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

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I had no idea they still made them. huh.


yeah, I very well might have just bought new ones lol
They were a bit of a pain to install because of the push fasteners. Some of them the radiator was in the way and to get clearance I had to loosen the radiator mounts and tip it back a bit.

Oh, and that Vortech after cooler was a bit cheaper back then, but not by much. It was like $1500-$1800
 

Sparksalot

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Made mine out of this sh*t. Works good. I think @Sparksalot did too.



Yep. X2 since I did thecopcar and theothertwin at the same time.

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j91z28d1

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messing around with ducting air up to the air box area.


now that I got both air Temps handy on my phone. might be able to see if something help. currently about 10deg difference at 10mins of interstate speed cruising. 20 plus around town.

can't hardly touch the outside of the maf after driving around town for a bit.. got some insulation I might experiment with too.

PXL_20240628_190235868.jpg
 

Grady_Wilson

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I had toyed with the thought of attempting to rebuild the front differential that comes out of my Yukon. I have a junkyard replacement sitting in a box in the basement....just zero motivation to pull the bad one.
I say rebuild the spare unit first and just do a swap.
 

RooTBeeRthe1st

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No just cut it to fit it's pretty easy to work with. You can make a template out of cardboard I guess if yours is missing.
I actually bought a full set of four pieces because mine were all trashed, have yet to put them in. And probably never will but now I will use them as a template for either some thin aluminum sheet metal or potentially that corrugated plastic that was just referenced
 
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messing around with ducting air up to the air box area.


now that I got both air Temps handy on my phone. might be able to see if something help. currently about 10deg difference at 10mins of interstate speed cruising. 20 plus around town.

can't hardly touch the outside of the maf after driving around town for a bit.. got some insulation I might experiment with too.

View attachment 431374
Does your model have the louvers cut into the inner fender? I think their purpose is to keep large debris from being sucked up into the airbox.

20200314_211025.jpg
 

j91z28d1

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Does your model have the louvers cut into the inner fender? I think their purpose is to keep large debris from being sucked up into the airbox.

View attachment 431393


it does, I thought it was a bit weird, something to do with how air flows around thru the fender? they are angled up, like air would flow down into the fender well. it's pretty sealed up really, besides what comes in around the headlight, I didn't see a real air pathway to the box they made behind the air box.


just for a test I ran my hose from the fog light hole, up to the louvers and just zip tied it there. didn't see the point in cutting them up just testing stuff.


I very well could be feeding it with two pressure sources, around the headlight and the hose. I may move it so that the hose gives it an exit to a lower pressure area. get some fresh air flowing thru it to cool off the area. still seems weird to me I'd pick up over 10deg from the grill to 6in after the air filter. I was able to check this morning. the outside air was a little different reading than intake, but as soon as I started it. it jumped straight to the same temp, and then maf temp slowly climbed as I drove to work, while the outside air stayed the same.

right now I think my maf is just getting to much radiant heat where it's at. so the temp reading might not be reliable.
 

j91z28d1

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that power core filters is the one I'd like to run. I believe it's a good one for flow and filter.

that looks like the volant box, I've almost bought it twice. they seem to have a ram air tube for it, but I'm not sure it would fit mine.

I didn't know corsa made one.

have you seen the vararam intake? I really like that design, gets completely away from the hot fender and gets it's air from a nice cool high pressure source right in front. but sadly mine has its 2 coolent reservoirs and 2 coolent pumps right where it runs. so not something I can easily move around.
 

07Burb

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that power core filters is the one I'd like to run. I believe it's a good one for flow and filter.

that looks like the volant box, I've almost bought it twice. they seem to have a ram air tube for it, but I'm not sure it would fit mine.

I didn't know corsa made one.

have you seen the vararam intake? I really like that design, gets completely away from the hot fender and gets it's air from a nice cool high pressure source right in front. but sadly mine has its 2 coolent reservoirs and 2 coolent pumps right where it runs. so not something I can easily move around.
I’ve not seen the vararam intake :shrug:

The volant and this Corsa may very well be at the least very similar if not the same. I know the price is super similar. I jumped on this one because I got it at a $50 discount. I ran a Corsa intake on my ‘17, too, and liked it so knew I’d get one for my ‘09 once I had enough pennies collected. It’s a nice quality unit for sure :waytogo:

Only downside is the instructions suck pretty good but other than that I’d recommend
 

j91z28d1

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I’ve not seen the vararam intake :shrug:

The volant and this Corsa may very well be at the least very similar if not the same. I know the price is super similar. I jumped on this one because I got it at a $50 discount. I ran a Corsa intake on my ‘17, too, and liked it so knew I’d get one for my ‘09 once I had enough pennies collected. It’s a nice quality unit for sure :waytogo:

Only downside is the instructions suck pretty good but other than that I’d recommend


I'd like to see it in person and what kinda filter it used but seems like it probably goes right where baffles they fall apart go.

Screenshot_20240629-141607.png
 
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it does, I thought it was a bit weird, something to do with how air flows around thru the fender? they are angled up, like air would flow down into the fender well. it's pretty sealed up really, besides what comes in around the headlight, I didn't see a real air pathway to the box they made behind the air box.


just for a test I ran my hose from the fog light hole, up to the louvers and just zip tied it there. didn't see the point in cutting them up just testing stuff.


I very well could be feeding it with two pressure sources, around the headlight and the hose. I may move it so that the hose gives it an exit to a lower pressure area. get some fresh air flowing thru it to cool off the area. still seems weird to me I'd pick up over 10deg from the grill to 6in after the air filter. I was able to check this morning. the outside air was a little different reading than intake, but as soon as I started it. it jumped straight to the same temp, and then maf temp slowly climbed as I drove to work, while the outside air stayed the same.

right now I think my maf is just getting to much radiant heat where it's at. so the temp reading might not be reliable.
The air filter box opening is right above these louvers. The is where the engine gets its air and my Yukon has no real opening under the headlight, so the air is brought in from this low pressure area of the fender just in front of the wheel well. I think the louvers are there to keep any leaves, plastic shopping bags, etc getting sucked up into there
 

Doubeleive

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Has anyone bought a spare tire winch from eBay? Good, bad, or indifferent?
I need to replace the original one on thecopcar. It won’t lift the tire back up.
I have seen the oem ones on there, I don't think they cost much price is a probably a toss up between rockauto/amazon/ebay
i see the skp for $55 and dorman for $89 on rockauto
aftermarket on ebay for $34
hell could probably just grab one from the junkyard should be the same part for a lot of years like 00-20
 
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j91z28d1

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The air filter box opening is right above these louvers. The is where the engine gets its air and my Yukon has no real opening under the headlight, so the air is brought in from this low pressure area of the fender just in front of the wheel well. I think the louvers are there to keep any leaves, plastic shopping bags, etc getting sucked up into there


I'll have to look at it again next time I have it up in the air. I was looking for air coming from the front and didn't see anything. that's why I was thinking just the space between the head light and bumper cover. everything else seemed very sealed up.

if it is just pulling air in from the under side, that would explain when it's warmer than outside.


I could have sworn Volant sold something like this for the suv's as well, but it I can only find the trucks now.

Screenshot_20240629-210933.png
 

Sparksalot

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I'll have to look at it again next time I have it up in the air. I was looking for air coming from the front and didn't see anything. that's why I was thinking just the space between the head light and bumper cover. everything else seemed very sealed up.

if it is just pulling air in from the under side, that would explain when it's warmer than outside.


I could have sworn Volant sold something like this for the suv's as well, but it I can only find the trucks now.

View attachment 431453
After i ventilated the hood on thecopcar the incoming air temperature dropped pretty dramatically.
 

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