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11-28-2009, 09:24 AM
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Hummer Veteran
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Join Date: Nov 2009
Location: Hambach, Germany
Posts: 78
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LSXRT Intake
I ordered an LSXRT intake from Thunder Racing a few weeks back. I cannot get a response from FAST or them on fuel rails to fit my 2003 H2. Does anyone have any new info on it?
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2003 H2, 408 CI, K1 Forged 4" stroke crank, K1 6.125" forged rods, Wiseco X-Series 0.30 forged pistons, Schneider cam, FAST 102mm LSXRT, precision flow injectors, Comp Pro Magnum rockers, SA Gear DR timing set, ARP main studs, 90mm ETC TB, Airaid MIT, MSD Coils/wires, Dynatech Headers/high flow cats, Magnaflow, Jessie James Black Widows 20x9, Nitto Dune Grapplers 37", Fabtech 6" lift, CK Performance XHD 4l70e and 4.56 Gears
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11-29-2009, 10:43 PM
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Hummer Expert
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Join Date: Sep 2007
Location: Mason, OH
Posts: 779
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Re: LSXRT Intake
Are you doing the L92 heads too? I think you can use your factory fuel rail with the fast intake.
I have been pondering doing this as well.
I was thinking of doing the FAST intake with L92 heads and 42lb marine injectors and a cam. Supposedly this setup puts out just over 500Hp.
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12-11-2009, 10:46 AM
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Hummer Veteran
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Join Date: Nov 2009
Location: Hambach, Germany
Posts: 78
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Re: LSXRT Intake
My FAST LSXRT fuel rails shipped from FAST/CompCams 10 December. From what they tell me, other ones will not work. I will have it on my truck in a few days and then first start up on the new engine. I am using the 317 heads and FAST injectors.
__________________
2003 H2, 408 CI, K1 Forged 4" stroke crank, K1 6.125" forged rods, Wiseco X-Series 0.30 forged pistons, Schneider cam, FAST 102mm LSXRT, precision flow injectors, Comp Pro Magnum rockers, SA Gear DR timing set, ARP main studs, 90mm ETC TB, Airaid MIT, MSD Coils/wires, Dynatech Headers/high flow cats, Magnaflow, Jessie James Black Widows 20x9, Nitto Dune Grapplers 37", Fabtech 6" lift, CK Performance XHD 4l70e and 4.56 Gears
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12-13-2009, 04:33 PM
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Hummer Veteran
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Join Date: Nov 2009
Location: Hambach, Germany
Posts: 78
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Re: LSXRT Intake
The LSXRT will not work with L92 heads, the intake ports are totally different. Will only work with cathedral intake ports.
__________________
2003 H2, 408 CI, K1 Forged 4" stroke crank, K1 6.125" forged rods, Wiseco X-Series 0.30 forged pistons, Schneider cam, FAST 102mm LSXRT, precision flow injectors, Comp Pro Magnum rockers, SA Gear DR timing set, ARP main studs, 90mm ETC TB, Airaid MIT, MSD Coils/wires, Dynatech Headers/high flow cats, Magnaflow, Jessie James Black Widows 20x9, Nitto Dune Grapplers 37", Fabtech 6" lift, CK Performance XHD 4l70e and 4.56 Gears
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