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Hey I have a 06 Chevy Colorado 2.8 L four-cylinder. I have every upgrade possible mod done to make it as fast as possible but I still need more power!! I have no experience with turbos at all but I am very mechanically inclined and a good fabricator as well. If
Anyone has Info/knowledge of what I have to do to make my truck a turbo truck it would be greatly appreciated. Also what parts would be needed to complete the project. I want boost!




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fabricate turbo manifold, get turbo, bigger injectors, lots of aluminum pipe, a intercooler, bov, wastegate, exhaust pipe for downpipe, oil lines. Done
 

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If you follow through and start the project, you should do a write up, use this thread or make another, I've been wanting to boost mine but I would not know where to start at all. Something to follow step by step would be awesome. :thumbup:
 

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If you follow through and start the project, you should do a write up, use this thread or make another, I've been wanting to boost mine but I would not know where to start at all. Something to follow step by step would be awesome. :thumbup:
There is a few i5 threads in the boosted section of this forum...same thing except 4 cylinders have 1 less cylinder...

One guy has already boosted the i4 btw
 

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Here's a copy and paste from my build thread. I can sell you a flange for $50 shipped to get you started.

Here are the current specs of my build and where I got the parts from:

2007 Chevy Colorado 2wd Base Model
2.9L (LLV), 5 speed manual (MA5)
92 octane
8psi boost
5 million hp (est)

Turbo: Turbonetics T04E "50" 54mm compressor, 57mm F1 .63 a/r turbine, bb & wc
Source: used on eBay

Manifold: custom 1.75" primaries, equal length, 4-into-1
Source: Summit (tubing) and me (flange and fab)

Wastegate: Turbosmart Comp 40
Source: eBay

Wastegate plumbing: 1.75" tube and flex section
Source: Summit

BOV: Bosch bypass valve
Source: used on eBay

BOV connection: 2 1/2" to 1" silicon "tee"
Source: eBay

Intercooler: 2 1/2" same side in/out air-to-air
Source: eBay

Boost Plumbing: Aluminum pipe & silicon connectors
Source: cxracing.com

Vacuum tubing: 7/32 rubber stuff
Source: local parts store

Oil Feed line: Turbonetics -3 x36" braided stainless line
Source: Summit

Oil feed to turbo fitting: Turbonetics fitting with screen
Source: Summit

Oil Drain: 5/8 Hose
Source: local parts store

Oil fittings: 1/8" npt to -3 an (feed); 1/2" npt to 5/8" hose barb (return)
Source: Summit

Oil feed adapter fitting: 1/8" npt to whatever thread is in the block above the oil filter
Source: Limeswap

Heat sleeves for rubber lines: Summit brand 1" and 1.5" ID
Source: Summit

Injectors: Siemens Deka 60 lb/hr
Source: Limeswap

Injector Harness: adapts these injectors to factory harness (07+ i think)
Source: Limeswap

Tune: Mail order (loaner pcm)
Source: Limeswap

MAF housing: 3" OD (2 7/8" ID) aluminum tube
Source: cxracing.com

MAF flange: aluminum weld-on (currently bolted on)
Source: Limeswap

Meth Injection: AEM universal progressive kit #30-3000
Source: Summit

Air Filter: Factory paper filter
Source: came with truck

Exhaust: 3" downpipe and system, no cats, 3" Walker Quiet-Flow SS
Source: eBay (muffler), Summit (tubing)
 

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Discussion Starter #9
Here's a copy and paste from my build thread. I can sell you a flange for $50 shipped to get you started.



Here are the current specs of my build and where I got the parts from:



2007 Chevy Colorado 2wd Base Model

2.9L (LLV), 5 speed manual (MA5)

92 octane

8psi boost

5 million hp (est)



Turbo: Turbonetics T04E "50" 54mm compressor, 57mm F1 .63 a/r turbine, bb & wc

Source: used on eBay



Manifold: custom 1.75" primaries, equal length, 4-into-1

Source: Summit (tubing) and me (flange and fab)



Wastegate: Turbosmart Comp 40

Source: eBay



Wastegate plumbing: 1.75" tube and flex section

Source: Summit



BOV: Bosch bypass valve

Source: used on eBay



BOV connection: 2 1/2" to 1" silicon "tee"

Source: eBay



Intercooler: 2 1/2" same side in/out air-to-air

Source: eBay



Boost Plumbing: Aluminum pipe & silicon connectors

Source: cxracing.com



Vacuum tubing: 7/32 rubber stuff

Source: local parts store



Oil Feed line: Turbonetics -3 x36" braided stainless line

Source: Summit



Oil feed to turbo fitting: Turbonetics fitting with screen

Source: Summit



Oil Drain: 5/8 Hose

Source: local parts store



Oil fittings: 1/8" npt to -3 an (feed); 1/2" npt to 5/8" hose barb (return)

Source: Summit



Oil feed adapter fitting: 1/8" npt to whatever thread is in the block above the oil filter

Source: Limeswap



Heat sleeves for rubber lines: Summit brand 1" and 1.5" ID

Source: Summit



Injectors: Siemens Deka 60 lb/hr

Source: Limeswap



Injector Harness: adapts these injectors to factory harness (07+ i think)

Source: Limeswap



Tune: Mail order (loaner pcm)

Source: Limeswap



MAF housing: 3" OD (2 7/8" ID) aluminum tube

Source: cxracing.com



MAF flange: aluminum weld-on (currently bolted on)

Source: Limeswap



Meth Injection: AEM universal progressive kit #30-3000

Source: Summit



Air Filter: Factory paper filter

Source: came with truck



Exhaust: 3" downpipe and system, no cats, 3" Walker Quiet-Flow SS

Source: eBay (muffler), Summit (tubing)

Ok at least the flange is a start


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I wouldn't mind making another manifold or two. Whatever I can do to help my 4cyl brothers!
 

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The manifold would cost $300 to build. It breaks down like this:

U-bends for runners: $15 ea - 7 needed
Head flange: $40
Turbo flange: $30
Flex pipe: $30 ea - 2 needed
Outlet flange: $10
Turndown: $20
Cutoff wheels, welding supplies, etc: $35
Labor: free

This gets you an equal length manifold and about 10" of downpipe with the external wastegate provisions plumbed in. I believe the longer runners are less prone to cracking than the log-style because they are free to expand and contract as needed.

I would need your turbine housing and wastegate (with flanges) to build around.

If your turbo was internally wastegated, or if you wanted to plumb the wastegate yourself, that would knock $75 off the price (wouldn't need flex pipes and 1 u-bend).
 

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My 54mm seems to work well, so I'd say 50-58mm inducer depending on the turbo. That puts you right around here:

Turbonetics T04E
Borg Warner S200SX
Holset HX35, HY35, or HE341
Garrett GT28 - GT32
 
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