need help!!! 5.3 cam? HotCam or CompCam

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Thread: need help!!! 5.3 cam? HotCam or CompCam

  1. #1
    Walking
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    need help!!! 5.3 cam? HotCam or CompCam

    i am currently working on a 5.3 rebuild. i am having a hard time choosing which cam to install. a HOTCAM or a comp cam. I would like to install GMPP parts. i would like an honest opinion. everybody on the net is stating that the HOTCAM is not worth it but i dont know for sure. the motor is will be installed in my 2000 S10.

    thank you very much

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    2.4 Liter SIDI ECOTEC
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    Re: need help!!! 5.3 cam? HotCam or CompCam

    Hotcam is low lift/long duration on a short LSA, really more for road racing. It's very lumpy and on a 5.7 it doesn't have great street characteristics, and this will be amplified on the smaller displacement motor.

    Frankly if you want my opinion, a camshaft is a camshaft and there is no benefit to being limited to the very few GM aftermarket cam offerings.

    You would also need to state your goals for the truck, ie mild to wild, for someone to be able to make a recommendation.
    2001 Pontiac Trans Am
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  4. #3
    2.8 Liter Turbocharged V6 Cphelps's Avatar
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    Re: need help!!! 5.3 cam? HotCam or CompCam

    I went with a hotcam in my LS1, and now wish I had gone bigger. The 112° LSA does make it idle pretty lopey (which I like), but its low rpm characteristics definitely are noticeably worse. Not a huge deal with my 6-speed, especially after the tune, but I could see it being more annoying with an auto and stock stall converter (you didn't mention what transmission you'll be using with the S10). It drove before the tune okay, but wasn't real happy about it at low rpms.

    Since it's such a hassle to do a cam swap with the engine in the car, I'm another vote for it not really being worth it. I will probably go bigger soon, but I only installed it last spring, and living in Vermont that means I've only driven it a few months. I'll probably wait a year or so and do ported heads with a larger cam.
    Last edited by Cphelps; 03-07-2012 at 06:52 PM.

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