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Old 01-19-2013, 11:04 AM
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bealljk
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Default greddy twin build and beyond - 35vqde blog

I found a used greddy 18g twin turbo kit off the trusty internet a few months back and decided to pull the trigger…I think I got an amazing deal for the twins and the intercooler setup - everything but the emanage and the injectors…which I wouldnt use anyway bc I am running the haltech and deatschwerk 600s.

The catch to this purchase is that one turbo leaks and has very minor shaft play…so both turbos will need rebuilt…thinking of doing the 20g swap…additionally, I will replace all the hardware before the summer.

taking this really slow (I'm still nuts deep in my weight reduction) - I don't have a ton of cash to throw at this and I need to upgrade a handful of items along the way. Which I will pickup and hopefully have everything I need by summer.

I am going to modify the bumper and hood to allow maximum airflow - my main concern (after the turbos) is to dissipate heat. Large openings for the intercooler, radiator, oil cooler and side openings to move air up to the turbos and out of the hood.

Here's where I'm at now:

twin turbo kit
C&R radiator - a used(although I dont think it saw track time) nascar stock (30"x18"x4")
replica V2 front bumper
heat wrap

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What I need:
C&R radiator/oil cooler combo
secondary oil cooler
optional second hood
hose line / fittings
more heat wrap
turbo sheilds
1 greddy BOV

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Old 01-19-2013, 03:35 PM
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350VRz
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For the rebuild I recommend Blouch turbo. They did a very nice job on the turbo 996 billet wheel upgrade.
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Old 01-19-2013, 05:15 PM
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bealljk
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Thanks for the reference…they have a great website…

did a bit on the front bumper

wrapped the pipes and the x pipe
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Old 01-19-2013, 05:20 PM
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sradenton
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Nice BUILD!!!! Keep us posted..
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Old 01-27-2013, 04:43 PM
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bealljk
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More cuts on the bumper…getting closer to final shape.


got my latest shipment of heat wrap on friday and finished the exhaust wrap.
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Old 01-27-2013, 05:53 PM
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350z006
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Nice work...just wondering about the structural integrity of that bumper...
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Old 01-27-2013, 06:44 PM
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Nismo350z#0310
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The bumper fabrication is pretty kool idea in showing intercooler piping. It would be interesting to know the aerodynamic characteristic effects though.
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Old 01-27-2013, 07:20 PM
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J rad
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Oo this is going to be fun!
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Old 01-27-2013, 07:52 PM
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bealljk
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Originally Posted by 350z006 View Post
Nice work...just wondering about the structural integrity of that bumper...
Yea - it's pretty flimsy just below the headlights. I don't have a solid plan right now but I may make a aluminum plate re-inforcement. Either rivet it or epoxy it in place…I've got some time to figure that out.

Originally Posted by Nismo350z#0310 View Post
The bumper fabrication is pretty kool idea in showing intercooler piping. It would be interesting to know the aerodynamic characteristic effects though.
My overall intent is to maximize air flow through the ic/radiator/oil coolers, up and out through the hood(which I will also hack up). But showing the duct-work and the radiators are a bonus!

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Old 02-16-2013, 11:17 AM
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spent my free time last few weeks getting my engine's front end off and getting the headers off…

The headers were easier to get off than I initially thought…the key was to remove the engine mounts and support the engine with the floor jack.

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I need a little lead time to have my turbos rebuilt so I am going to start fabbing up the radiator/oil cooler...
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Old 02-16-2013, 04:29 PM
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had a little time to play around in the garage this afternoon…

the radiator propped up
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radiator & intercooler
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not sure how I feel about the bumper...

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Old 02-16-2013, 10:34 PM
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J rad
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Not the biggest fan of the bumper :/.
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Old 02-17-2013, 07:16 AM
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Are you planning on building air channeling ducts? Air will travel along the path of least resistance unless you force it in a direction. Having bigger holes in itself will increase air volume but will not necessarily provide better cooling.

I did that on my car which has intercooler, 2x oil coolers, condenser, and radiator stacked and noticed a huge improvement in water temps and oil temps.

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Old 02-17-2013, 09:10 AM
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^+1. I think you've gotten a bit too concerned about overheating at the expense of aerodynamics and in the process you've lost cooling efficiency also. Air is just going to go around your IC.
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Old 02-17-2013, 09:18 AM
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Combined with the fact that it looks like ***.
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Old 02-17-2013, 10:51 AM
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thanks for the input…I have mixed feelings about the bumper aswell - I bought the bumper for $30, so if it ***** the bed…not a huge loss. It's going to take a some money to get primed and painted as well.

@rcdash & suprasam - as far as air flow goes - I can see what youre saying some air will bypass the IC/radiator - which isnt the worst thing in the world(IMO) bc as it passes (on the sides & over top) it's flowing to the sides & top of the engine…I'm not sure if I posted this above but I intend to find a OEM replacement hood and add cut-outs to allow air to flow out of the engine-bay…

I'm not against creating fiberglass ducts to direct air, I've thrown the idea around with a buddy who wants to create something similar on his car (volvo s60r)…
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Old 02-17-2013, 01:20 PM
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Originally Posted by rcdash View Post
^+1. I think you've gotten a bit too concerned about overheating at the expense of aerodynamics and in the process you've lost cooling efficiency also. Air is just going to go around your IC.
+1

With an aftermarket radiator, oil cooler, t-stat, etc, overheating isn't going to be a big issue. I'd invest in meth if you we're concerned, not to raise boost, but to lower intake temps.
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Old 02-17-2013, 01:42 PM
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bealljk
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Originally Posted by Ruthless18x View Post
I'd invest in meth if you we're concerned, not to raise boost, but to lower intake temps.
Its on my radar, will look into it a little further down the road once things progress a bit...
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Old 02-17-2013, 03:20 PM
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Word. Might also be worth looking into the pathfinder coolant mod and a shroud with high output fans.
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Old 02-25-2013, 05:32 AM
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James, you definitely don't need that large opening on the bumper. Think about the IC air flow capacity, it's approximately 50% of the IC area. Also, you must force air to go through IC core.

From the great old book "Maximum boost" by C. Bell:
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