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2005 NBS Silverado build

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Old 01-22-2017, 10:12 AM
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Default 2005 NBS Silverado build

First off let me give credit where it's due. Kbracing's log design is genius and I based my log design on his. Specs are as follows so far:

Hot side:
Master Power t70 .96 AR
304l stainless steel log(2.5 in sched 40, joined to a mild steel flange with 309l rod)
Crossover: 2.5" 304l ss .065 wall tube(sourced from Amazon.com)
Downpipe: 3" 304 SS .065 tube( not sure about how far I want to run the full exhaust yet)

Waste gate/Bov: VS racing 60mm/50mm

Boost controller: NXS
https://www.amazon.com/gp/product/B008M0HOV8/ref=oh_aui_search_detailpage?ie=UTF8&psc=1 https://www.amazon.com/gp/product/B008M0HOV8/ref=oh_aui_search_detailpage?ie=UTF8&psc=1
works beautifully, I did have to trim the spring to achieve the desired boost pressure.

Flanges: V band on the driver's side crossover and down pipe. I will be making my own t4 and driver's side exhaust flange from 3/8 304 SS plate sourced from a local distributor.

Cold side:

Intercooler: treadstone 1245 with a custom bracket made from a500 .75" tube

Cold pipe: universal 3" aluminum stuff from Amazon.com( I had to modify the plastic headlight housings to plumb it the way I wanted, I still might do it out of 304 SS later on in the build. Im not great at Tig welding aluminum yet.)




Truck didn't respond to anymore timing and I was unwilling to turn the boost up any more. I think the turbo is too small.

Last edited by usafws6; 09-29-2017 at 07:02 PM.
Old 01-22-2017, 10:22 AM
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Mounted on a spare 5.3
#buildwithblue

Mocked up.
I decided that routing the cold pipes under the truck would involve too many bends so I flipped the IC and routed them beside the radiator.
Custom IC bracket




Old 01-29-2017, 10:28 AM
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Made a small amount of progress today. Cut and drilled a t4 flange from 3/8 thick 304l SS. I plan on doing the same thing for the exhaust manifold flange.


Cuts like a knife through butter, I definitely prefer this method compared to plasma or chop saw.



Thank you Swag Off-road, I have debated being a floor mounted band saw but their conversion kit turned my portable Milwaukee into a bench mount.
Old 01-29-2017, 10:29 AM
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Administrator, can you move this thread to the projects section please?
Old 01-29-2017, 11:59 AM
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Made a middle a/c vent delete plate out of textured abs that will house the boost gauge.
Old 01-30-2017, 06:56 AM
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Looks good! Keep us posted!
Old 01-30-2017, 01:31 PM
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Definitely, my work is at a standstill now while my TIG welder is getting serviced. What size DP would you guys use. I feel like 3" is small. However this is only a fun street truck.
Old 02-20-2017, 10:25 AM
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Definitely a steeper learning curve Tig welding aluminum. Pipe is 16 gauge, weld specs as follows, AC, 80 amps, 115hz freq, 1/16 4043 rod. I did a second pass at 85 amps to flatten the weld out.
Old 02-20-2017, 07:19 PM
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Made some progress on the hot side.





how does the location look to you guys? I noticed that the turbo flange will need to be notched to accommodate the oil return line fitting. Is this common? I also have a decision to make regarding a speed density tune or Maf, what would you do? I DD'd a speed density tuned trans am for years and loved it, is driveability different with a turbocharged engine?
Old 02-20-2017, 11:03 PM
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I have a gauge for that
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3" is probably ok, but I would go for 3.5" if you can.

A lot of guys use an elbow off the drain flange (not recommend), but I used a 4-5" 1/2" NPT pipe to go below the flange on mine.

Why were you making your own flange? You know those are dirt cheap off the shelf right? Good work!



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