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

[iamdub]

That's why I asked what the weight is.
@iamdub would probably like to know also.

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Yeah, I'm kinda blown away by his results even before the cam and heads. Granted, he has the 6L80 versus my 4L60, but I'm not sure if that would make that much of a difference. Mine's an LTZ so it has a little more weight than a PPV and I haven't removed anything but the third row seats. His mods are geared towards what would be done for a car racing in an NA class, which usually results in all mid- to top-end power and a notable loss of low-end. All stock except for MIT with AEM filter and an 18" free-flowing muffler, my best was a 15.656 @89.05, 2.439 60'. It's definitely stronger with the cam, mild shave, raised compression and looser converter. But, I'd be surprised if it's even .75 seconds faster.

@1BADI5, how much Torque Management, if any, is in your tune? I have a feeling that's what's killing my power. Although not as bad as stock, it still has that "VTEC" characteristic at 3,000 RPM.

 

[iamdub]

Trimmed off the clip's and the tabs of the bracket for front fascias lip. I think it look's better without it [emoji2373]. Also put my new headlights in. I need the fogs now.





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This gives me an idea. I could slice up my stock grille and paint it gloss black to match my new all-black grille (same as yours) and put them in those holes.

 

[osiris94ej]

This gives me an idea. I could slice up my stock grille and paint it gloss black to match my new all-black grille (same as yours) and put them in those holes.

I want to get the block off ones for the ppv or without tow hook's. Mine used to have a grille guard on it.

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[iamdub]

I have some black RTV on hand, i love that stuff.

Just thought of another while-you're-in-there item: AFM pressure release valve deflector.

Part #12639759

https://www.amazon.com/General-Motors-GM-Deflector/dp/B00CMTK3QI

 

[iamdub]

I want to get the block off ones for the ppv or without tow hook's. Mine used to have a grille guard on it.

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Have a part number? All the ones I'm finding have the cutout for the tow hook:

 

[osiris94ej]

Have a part number? All the ones I'm finding have the cutout for the tow hook:

I haven't looked for them yet. But im sure i can find them.

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[osiris94ej]

Have a part number? All the ones I'm finding have the cutout for the tow hook:

I just searched a little and same result. It looks like you could make a flat plate out of some 1/8" abs that could be epoxied to the back.

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[iamdub]

I just searched a little and same result. It looks like you could make a flat plate out of some 1/8" abs that could be epoxied to the back.

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I had that thought. Then, after looking more at your pic, I ended up down a rabbit hole looking for any data on frontal air pressure to use the holes as "dual snorkels" for a ram air setup. The +1HP at 90MPH would make the duct fabrication and routing completely not worth it. Modding these in any way is definitely a form-over-function idea.

 

[gooffeyguy]

Or duct it to cool the front brakes?

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[gooffeyguy]

Yeah, I'm kinda blown away by his results even before the cam and heads. Granted, he has the 6L80 versus my 4L60, but I'm not sure if that would make that much of a difference. Mine's an LTZ so it has a little more weight than a PPV and I haven't removed anything but the third row seats. His mods are geared towards what would be done for a car racing in an NA class, which usually results in all mid- to top-end power and a notable loss of low-end. All stock except for MIT with AEM filter and an 18" free-flowing muffler, my best was a 15.656 @89.05, 2.439 60'. It's definitely stronger with the cam, mild shave, raised compression and looser converter. But, I'd be surprised if it's even .75 seconds faster.

@1BADI5, how much Torque Management, if any, is in your tune? I have a feeling that's what's killing my power. Although not as bad as stock, it still has that "VTEC" characteristic at 3,000 RPM.

What is the VTEC characteristic?



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