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Supercharger +/- heads

This is a discussion on Supercharger +/- heads within the Forced Induction forums, part of the LSx Technical Help Section category; Is there any advantage in putting on aftermarket heads on a s/c car? A friend of mine said it doesn't ...

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    Junior Member migueelw's Avatar
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    Supercharger +/- heads

    Is there any advantage in putting on aftermarket heads on a s/c car? A friend of mine said it doesn't make sense because my car is supercharged, just increase the boost. I feel like a better flowing head is still needed.


    What's your opinion???

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    Member side2000's Avatar
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    better flowing heads will increase flow and actually decrease your boost. in other words, (John madden)---you will see a decrease in boost allowing you to turn it back up to where it was in turn making more power.

    your friend is right in a sense---flow aft a turbo/supercharger doesn't matter as much. . .but there becomes a point where you can't turn boost up anymore cuz of detonation/reliability issues.

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    Also makes the SC work less which means that the SC requires less hp from the engine to turn the compressor, which results in more hp to the wheels.

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    Junior Member migueelw's Avatar
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    Quote Originally Posted by ls1camino View Post
    Also makes the SC work less which means that the SC requires less hp from the engine to turn the compressor, which results in more hp to the wheels.

    How does the s/c work less with/without aftermarket heads? I thought they work off of the engine.

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    Heads area an good option. If anything, better flowing and you can also decrease the compression ratio.
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    Quote Originally Posted by migueelw View Post
    How does the s/c work less with/without aftermarket heads? I thought they work off of the engine.
    again i'm gonna sound john maddenish-the superchargers primary purpose is to force air into the combustion chamber. the straighter, the smoother, the "easier" the air gets from the supercharger to the combustion chamber, the less the supercharger has to work to deliver that air. the more restrictive the path, the more boost the supercharger has to/will make in order to deliver that air.

    now: we know the easy path to the combustion chamber makes the supercharger work less to make the same power. AND the motor turns the supercharger---so, since supercharger is easier to turn, the motor is using less power to turn it.

    simply put the more efficient the motor flows in the top end, the more power you can make.

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    Quote Originally Posted by side2000 View Post
    again i'm gonna sound john maddenish-the superchargers primary purpose is to force air into the combustion chamber. the straighter, the smoother, the "easier" the air gets from the supercharger to the combustion chamber, the less the supercharger has to work to deliver that air. the more restrictive the path, the more boost the supercharger has to/will make in order to deliver that air.

    now: we know the easy path to the combustion chamber makes the supercharger work less to make the same power. AND the motor turns the supercharger---so, since supercharger is easier to turn, the motor is using less power to turn it.

    simply put the more efficient the motor flows in the top end, the more power you can make.
    troof

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    Junior Member migueelw's Avatar
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    Quote Originally Posted by side2000 View Post
    again i'm gonna sound john maddenish-the superchargers primary purpose is to force air into the combustion chamber. the straighter, the smoother, the "easier" the air gets from the supercharger to the combustion chamber, the less the supercharger has to work to deliver that air. the more restrictive the path, the more boost the supercharger has to/will make in order to deliver that air.

    now: we know the easy path to the combustion chamber makes the supercharger work less to make the same power. AND the motor turns the supercharger---so, since supercharger is easier to turn, the motor is using less power to turn it.

    simply put the more efficient the motor flows in the top end, the more power you can make.


    Thanks for the explanation, I knew someone could explain it to me.

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    Quote Originally Posted by side2000 View Post
    again i'm gonna sound john maddenish-the superchargers primary purpose is to force air into the combustion chamber. the straighter, the smoother, the "easier" the air gets from the supercharger to the combustion chamber, the less the supercharger has to work to deliver that air. the more restrictive the path, the more boost the supercharger has to/will make in order to deliver that air.

    now: we know the easy path to the combustion chamber makes the supercharger work less to make the same power. AND the motor turns the supercharger---so, since supercharger is easier to turn, the motor is using less power to turn it.

    simply put the more efficient the motor flows in the top end, the more power you can make.
    John Madden (and "John Madden" as played by Frank Caliendo) would be proud of that explanation -- it truly does him justice. You did a great job making a somewhat complex explanation seem really simple to understand.

    I'm just waiting for another one of those "to win consistently at football your team is going to have to score the most points" comments from Big John!

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    haha thanks guys. but we gotta cover one more thing. in order to win races, you just gotta have the faster car.

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    I good flowing set of heads will help!

    Just a couple of weeks ago, I installed a set of Trick Flow 215cc cylinders heads ONLY and I gained 60 rwhp!!

    Before the head swap, my Procharged stock LS1 put down 450 rwhp with an LS6 intake and long tube headers. No cam and stock heads and running only 7# of boost.

    Now I am only making around 5-6# of boost (hard to really tell since she revs so fast!) and the mid range power is up big time! I also gained a miniscule amount of compression. Trick Flow heads were one of the best mods I have done except for the Procharger.

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    2004 HEAD/CAM CTS-V 9t8z28's Avatar
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    BEFORE



    AFTER

    Last edited by 9t8z28; 11-24-2008 at 06:21 PM.

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    the proof is on the paper.

    you plan on gettin a cam? specs?

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    2004 HEAD/CAM CTS-V 9t8z28's Avatar
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    Quote Originally Posted by side2000 View Post
    the proof is on the paper.

    you plan on gettin a cam? specs?
    I was, but I gotta start restoring my big block chevelle so the Camaro is still gonna be my daily driver.

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