Thread: LIM Job

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  1. #1 LIM Job 
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    I plan on doing a LIM job soon and wanted to know while I have the engine halfway torn into, what are some recommended performance mods I should consider?
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  2. #2 Re: LIM Job 
    GTX Level Member SnowTh1ef's Avatar
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    Rockers/cam, headers, etc
    04 GTP -HAI, 1.9 rockers.
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  3. #3 Re: LIM Job 
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    Yea I was thinking rockers. Anything really beneficial to cutting the bosses on the supercharger?
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  4. #4 Re: LIM Job 
    GTX Level Member SnowTh1ef's Avatar
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    The bosses? You mean porting it?
    04 GTP -HAI, 1.9 rockers.
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  5. #5 Re: LIM Job 
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    Yes
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  6. #6 Re: LIM Job 
    GTX Level Member SnowTh1ef's Avatar
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    Yes, its very beneficial.
    04 GTP -HAI, 1.9 rockers.
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  7. #7 Re: LIM Job 
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    Don't you trim where those 2 square pieces are located
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  8. #8 Re: LIM Job 
    Schooner Tuner ADrugDealer's Avatar
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    Go gen V....dont bother porting...,port the lim, change to aluminum lim gaskets, go cam or rockers, headers, intake, 180* t stat, full synth oil, coolent flush, intercooler, smaller sc pulley, bigger injectors, e85... go crazy..
    2008 G8 GT - IOM - LSA Blower, Intercooled, Ported Heads, Cam, Flex Fuel Conversion, Tuned - 550whp - 11.5 @ 124 -
    2000 Regal - Winter Beater
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  9. #9 Re: LIM Job 
    GTX Level Member SnowTh1ef's Avatar
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    Quote Originally Posted by adecker View Post
    coolent

    Really aaron? Tell me again how smart you are :P
    04 GTP -HAI, 1.9 rockers.
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  10. #10 Re: LIM Job 
    GT Level Member SilverBulletWI's Avatar
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    Not recommended that you port the LIM unless you have ported heads. Here's a write up... http://www.grandprixforums.net/showthread.php?t=46931
    How to Mod a LIM
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  11. #11 Re: LIM Job 
    GTX Level Member SnowTh1ef's Avatar
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    Aaron was reffering to opening up the sc inlet if he swaps to a gen v. and just going to assume you mean heads, not headers, because that wouldn't make any sense
    04 GTP -HAI, 1.9 rockers.
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  12. #12 Re: LIM Job 
    GT Level Member SilverBulletWI's Avatar
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    Quote Originally Posted by SnowTh1ef View Post
    Aaron was reffering to opening up the sc inlet if he swaps to a gen v. and just going to assume you mean heads, not headers, because that wouldn't make any sense
    Made the spelling correction, thank you. And I encourage porting the SC, did it myself. Just saying don't do the LIM like someone else said to do bc if you don't have ported heads, it can cause turbulence in the outbound air.
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  13. #13 Re: LIM Job 
    GTX Level Member SnowTh1ef's Avatar
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    Right, but he wasn't talking about porting the runners which cause issues with unported heads.

    He was saying IF he wants to put a gen v on, the supercharger inlet on the lim would need to be opened up a bit to match the gen v outlet.
    04 GTP -HAI, 1.9 rockers.
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  14. #14 Re: LIM Job 
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    Quote Originally Posted by SnowTh1ef View Post
    Right, but he wasn't talking about porting the runners which cause issues with unported heads.

    He was saying IF he wants to put a gen v on, the supercharger inlet on the lim would need to be opened up a bit to match the gen v outlet.
    Got it. That Aaron guy just generally said "port the lim" so that's open to interpretation I guess. Here is another good thread about upgrading to gen v...useful info for those checking the thread... http://www.grandprixforums.net/threa...en-five-gen-5)
    Last edited by SilverBulletWI; 10-09-2014 at 01:34 PM.
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  15. #15 Re: LIM Job 
    GTX Level Member SnowTh1ef's Avatar
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    I know, but I know him, and I know where he is coming from on what he was saying lol.
    04 GTP -HAI, 1.9 rockers.
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  16. #16 Re: LIM Job 
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    Yea I think I save a thread to my bookmarks some where on porting the supercharger. Switching to genV is nothing something I'd want to do at this time.
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  17. #17 Re: LIM Job 
    GXP Level Member coolone's Avatar
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    Start with headers and you're on you way... Porting the SC AND TB provide a nice crisp throttle response and just a little more and smoother airflow... Certainly beneficial! Along with 1.9 rockers makes a nice and easy mod/upgrade for a few HP more! Open up the Catback and you'll like it even more, soon you'll want a cam and look to unload the mods you already made, adding heads and cam, tranny upgrades then you'll want the moon, say E85, IC or Turbo even! It's a sickness!!!

    so anyways, here's the moral of the story...

    do YOUR own research, the forums have plenty of info on this platform, so its easy to chose, budget, HP, etc., that you want to chase. But do your research, make a plan, put your stuff together and go for it. There's no right or wrong as to what is best, because you need to know what you want out of your build and build to achieve that goal.

    P.S., I have ported SC & TB, Headers and 1.9's, 3" Catback and love it!
    Overkill BBC Cam, YT 1.8 RR's, Rhodes Lifters, STGII Heads, GenV, Pacesetters, 3" Exh to Tips, TEP Trans. N*, ID 75# injectors/E85 coming soon
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  18. #18 Re: LIM Job 
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    I already have a 3" do but don't know if I'm really going to keep it because its against the firewall and every time I reverse its like the motor move pushing down on the dp which is causing it to sound like its leaking between the rear exhaust manifold and dp.
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  19. #19 Re: LIM Job 
    GrandPrix Junkie SgtMarshal's Avatar
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    switching to a gen v is more work and not worth the money. just port your gen 3 and smooth out the inside of your lower intake manifold. you could also gasket match the runners.
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  20. #20 Re: LIM Job 
    GTX Level Member nos4blood70's Avatar
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    Apples to oranges maybe, but porting the LIM on my L36 made quite a noticeable difference.
    -Carl
    "Penelope" - 145k Miles 2003 Bonneville SLE


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