LS4 Performance Grand Prix GXP | Monte Carlo SS | Impala SS | LaCrosse Super

my build progress

Old Aug 25, 2013 | 03:23 PM
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Default my build progress

though id keep you guys updated on everything over here. and where im at currently

projected mods for this year:
get full valvetrain upgrade (cam, lifters, springs chain ) mild P&P on the heads
G8 GXP rear diffuser retrofit
Pontiac Aztec bumper support-(aluminum and weighs less)
finish the rear coilovers when i get some time



my current mod list


Enigine
-DT Headers
-Header back 3.0inch Exhaust
-Cherry bombs x3 (resonator and mufflers)
-LS2 Intake manifold stage 2 ported by me w/ LS2 90mm TB
-LS7 Card MAF in 4' housing
-MSD Wires
-NGK TR6IX plugs
-4' FWI
-Innovative LC1 wideband
-Poly filled lower engine mounts
-Custom Poly Trans mount
-Billet Dog bone w/poly bushings by me
-DIY Shift kit
-B&M remote mount trans filter
-HAYDEN RV trans cooler
-0 gauge rewire
-HP tuned by me




Suspension
-ZZP Tubular LCA
-Bilstein coilovers on 350# QA1 springs
-GMPP front sway bar w/poly endlinks

Misc
-relocated battery to trunk
-Custom mesh grilles by me
-custom DRL's by me
-Retrofitted headlights w/4300K bulbs with ZZP HID wire kit
-Smoked L.E.D tails by me and 3rd brake light
-Debadged
-LED interior lighting (white)
-Carbon fiber D.I.C by me
-sprayed dash panels with duplicolor metallic dark
-plastidipped wheels grilles and exhaust tips by me

some current pics





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Old Aug 27, 2013 | 09:22 AM
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looks good.
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Old Sep 2, 2013 | 06:43 PM
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Great looking car I like the white and black color scheme a lot...
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Old Sep 2, 2013 | 10:07 PM
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How much bhp do you have currently and what is your end goal?
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Old Sep 3, 2013 | 02:57 AM
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Originally Posted by Tomkat3012
How much bhp do you have currently and what is your end goal?
Probably 300ish wheel I'm looking to up that and do heads and can soon. My end goal **** who knows I just like to build and wrench and do **** myself. I guess my end goal would be keeping people interested in the ls4 community by building something different.
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Old Sep 3, 2013 | 07:32 AM
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Originally Posted by 91parkave
Probably 300ish wheel I'm looking to up that and do heads and can soon. My end goal **** who knows I just like to build and wrench and do **** myself. I guess my end goal would be keeping people interested in the ls4 community by building something different.
Keep it up for sure! Too many take easy route and don't actually build their cars...
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Old Sep 4, 2013 | 08:35 AM
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what fitting did you use on your intake to connect the pcv valve back up?
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Old Sep 4, 2013 | 09:35 AM
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Originally Posted by blkchevyz
what fitting did you use on your intake to connect the pcv valve back up?
You're talking about the red intake elbow piece thatbruns to the catch cans? Its the stock ls4 hardware just drilled a hole in the coupler and just installed .
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Old Sep 4, 2013 | 09:55 AM
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so that just popped out of the factory intake tube?
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Old Sep 4, 2013 | 10:09 AM
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Originally Posted by blkchevyz
so that just popped out of the factory intake tube?
Yep I used the 90* fitting too just cut the hard plastic line and slipped 3/8 fuel line over it
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Old Oct 6, 2013 | 02:08 AM
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so a brief update on what ive been up too.

of course its all DIY lol i dont order **** cause im to cheap lol.
so i started work with the rear underbody diffuser it only shows up in black and whit but the general idea here..


then moved alon to my custom adjustable rear STB i made.

completed my FWI setup shown here




i then made a custom rear motor mount out of the left over poly i had




changed out my 350#12' springs for 10"450 springs...love it..


and today i ditched the tube fin trans cooler for a police package oil cooler i had laying around---reason being its bar plate more efficent and the cores are way bigger than the old trans cooler i was using, its also mounted in a better position and allows more fluid.


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Old Oct 6, 2013 | 10:37 AM
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Badass build man but there is no way this thing gets any traction lol.
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Old Oct 8, 2013 | 10:55 AM
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whats with the spring change? are those springs specific for the grandprix or a universal type spring?
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Old Oct 8, 2013 | 01:49 PM
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Originally Posted by blkchevyz
whats with the spring change? are those springs specific for the grandprix or a universal type spring?
Universal, the 350lb/in spri gs I felt where too soft for the front so I went up to 450lb/in springs
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