camaro SS Vert

    Unless you are going to install long-tube headers to let a bigger cam breathe (you would have to tune out the rear O2 sensors even with convertors)...

    I'd recommend get a good tune and call it a day.

    Cheers

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    2002 Camaro SS

    It's are a future definite.

  8. #8
    Slow'er'Ass Mr. Luos's Avatar
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    228R can make it past emissions here in Colorado.
    Could probably go a little bigger if you wanted to have a tune for emissions and one for the other 364 days of the year.

  9. #9
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    2002 Camaro SS

    Quote Originally Posted by Mr. Luos View Post
    228R can make it past emissions here in Colorado.
    Could probably go a little bigger if you wanted to have a tune for emissions and one for the other 364 days of the year.
    What manufacturer is 228R?

  10. #10
    Slow'er'Ass Mr. Luos's Avatar
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    Most all are COMP cams.
    The specs of the 228R are from Texas Speed.

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    you need -5*to -7* over lap on a cam to pass most emissions.consider a thunder racing tr224 at 114 lsa.or get a custom cam,you will need more exhaust timing with a stock exhaust.there are a couple of cams designed for your needs.

  12. #12
    Member LSXZ28's Avatar
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    If you want something bigger, I would get a custom cam... but, keep in mind you will have to change the springs.

    If you decide to keep the one you have, get a good tune on it...

    GM EFI Tuner
    2002 Trans Am WS6 - 9.41@143mph, #3675, on pump gas and drag radials - sold

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