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Pontiac G8 2008-09 & Chevrolet SS 2014+ LSX based RWD 4-door sedans

GXP Twin Turbo Project coming along...

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Old 06-21-2011, 06:34 AM   #1
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Default GXP Twin Turbo Project coming along...

Hey guys,

I've been at work on this car for a few weeks now. We built headers and exhaust for this car right off the showroom floor for the customer, BEFORE the title was signed over. The customer has enjoyed the car for two years and wanted to take the next step. He jumped a mile.

My primary build goals throughout the process:

-No cutting or permanent modifications of the chassis.
-Build as an efficient setup as possible while adhering to the first goal.

Specs:

58/62mm Precision Billet Vband turbos. Went with B covers in order to fit between the engine and frame "rails";
TiAL Q BOV;
TiAL MVS wastegates;
LoveFab Turbo Manifolds - places the turbos high enough for a gravity drain back into the pan;
LoveFab Twin-core Water to Air Intercooler. Only modification to the car is the upper radiator hose.
62lb injectors
EFILIVE
Hobbs switch, inline pump.

I am finished with fabrication and will begin the full installation today.

Pictures of some of the process:

Bulky stock motor mounts won't do:

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Ah...clearance...

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Drivers side manifold, turbo, WG, DP/DT combo. Yep, its tight!

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Early mockup stages:

Click the image to open in full size.

Dual-Core WAIC:

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Charge piping built:

Click the image to open in full size.

Air filter tubing:

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Undershot:

Click the image to open in full size.

I will update as the car comes together. Tuning before the weekend.

Last edited by Tinker219; 06-21-2011 at 07:09 AM..
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Old 06-21-2011, 10:53 AM   #2
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That is ******* nice. No joke.
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Old 06-21-2011, 12:58 PM   #3
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Quote:
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That is ******* nice. No joke.
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Old 06-21-2011, 04:52 PM   #4
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those filters are tiny!!
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Old 06-21-2011, 10:58 PM   #5
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Very nice! Thats going to be a blast to drive.
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Old 06-21-2011, 11:34 PM   #6
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Pretty cool!
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Old 06-22-2011, 09:05 AM   #7
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Nice work! What kind of power numbers are you aiming for with the setup?
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Old 06-23-2011, 07:03 AM   #8
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Thanks guys!

We aren't going for the moon here, maybe 550-600WHP. I think this can be reached at just 5-7psi, though I'll know for sure.

The customer doesn't want issues with engine or drivetrain so I figure this is a good way to start.

If we crank up the boost, larger filters are an easy modification. For now, they will flow plenty of air for the power we are shooting for.
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Old 06-23-2011, 09:17 AM   #9
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Wow that's gonna be one seriously sick ride. The owner obviously has a healthy disposable income.
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Old 06-23-2011, 10:06 AM   #10
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Looks good! Bet it will be fun when completed!
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Old 06-23-2011, 10:19 AM   #11
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Here's a quick snapshot of the setup mocked up off of the car:

Click the image to open in full size.
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Old 06-29-2011, 02:08 PM   #12
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VERY Nicely done!
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Old 07-02-2011, 07:41 AM   #13
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Fuel system complete. Boost controller and wideband wiring almost complete.

Click the image to open in full size.

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I will be installing heat shields on the turbo manifolds this morning before the Dyno this evening.
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Old 07-02-2011, 09:50 AM   #14
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very nice
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Old 07-02-2011, 11:49 AM   #15
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That is insane. That thing is going to be a beast!! Can't wait to see the results!
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Old 07-03-2011, 09:51 AM   #16
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looks efficient for sure
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Old 07-03-2011, 08:03 PM   #17
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That intercooler is super cool looking. I really like the way you guys have everything put together.
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Old 07-04-2011, 09:00 PM   #18
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Damn... Do I even want to know what a setup like that cost?
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Old 07-07-2011, 08:59 PM   #19
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Damn... Do I even want to know what a setup like that cost?
nope.
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Old 07-07-2011, 09:00 PM   #20
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Quote:
Originally Posted by Tinker219 View Post
Fuel system complete. Boost controller and wideband wiring almost complete.

I will be installing heat shields on the turbo manifolds this morning before the Dyno this evening.
"This evening" was 5 days ago. What's the word?
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Old 07-07-2011, 09:00 PM
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