Thread: machined lim or not

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  1. #1 machined lim or not 
    spina74
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    Default 01-25-2011
    I'm getting ready to install a ported m90 and I have a spare lim. The car more than likely will not be intercooled. I am not sure if I should open up the lim or not. If so does anyone have a write up on how to because I can't find one
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  2. #2 Re: machined lim or not 
    Explicit_Spade
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    Default 01-25-2011
    Gen 3 yes, Gen V no.
    Quote Originally Posted by W-Body Store
    Remember, GM engineers didn't take into account your need for speed.
    Daily Driver: 06 Grand Prix GT / 9.4:1 CR / IS3 Heads / Ported Gen V / ZZP Headers / HPT Pro / Pulleys: 4.25, 3.8, 3.5, 3.4, 3.2, 3.0, 2.9, 2.7
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  3. #3 Re: machined lim or not 
    matt5112
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    Default 01-25-2011
    You could, but its kinda a waste of effort.

    Unless the H bridge has already been removed.
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  4. #4 Re: machined lim or not 
    machinegunsquid
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    Default 01-25-2011
    Im in the same boat..already got the H bar removed, and the inlet is also ported (Gen 3) I want to just open up inlet on the LIM...

    Looked around on the forums, havent seen any write-ups, or templates...so any pointers would be great.

    "**** bills. You can live in your car but you can't race your house" -dsmuts
    Want her to stop when she's not looking karate chop her in her crotch that should quiet her for a bit or at the very least put a smile on your face -REDCOMPG
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  5. #5 Re: machined lim or not 
    matt5112
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    Default 01-25-2011
    take your stock gasket and cut out the inside of the centre red/orange line and then drop the gasket on the LIM then take a sharpie to it so you know what to cut.

    remove gasket and cut.

    Thats all I did when i opened up mine for the intercooler.

    Pictures shortly.
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  6. #6 Re: machined lim or not 
    machinegunsquid
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    Default 01-25-2011
    Alright, thanks....
    didnt even think of that...even tho that's the easiest way....

    Pics would be great too, thanks matt

    "**** bills. You can live in your car but you can't race your house" -dsmuts
    Want her to stop when she's not looking karate chop her in her crotch that should quiet her for a bit or at the very least put a smile on your face -REDCOMPG
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  7. #7 Re: machined lim or not 
    matt5112
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    Default 01-25-2011
    As promised:





    I'm running an intercooler that requires that particular gasket hence the extra hole for the rear head PCV.
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  8. #8 Re: machined lim or not 
    machinegunsquid
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    Default 01-25-2011
    Ty sir, give me a little project to do once im back in state.

    "**** bills. You can live in your car but you can't race your house" -dsmuts
    Want her to stop when she's not looking karate chop her in her crotch that should quiet her for a bit or at the very least put a smile on your face -REDCOMPG
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  9. #9 Re: machined lim or not 
    spina74
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    Default 01-25-2011
    I keep reading about the hbar what exactly is that
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  10. #10 Re: machined lim or not 
    machinegunsquid
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    Default 01-25-2011
    Sorry for the crappy picture links, but I dont have any pics of mine before/after..

    Theres a bar going across the Outlet of the supercharger, limiting the size of the outlet.
    http://t0.gstatic.com/images?q=tbn:A...XXn0Bn0e4j&t=1
    see the bar going across the middle of the supercharger...that the H bar.

    Now, when you port the outlet, you also typically remove the H bar...here it is without the H bar.
    http://www.zzperformance.com/products_img/162_1.jpg

    "**** bills. You can live in your car but you can't race your house" -dsmuts
    Want her to stop when she's not looking karate chop her in her crotch that should quiet her for a bit or at the very least put a smile on your face -REDCOMPG
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  11. #11 Re: machined lim or not 
    blueguy
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    Default 01-25-2011
    You only remove the H Bar when you intercool your car...otherwise it doesn't matter.

    Plus...a ported LIM does nothing unless like I said...you have an IC or ported heads to match the ported runners.
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