03 Trailblazer Build.

[Shorty81]

The other day i took the instrument panel apart, as nothing was functional on it, did some inspection to find all the solders were ok, so i deduced the stepper motors were probably bad.

I ordered 6 new stepper motors and de-soldered the old ones, soldered new in with my little helper looking on, laid the instrument panel in the dash and turned it on, and thankfully, its working!


Earlier this week i also went to the junkyard and got a metal bumper off a junker for it.
So now all thats missing is the plastic bumper cover...
Curse these plastic cars

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Wow, he is really growing up Vince!!

 

[78C10BigTen]

For those of you who do not know much about the 4200, the earlier 02-05 crankshafts are proven to last to 800-900 WHEEL horsepower, the stock cams stop flowing around 4-500whp, and the stock pistons really need to be upgraded after 700whp

This is an all aluminum motor thats a BEAST and has the same specifications roughly as a 2JZ

Heres a cool website worth browsing on the 4200-

Vortec4200wiki - Dimensions

Info provided by Calvin of the Nivlac57 Youtube Channel, Jeremy of Lime-Swap, and 3258 of TrailVoy Forum

sites.google.com

They are fkn beasts hidden in plain sight for less than 1000$ usually

I never knew!

 

[Vbb199]

Been a while since ive touched this one. I was making slow and steady progress, then i hit a roadblock and parked it for a while.

I believe i mightve said earlier i built a decent 60e for my TB. I think i didnt include i was having a binding in reverse smh

I thought it to be wheel related, and alas it wasnt, after laying on the gas, it spat the servo and snapring out the side of the case LOL

So i figured i fudged the trans build, and said F it, i'll deal with it later. I had been working on my house and all the projects had to sit.

Last weekend i put a stock servo back in it. I had previously put a used corvette servo in it, and i recall checking and setting band clearance when i had the trans apart... no idea why it was grabbing so hard in reverse, but putting a stock servo assembly back in solved that. Reverse is nice and free again lol


So i moved on to the next phase. Putting some old hardware from the turbo lumina on.

My AEM wideband o2 sensor which i'll patch into Hptuners so i can tune my fuel tables, as well as a fuel pressure sensor.

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Yesterday i got the instrument panel calibrated to the PCM's measurements additionally. (I had them apart earlier to replace the motors)

The misses also helped me bleed the brakes out on all 4 corners.


Im hoping maybe next week i can get it all legal and on the road and begin tuning and fiddling.

Maybe i can put a set of cams in later this year or early next year.

 

[Catbox]

I drove one of those for a while and it was snappy for sure in stock form.
Being fully built and then boosted would be awesome.

 

[Vbb199]

Took it on its first drive on the road with my 10 day tag

Front drivers caliper seems to be stuck clamped, and the passenger side is also mildly grabbing.

It was smoking like hell by the time i arrived at the gas station.


I got it out on a straight and laid on it. Man that thing really rips. And it shifts real firmly at WOT.

Im excited to see what it does with a little tuning.