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Discussion Starter #1
I picked up an 06 when they were new and had to sell it due to the gas crisis we had shortly after. It was a 2wd and bone stock. I put a ton of miles on it and took a big loss when I sold it.

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I spent along time in a 1999 Jeep Cherokee Sport that I put just under 300k on as my daily. It had a small lift and was a blast to drive.

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Then in 2017 I got bug for a V8 toy and picked up an 05 CTSV. I threw a bunch of go fast parts at it in hopes it would meet my needs.

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6 months in and I was not happy. It was fast and a cool driver but I realized I wanted a SUV to play with.

I saw a post that a guy had put up on the CTSV forum asking if anyone wanted to trade for a Trailblazer SS. We messaged back and forth for a while but both were skeptical of the quality of each others builds. We finally agreed to meet which took some work since he was in NC and I was in OH. Below was the day we looked each others cars over and made the deal.

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Discussion Starter #2
The drive home was a bit scary as the truck had been wrenched on and I was not sure if it would surprise me with anything on the drive back home. Good news was it drove like a dream and got me back to Ohio.

Pics from the previous owners work

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Discussion Starter #3
The truck had lots of go fast goodies on it. Motor was a fresh rebuild with AI LS3 heads as well as a custom grind on the cam for a LSA swap. My concerns were with the transmission as it looked stock and with 130k on it I knew its days were numbered. I did some basic mods like a stereo and rear springs, adjustable PH bar and end links.

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Discussion Starter #4
I spent the summer cruising it and saving up the coin for the LSA swap. I pulled the trigger on a set of snowflake wheels.

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Discussion Starter #5
I went with a 285/40/22 due to the truck being AWD and wanting to fill the wheel well. Those things are very tight.... I rub the wheel wells when I bottom out and had to roll the front fenders. The spindles had to be ground as well.

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Discussion Starter #6
Then on Christmas eve 2018 at exactly 139k I mashed the gas to pass a slow poke and the 4L70 went from 1st to neutral. I limped it home and started stage 2 of the build. It was at this time I did a Carfax and found I was owner number 9 of this fine SUV.

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Discussion Starter #7
Over the winter the truck saw a lot of upgrades.

Robert Godfrey Stage 5 4L70
2900 FTI stall
Kooks Headers
Spohn rear control arms
New rotors and pads
John Frey did a torsion front diff with the chromoly shaft
I also picked up a set up his front axels

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Discussion Starter #8
More pics of the winter project. Both John and Robert were great to work with as I sent in my old stuff to be rebuilt and upgraded.

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Discussion Starter #9
I spent months chasing down the reason for the truck constantly throwing codes

P0700 P0741 were never ending. I worked with Robert as we ran down the list of possibilities. I picked up HP Tuners so I could data log and reset my codes on the fly. PCM of NC were also a huge help as we tried to figure out my issues. They sent me a spare TCM to rule that out as a possible issue.

It turned out to be #2 header tube being to close to the plug. I had several different wire sets and socks but they all would fail and cause the truck to see a miss fire. This would send the trans into limp mode and prevent the converter lock up. The solution was picking up ceramic boot wires.

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Discussion Starter #10
So today the truck sits in a slumber as winter sets in. I picked up a used TVS2300 that will be going on after I gather up my parts list to complete the upgrade.

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2008 TrailblazerSS
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Nice build log


2008 TBSS Super Charged
 
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Discussion Starter #13
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Picked up some sweet motor mounts for my winter project
 

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Discussion Starter #14
Heat exchanger all mounted

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Discussion Starter #16
Got some work in last week as I started the tear down.
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Discussion Starter #17
It took a lot of hours and sourcing parts to make everything fit. A big shout out to PCM of NC for the support as I needed plenty.

Had to swap over to an 07 pump to clear the pulley set up.

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Discussion Starter #18
Getting close as I still have a list of things to tackle. The rear fuel cross over line was leaking so I spent time making up a new line for it. I had to fab up the MAP sensor from a Cobalt SS so it would read boost. I am still not happy with my initial install and plan to change it out before I start it up. Having a hell of a time getting the heat exchanger pump to prime....

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07 tbss awd
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Sometimes for the pump to prime you have to pull the hose off and fill it directly. Then reattach and start the pump, they vapor lock pretty easy.

Make sure you weld the water pump pulley onto the shaft. Even then, I broke two welded pumps before switching to a PRW pump.

I used a zl1 map sensor and have had great luck.

Build looks great, don’t worry about tidying up the packaging until you get it running the way you want.
 

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Discussion Starter #20
UPDATE !!!!! Even with the pandemic upon us I was able to sort through the issues and was able to take the SS for a spin today. Just a shakedown run as I don't have my AF and Boost gauges in yet. Minor set back with the Cobalt SS MAP as it was not pinned the same as the stock MAP even though they were marked ABC for the 3 wires. Once that was fixed she sounded strong. I will try to link a few videos.


SS Start up
 
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