What did you do to your NNBS GMT900 Tahoe/Yukon Today?

[RooTBeeRthe1st]

What's that black spot on your headlight lens?

I put some bright ass LEDs in there, and so the headlights no longer had a really clean cut off line, and I hate people blinding me from in front or behind so I cut out a piece of vinyl and laid it on there to make a super clean cut off without blocking the reflectors or high beams.
Only time I've ever had anybody flash lights at me was when I was towing in the back was squatted down, but that was also in the middle of the night on a two-lane highway a bunch of truck drivers coming at me.

 

[Bill 1960]

Spent some quality time behind the wheel today.

Marred by the sound of a cobra hissing when I apply the brakes. Guess I’ll be pricing a brake booster and MC soon.

 

[RooTBeeRthe1st]

Yup. Stock c*nt strikes again.
Glad I bought that rad weeks ago!
Hopefully I can get it in and still get some decent sleep tonight still make it to work on time in the morning.

Also, thank goodness for spare vehicles. Even if they're 40 year old falling apart "beater"

 

[Just Fishing]

I just went wild and crazy, played around with timing.
The 6.2 timing =

 

[08z71bgm]

I just went wild and crazy, played around with timing.
The 6.2 timing =

Hell yeah it is! They love timing. I can’t wait to finish tuning on 93 with my LSA so I can tune on e85 and throw more timing at it!

I installed an aux pump on my car recently and it threw my tune way off because of the pressure now but I figured out how to control the fuel pressure so the computer knows what to expect now and all is well. Some fine tuning with my maf to lean it out more upstairs and I should be fine. My engine likes to be at .650 when in PE. Way up too it’s dipping .550 and possibly lower. Way better than it was tho!!! I made that FPCM my female dog!!!!

 

[Just Fishing]

Hell yeah it is! They love timing. I can’t wait to finish tuning on 93 with my LSA so I can tune on e85 and throw more timing at it!

I installed an aux pump on my car recently and it threw my tune way off because of the pressure now but I figured out how to control the fuel pressure so the computer knows what to expect now and all is well. Some fine tuning with my maf to lean it out more upstairs and I should be fine. My engine likes to be at .650 when in PE. Way up too it’s dipping .550 and possibly lower. Way better than it was tho!!! I made that FPCM my female dog!!!!

Yup, i have a long ways to go for my understanding.
I also need that wideband installed so i can start data logging and understanding, and thinking in this "stoich" thing.


with the 6.2 tune, all was pretty good.
except when i punched the throttle.
right at first punch, i would see some ping and timing retard.
iirc there was a table that i copied over that might be the cause of this, so i need to spent more time looking at the different tables for a better understanding.

But so far, the trailblazer ss timing map is super weak sauce, and my hoe runs good on it.
But it's not happy.

I put the different timing maps in my build thread as a general reference.

I think the next one I'm going to try is the 08 escalade 6.2 map.
it's not as aggressive as the 09 that i tried before.
Otherwise, i need to figure out what's causing the stutter/timing retard with the 09 map at the first throttle press.


Wideband will be awesome, and some peace of mind for WOT over 3500 rpm...
I'm expecting those heads to make me go a little lean.

but then again, I'm still running the wee 5.3 exhaust system.
That's probably next on my list of upgrades, but after i pay for the 6.0 build and get my cc cleaned off.

 

[Just Fishing]

On that train of thought for the upgraded exhaust.
for the y pipe, would a truck one with the 6.0 or 6.2 work for the hoe?
(I doubt I'll find a used one since the cats would be part of it)

Reading around, it sounds like the 6.2 should have a larger dia exhaust pipe, and the y pipe should have more girth?

Otherwise, i'll try and source a good condition escalade exhaust system.
It's been a while since i wandered the junk yards.
Always a lot of fun.

But i always seem to bring home a nail or two in my tires, so i stopped going.
If i can find a good local one, i'll probably head over there with the S10.

Once the hoe is 100%, i'll return to trying to give the s10 away.
or it will end up at the property as a beater.

 

[Tonyrodz]

On that train of thought for the upgraded exhaust.
for the y pipe, would a truck one with the 6.0 or 6.2 work for the hoe?
(I doubt I'll find a used one since the cats would be part of it)

Reading around, it sounds like the 6.2 should have a larger dia exhaust pipe, and the y pipe should have more girth?

Otherwise, i'll try and source a good condition escalade exhaust system.
It's been a while since i wandered the junk yards.
Always a lot of fun.

But i always seem to bring home a nail or two in my tires, so i stopped going.
If i can find a good local one, i'll probably head over there with the S10.

Once the hoe is 100%, i'll return to trying to give the s10 away.
or it will end up at the property as a beater.

Just curious--how beat up is the S10?

 

[Drok]

Well today im installing a 10” sub just for that little extra.

i do have a Q though, seems i cant find the info for some reason.
Is the thick black and redish pink wire the pos and neg?

 

[Just Fishing]

Just curious--how beat up is the S10?

It's actually really clean, i took good care of it.
ZR2 Blazer.

I got it 3 years old, and i think with like 30k on it.
It had just come off of a lease.

condition,
Mostly It just has high miles, and the transmission is shot.
(I think the t case is failing too, common issue with the miles)

The hood also has some clear coat crackling.
Driver side door has been repaired twice thanks to some criminal jabbing a screwdriver through it twice in order to break into the thing.
Body shop went to town with the buffing both times, leaving the clearcoat pretty thin...
I think that's the cause of the hood paint failure.

And it's the same color as your tahoe from the looks of the image.

The transmission is being held together by hp tuners right now.
I think the o-ring on the end of the input shaft has gone or has shrunk, drops in and out of lockup.
so hp tuners has that disabled, and the pressures modified since i believe i'm also loosing pressure in that area.

The ac did work last year, but this year it started acting up.
I haven't cared enough to look to far into the issue, might be a switch, or some line started leaking.

Oh and the transfer case, i think the pump has begun to fail, and it's digging into the case housing.
Makes a terrible noise...

And the driver side seat lumbar support has failed.
making it very uncomfortable to drive.
I have one of those foam lumbar supports strapped in the seat so it won't totally kill my back.

And the abs has failed, classic case of needing to re-flow the solder.

A few years ago, i could have had the ins total it out when the front control arm mounts started ripping off of the frame.
I had my welder go through and tig weld it up.
He also added some extra supports, so far it has been gtg.


Another possible, i build up the 5.3 with junkyard parts.
Maybe keep with the gen 4 block since it looks like the 4.3 knock sensors should bolt right up.
and then get some cheap Gen 3 internals.
Wild guess, i'll probably need the lower resolution crank wheel from the gen3 in order to make it work.

I also know how to rebuild the 4l60e, and i have all of the tools needed thanks to my vette.

And to be honest, it's mostly my wife wanting to get rid of it.
The drive way is getting pretty packed with my toys/projects.