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What do you guys think???

This is a discussion on What do you guys think??? within the Forced Induction forums, part of the LSx Technical Help Section category; I have a stock Ls1 engine with a s/c. Are there any benefits of increasing the displacement of motor verses ...

  1. #1
    Junior Member migueelw's Avatar
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    What do you guys think???

    I have a stock Ls1 engine with a s/c. Are there any benefits of increasing the displacement of motor verses leaving it stock. I want to increase boost pressure and I was thinking that if I increase the displacement that would mean I couldn't run high boost pressures, oppose to leaving the displacement the same and be able to run a lot more more boost.

    The motor will have a forged bottom end either way.
    Last edited by migueelw; 09-26-2008 at 10:51 AM.

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    Rodzilla Tha Cavity Filla zero_proto's Avatar
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    more displacement is better, always. More displacement does not mean you can run less boost. It depends on how much power you are looking for. Stock cubic inches is fine, but if you want a little more oomph on the lower end, then more cubes will be needed. What kind of s/c are you running, i figure it's a centri, if so go for more cubes.

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    NASCAR Go Fast, Turn Left ntimid8r's Avatar
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    You always want more boost. Going bigger cubes means you'll lose boost with your existing s/c and pulley setup. So depending on what pullies you have or what head unit you have....you'll need to step it up. You can make a ton of power on stock cubes. A forged motor can easily handle 15lbs boost and more. So basically boost is what makes power and going bigger cubes gives you more boost capability.....as long as you increase boost to keep up with the cubes. Hope all that makes sense.

    If you can afford to go bigger, do it.

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    Rodzilla Tha Cavity Filla zero_proto's Avatar
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    Quote Originally Posted by ntimid8r View Post
    You always want more boost. Going bigger cubes means you'll lose boost with your existing s/c and pulley setup. So depending on what pullies you have or what head unit you have....you'll need to step it up. You can make a ton of power on stock cubes. A forged motor can easily handle 15lbs boost and more. So basically boost is what makes power and going bigger cubes gives you more boost capability.....as long as you increase boost to keep up with the cubes. Hope all that makes sense.

    If you can afford to go bigger, do it.
    ooops, forgot about that........

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    Junior Member migueelw's Avatar
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    Quote Originally Posted by zero_proto View Post
    more displacement is better, always. More displacement does not mean you can run less boost. It depends on how much power you are looking for. Stock cubic inches is fine, but if you want a little more oomph on the lower end, then more cubes will be needed. What kind of s/c are you running, i figure it's a centri, if so go for more cubes.
    I'm running the ATI Procharger

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    Junior Member migueelw's Avatar
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    Quote Originally Posted by ntimid8r View Post
    You always want more boost. Going bigger cubes means you'll lose boost with your existing s/c and pulley setup. So depending on what pullies you have or what head unit you have....you'll need to step it up. You can make a ton of power on stock cubes. A forged motor can easily handle 15lbs boost and more. So basically boost is what makes power and going bigger cubes gives you more boost capability.....as long as you increase boost to keep up with the cubes. Hope all that makes sense.

    If you can afford to go bigger, do it.
    Thanks that give me more insight on what options I have. What are some good manufactures of forged parts?

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    a larger engine will let you make the same power without working the engine as hard as a smaller engine and at a lower boost level.

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