4200 (TT?) 6L80 4WD Trailblazer

4200 (TT?) 6L80 4WD Trailblazer

Postby TBMSport » Tue Apr 21, 2015 4:53 pm

Well, Trailblazer RS 1.0 (5.3L 4WD 6L80) was such a smashing success (until the DoD/AFM failed) that I decided to BAM it up notch and show how you can indeed run a 6L80/90 behind any engine...V or otherwise.

After realizing that high output and twin turbo I4/I6 cylinders are the future, I decided to revisit the past and kick it up a notch. BAM! http://www.motortrend.com/future/concep ... ewall.html

I was looking for a Saab 9-7X, but came across an alternative I couldn't pass up. So, I'm take one unsuspecting 2008 4200 Vortec 4.2L I6 4WD Trailblazer with a blown engine. Perform body-off frame engine swap:
IMG_0421.JPG (386.72 KiB) Viewed 1659 times

+ a 6L80 transmission lying around. Mix liberally with a handful of custom TBM parts, 3.73 gears, and custom EFILive tuning tricks to unlock the torque management restrictions.

Contemplate making necessary high performance parts toward twin scroll twin turbo build (aka limited slip front diff, high flow oil pump, Intake/headers, etc.)
4200 dual headers.jpg
4200 dual headers.jpg (216.59 KiB) Viewed 1659 times

LL8_TT.jpg (81.24 KiB) Viewed 1659 times

Garnish with nice 20's, a TBSS rear bumper with high flow exhaust and our custom valance for twin tips. Adjust tuning until mid-to-low 13's are accomplished and then go TBSS, GCSRT8, and maybe even X5 and Cayenne hunting while enjoying 25+ MPG on regular octane gas.

Stay tuned! :lol:
Posts: 2
Joined: Sat Apr 18, 2015 11:50 am

Re: 4200 (TT?) 6L80 4WD Trailblazer

Postby Schmac » Thu Mar 01, 2018 9:13 pm

Any updates to this project? Would really like to see 6L80e swapped or 4L80e.
Posts: 42
Joined: Mon Aug 13, 2012 9:18 am

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