looking for 2017ish Yukon Denali 6.2 Stock tune for comparision

[Custom 68]

I am working on my 2017 Sierra Denali 6.2 and have found reference to compare some parts in my tune to that in a Yukon. I don't know what all years but maybe 16 -17? If you have a stock tune I would appreciate it. I cant imagine there is a difference as they should be the same motors and all but who knows... Specifically in the VVT tuning area.
I have dug thru and may have found one but wanted to make sure.
Thanks in advance
Dave

[IARLLC]

Here is a stock 2017 Yukon Denali XL105 17 Stock.hpt

[Custom 68]

Thank you, I will do some comparing. I am gonna expect they are the same but now I will know.
Dave

[Custom 68]

I am working to understand the VVT timing retard in that "EGR" area. The retard is pretty steep as you all know in the low area, it appears that the 2014 and maybe 15 doesn't have as much of the retard in that area as these newer ones. The comparing the LT1 Corvette is is different yet.
I'm gonna keep reading...
Dave

[IARLLC]

I just compared a 2015 L86 6L80E Denali, a 2015.5 L86 8L90E Denali, and a 2017 L86 8L90E Denali cam maps and they are the same. If the 2014 you are talking about is a GEN4 L92 or something like that of course it is pretty different.

It is easiest to just copy the Low baro map into the mid and high baro maps. I blend them a little more than that leaving most of the map from .04-.40 cyl airmass alone. Response improves a lot, they don't need to downshift nearly as often, and I don't see much if any loss in fuel economy.

[rhindo]

heres a couple that should be close hope it helps there both 6.2l

2015 yukon.hpt 2017 seirra 6.2l.hpt

[Custom 68]

Thank you IARLLC. I have read lots of your posts thank you for the great info. You and several others are great assets to this forum. I had looked as well and didn’t see any difference either. Somebody had suggested it so I was digging. I had also seen about matching the low med hi tables but was going to log as I went. I’m ready to start some changes very slowly.
Thanks rhindo I will grab my laptop and look at those as well.
Any insight and direction is greatly appreciated.
Dave

[IARLLC]

Thanks Custom 68. There are some really great guys on here. I owe a lot to them.

Favorite rig I ever built was a 68 Stepside. What I'd give to get that one back and drop an LT4 or even an L86 in it

[Custom 68]

I've been fortunate to keep my truck. I've had her over 30 years. I guess that kinda tells my age lol. I did the gen 3 swap about 13 years ago before it became so mainstream to do. So at first I hot a lot of questions. After a cam swap then nitrous I decided to go turbo. After the 4l60 went I ran a t56 for a while. A clutch or 2 later I ended up with a 4l80. I like to drive it and have had it all over. It's a blast for sure. I had to learn to tune it but boy this new torque based stuff is sure interesting. I'll get there but just kinda slow. I can tell these gen 5 motors have a lot of potential but this is my driver I'm not looking to get everything out of it. I'm hopeful for just more in the mid and would love to get a few more mpg. Kinda to brag... Ha again thanks and I'm sure I'll be asking more questions as this is just a hobby and fun to mess with my own stuff.
Dave

[IARLLC]

That's awesome! There are some GEN5 experts on here that can help you get the results you want. I will try my best as well.
Jeff