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Cats and cam?

This is a discussion on Cats and cam? within the Internal Engine forums, part of the LSx Technical Help Section category; Whos running a cam and cat's? Becuz my car is in the shop get the cam installed and they said ...

  1. #1
    Member crapyboy750's Avatar
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    Cats and cam?

    Whos running a cam and cat's? Becuz my car is in the shop get the cam installed and they said it wouldn't sound as good since i have cats. So you guys that have a cam and are running cats can you post up a video so i can hear how it sounds?

    Edit: I have hi flowing cats if that makes a difference.
    Last edited by crapyboy750; 07-24-2008 at 01:58 PM.

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    Slow'er'Ass Mr. Luos's Avatar
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    You will loose a few HP. Nothing that you can really feel.

    It might not be as loud is all. The lope will still be there.

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    Member crapyboy750's Avatar
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    Ok good the lope was my main concern.

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    Track Whore 570SX's Avatar
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    to the OP:

    please note that since that big cam isn't going to make a lot of vacuum at idle (kinda depends on how big, though), it's going to like to idle rich. and that means those nice cats are going to die much, much sooner. the platinum (the actual catalyst in "catalytic converter") is a good catalyst for breaking down organic molecules, but as it does this, it heats up. when actual fuel goes through the engine and into the exhaust, without burning, it gets onto the platinum-covered fins of the converter, and the converter goes to town breaking down these big (compared to the molecules it's supposed to be breaking down) organic molecules. but the platinum heats up as it does this, and so your cats will "burn out" much more quickly when your car runs rich.

    solution: get a good tune, and replace the cats more often, if you're in a state that gives a rat's behind. otherwise, pull 'em. they're heavy, worth ~$12 to a recycler, and besides, look at the 3,000,000 semi's on the roads of the US w/o any kind of emissions regs at all. not to mention all the dozers, cranes, and other heavy equipment in the same boat. more power to you for caring about our air, though. thanks for offsetting me .
    Last edited by 570SX; 07-25-2008 at 04:29 PM. Reason: my smiley didn't work
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  5. #5
    Just a slow Camaro KING Z28 HAWK's Avatar
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    Yeah what they said what cam are you having installed?

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    Member crapyboy750's Avatar
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    custom comp cam 232/234 114

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