2004 6.0 NV4500 Tahoe

[Dantheman1540]

I’m curious as well. Be nice to be in the 19-20 range but that’s probably wishful thinking. With DOD turned off, it was getting around 16-16.5 before. I’m excited to see your thoughts on the heads. Main thing is the valve stem height being the same

If you get 19-20 I'll yank this damn 6.0 out and put a 5.3 in lol.

 

[Dantheman1540]

OhEmGee! I forgot how great working on good ole American-made Tahoes is. Did a catless downpipe on a 2013 Hyundai Veloster last night and it took 7 hours....... That did include a 2-hour trip running around town trying to find O2 sensors because the original were completely seized but still it was a terrible job. Even worse the car is still slow as crap and now it sounds worse, just can't keep kids from ruining stuff lol.

 

[pwtr02ss]

If you get 19-20 I'll yank this damn 6.0 out and put a 5.3 in lol.

My yukon will get 20-21 with a 6.2

It got up to 23 on the way back from Denver. Nice tail wind. Thats pen and paper maths not DIC math

 

[Dantheman1540]

My yukon will get 20-21 with a 6.2

It got up to 23 on the way back from Denver. Nice tail wind. Thats pen and paper maths not DIC math

So I need a bigger motor then?

No doubt the Yukon MPG is due to the better trans and DI. I don't want to mess with the DI engines anytime soon.

 

[Sam Harris]

If you get 19-20 I'll yank this damn 6.0 out and put a 5.3 in lol.

Feel free to ship that scrap over this way. [emoji16][emoji106]

 

[pwtr02ss]

So I need a bigger motor then?

No doubt the Yukon MPG is due to the better trans and DI. I don't want to mess with the DI engines anytime soon.

Si, always bigger


Yea, 10 speed is nice. It did shock me though. Trans and not working so hard to pull it around. Dads 2012 avalanche with 6 speed does pretty good as well. Been so long since I driven it, I think it was in the 19-20 range.

We'll see in a few weeks

 

[iamdub]

If you get 19-20 I'll yank this damn 6.0 out and put a 5.3 in lol.

I get 24-25 at 60mph, 22-23 at 65, 20-21 at 70, 18-19 at 75 and 16 at 90. Cammed and 3.73 with a 4L60E.

Tyler's is an Avalanche, so it's bigger and I'd expect about 1mpg less

 

[iamdub]

OhEmGee! I forgot how great working on good ole American-made Tahoes is. Did a catless downpipe on a 2013 Hyundai Veloster last night and it took 7 hours....... That did include a 2-hour trip running around town trying to find O2 sensors because the original were completely seized but still it was a terrible job. Even worse the car is still slow as crap and now it sounds worse, just can't keep kids from ruining stuff lol.

I bet all the spark plugs on that Veloster are easy to reach, though.

 

[Dantheman1540]

Si, always bigger


Yea, 10 speed is nice. It did shock me though. Trans and not working so hard to pull it around. Dads 2012 avalanche with 6 speed does pretty good as well. Been so long since I driven it, I think it was in the 19-20 range.

We'll see in a few weeks

I get 24-25 at 60mph, 22-23 at 65, 20-21 at 70, 18-19 at 75 and 16 at 90. Cammed and 3.73 with a 4L60E.

Tyler's is an Avalanche, so it's bigger and I'd expect about 1mpg less

You guys are pissing me off with those good numbers! Why can't I get better than 14-15!!!!!!!!!!!!!!!!!!!! (I do get 17 on the highway but that's trying hard)

I bet all the spark plugs on that Veloster are easy to reach, though.

This is true, still not worth a damn. He wants me to try tuning it and I want nothing to do with it since I'm not fluent in Korean.

젠장
jenjang

 

[pwtr02ss]

You guys are pissing me off with those good numbers! Why can't I get better than 14-15!!!!!!!!!!!!!!!!!!!! (I do get 17 on the highway but that's trying hard)

I'm going to throw a wild guess out there and say "your foot" and 6.0. We had a shop truck that would get about 12 (2500 with 4L80, crew cab, 4wd) and my buddies SSS gets a little over 15