Thread: First drive with Ported Ls1 intake and LS2 TB

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  1. #1 First drive with Ported Ls1 intake and LS2 TB 
    GXP Level Member 91parkave's Avatar
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    So started the car up today for the first time with the new ported LS1 intake and 90mm TB combo, must say throttle is way more touchy than before nowhere near as linear as the LS4TB combo was, drove it to wal mart an back just to see if everythingwas working fine i can barley go above 20% throttle without dumping fuel, which is as expected especially with the LS6 injectors.




    I did run into some issues after the first start which boiled down the throttle blade getting stuck at full close which then threw the car into a reduced power setting even after clearing codes i was still perplexed took everything off double checked connections etc.... well i guess with the LS4 programming it slams the TB blade all the way before coming back open when you shuut the car down this was causing the blade to get stuck in the weird recesses of the TB. after cursing at the car for half the day i found that the blade was actually making contact with the bore it self so i HAND sanded those areas and repolished the surface so it would never stick again




    As for the intake swap that was good except the alternator bracket i ended up chopping on the car, never took it off just covered the cylinder heads and went to work. worked out just fine as for the MAP i located it in the rear of the manifold and just peeled the wiring back for it out of the factory loom. no need to buy some harness. Also the TB adapter needed some grinding on right edge to avoid hitting the heater hose lines. ALSO i would highly recomend re taping your Factory loom before taking off the intake manifold there so many pices of factory loom that cracked and fell everywhere when i was trying to take off the manifold it wasnt even funny. save youreself some time and prevent all those plastic pieces from getting into the intake. otherwise once i start getting my VE and MAF where they need to be ill give some more final results on the swap Thanks to all that could help and have given me great advice over the almost year now of having the GXP.


    Here are some pics BTW a 8mm wrench ratchet will save you some valuable time taking the intake off

    [URL=http://s173.photobucket.com/user/91parkave/media/IMG_20130504_113802_565_zps064efa55.jpg.html]


    The stupid ALternator bracket







    [URL=http://s173.photobucket.com/user/91parkave/media/IMG_20130504_113815_895_zpsfc008c89.jpg.html]




    Last edited by 91parkave; 05-05-2013 at 07:02 PM.
    06 GXP | 222/227 cam/cartuning turbo kit on 8psi/meth/e85 coilovers/ still on stock trans at 130k
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  2. #2 Re: First drive with Ported Ls1 intake and LS2 TB 
    I live here. DirtDog's Avatar
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    looks good man. did you get any videos of it yet
    http://www.grandprixforums.net/my-06-gp-gxp-72403.html
    OBX headers, TEP tranny cooler, ls1 IM fuel rails and injectors, ls2 TB, ls7 MAF, full custom exhaust, Quad retro headlights, full out front and rear suspension work, tuned by HPT by me 8====>

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  3. #3 Re: First drive with Ported Ls1 intake and LS2 TB 
    GXP Level Member 91parkave's Avatar
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    Just startup no driving though cause I'm still getting the car dialed in
    06 GXP | 222/227 cam/cartuning turbo kit on 8psi/meth/e85 coilovers/ still on stock trans at 130k
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  4. #4 Re: First drive with Ported Ls1 intake and LS2 TB 
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    I would like to know to, how much fuel is it eating now?
    It is just a FAMILY CAR
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