Useless Information

[randeez]

brakes are whatever was on there when i bought it, one of the rear one just started makin a little noise I'll prob just throw a set of pads on it in the short term, flush all the old fluid out. Braking doesnt feel to bad on mine, i dont have anything close to reference to compare it to, so thats not saying much. got any ideas for brake upgrades? any brands to stay away from? probably wouldnt do anything to the rears maybe a quality drilled/slotted to look pretty with stock caliper, fronts id love to get a big 6 piston caliper but thats a little low on the list of things to do at the moment.
I'm almost happy with performance for a little bit, drop and wheels is next up

With the stall converter on mine foot braking it up is effortless, it was built to be for about 3k rpm, I'll usually load it up to 2500-2800.

 

[iamdub]

Heres from last night, 93 octane. still doesnt launch all that great,Abs/stabilitrac/traction control isnt happy
May try and pull a few fuses before i go back to see if it helps. I think track is shut down untill january tho


View attachment 188894

13-second Yukon?! What's the specs?

Grab a cheap obd2 bluetooth adapter and torque or dash command to see ethanol

View attachment 188903 View attachment 188904

Was that head unit plug-and-play or did you need any additional adapters to retain steering wheel controls and chimes? RSE still functional?

 

[randeez]

13-second Yukon?! What's the specs?




Was that head unit plug-and-play or did you need any additional adapters to retain steering wheel controls and chimes? RSE still functional?

2012 6.2 6l80e awd 3.42s, 218/228- .600/.600 vvt cam, 3k stall, long tubes, tune, full interior....hoping to knock a few more .10s off with nice e85 tune, different wheel/tire (stock with nitto cross treks now), and hoping 4" drop spring is a little stiffer than stock

the head unit is PnP for 07-11, it comes with a canbus decoder and the female end for the factory harnesses. My 2012 uses different wiring and I had to cut the provided ends off and match it up to different PAC adapters for my application. Steering wheel controls are retained/ programmable for one touch and hold for different function. still have seat belt, door, key in ignition chimes all works. the decoder also breaks out NAV needed signals- reverse, vss, parking brake. I have to use the bluetooth adapter on the obd2 port to view torque. with the provided harness canbus may have been directed to the head unit and have been able to grab info needed with out the bluetooth adapter
the RSE *on mine* i think i may have messed something up - currently it is always displaying what is on the head unit. This could be due to a few reasons. I didnt really mess with the stock headunit/rse so i dont know how it was supposed to function - obviously the rear dvd displays on the rear screen and audio is directed to the head unit. i dont know if it was able to play dvd at headunit displayed on rear screen. in either case, i grabbed a PAC adapter to add additional video source so that i could play dvd from head unit, displayed on rear screen. I havent really been able to find any way to switch sources or even just have a blank screen in the rear

Mine had factory:
-NAV , android head unit came with adapter to existing antenna, did not work for me.
-Bose , retained works fine, all functions work except front/rear fade, have some eq function now sounds a little better
-Bluetooth phone , "over lays" radio, by design radio should mute when phone call comes in - i think i wired something wrong because phone calls would turn off head unit, to fix i just stopped using the factory bluetooth
-Onstar , never used not sure what functions are retained without factory head unit/gps they can probably not locate me
-RSE , to add to the above, not trying to use head unit as input all should work as intended

 

[iamdub]

2012 6.2 6l80e awd 3.42s, 218/228- .600/.600 vvt cam, 3k stall, long tubes, tune, full interior....hoping to knock a few more .10s off with nice e85 tune, different wheel/tire (stock with nitto cross treks now), and hoping 4" drop spring is a little stiffer than stock

the head unit is PnP for 07-11, it comes with a canbus decoder and the female end for the factory harnesses. My 2012 uses different wiring and I had to cut the provided ends off and match it up to different PAC adapters for my application. Steering wheel controls are retained/ programmable for one touch and hold for different function. still have seat belt, door, key in ignition chimes all works. the decoder also breaks out NAV needed signals- reverse, vss, parking brake. I have to use the bluetooth adapter on the obd2 port to view torque. with the provided harness canbus may have been directed to the head unit and have been able to grab info needed with out the bluetooth adapter
the RSE *on mine* i think i may have messed something up - currently it is always displaying what is on the head unit. This could be due to a few reasons. I didnt really mess with the stock headunit/rse so i dont know how it was supposed to function - obviously the rear dvd displays on the rear screen and audio is directed to the head unit. i dont know if it was able to play dvd at headunit displayed on rear screen. in either case, i grabbed a PAC adapter to add additional video source so that i could play dvd from head unit, displayed on rear screen. I havent really been able to find any way to switch sources or even just have a blank screen in the rear

Mine had factory:
-NAV , android head unit came with adapter to existing antenna, did not work for me.
-Bose , retained works fine, all functions work except front/rear fade, have some eq function now sounds a little better
-Bluetooth phone , "over lays" radio, by design radio should mute when phone call comes in - i think i wired something wrong because phone calls would turn off head unit, to fix i just stopped using the factory bluetooth
-Onstar , never used not sure what functions are retained without factory head unit/gps they can probably not locate me
-RSE , to add to the above, not trying to use head unit as input all should work as intended

Thanks for the thorough synopsis! I'll have to research this thing further cuz I may not have some or any of the issues you have/had. I did an OEM nav upgrade cuz I wanted to retain ALL the original functions, RSE included. By RSE, I just mean the rear radio controls in the back of the center console- No rear DVD. Looking back, I now see that that's just ridiculous because it's never used. I'm giving up Bluetooth music streaming, better EQ, better nav and who knows what else just to retain an OEM function that I don't use.

 

[randeez]

Yea, the integration of it is nice...but not being able to watch movie up front kinda sucks (some work projects im stuck in truck all day watching or escorting contractor) , no bt music. Factory nav does have ability for traffic/weather live updates but have to pay for xm service iirc

 

[swathdiver]

Yea, the integration of it is nice...but not being able to watch movie up front kinda sucks (some work projects im stuck in truck all day watching or escorting contractor) , no bt music. Factory nav does have ability for traffic/weather live updates but have to pay for xm service iirc

I used to sit in the back on days like that.

Randy, I never really looked into upgrading the brakes. I just replaced the rears with all ACDelco and that which was original equipment. Forgot all about ceramic pads, they were oe on my '06 Pontiac but not the '99 and the former stopped much quicker. I do believe though that someone makes larger rotors and twin piston calipers but must have at least a 20" or larger wheel for them to fit. Eventually it will be kinda important so we don't miss that right turn at the end of the run and wind up in the sand trap!

 

[swathdiver]

Went out this morning to change the plugs and wires. Pulled #1 and it is a 41-110, so they've been changed. Wires looked fine, put it back in and closed the hood.

My wife took the truck out to dinner last night with our girls, they said they had fun driving it, this tank is averaging about 9 mpg now!

 

[Kenny D]

I just read through most of this thread and I may have missed something Swathdiver, but you are only getting 9 mpg. Wow. I looked last night and my 3 month average was 17.2 with the 5.3, 6 speed, 2wd, 3.08, AFM off with 89 diablosport tune.

 

[swathdiver]

When I bought the truck it's lifetime average was 15.4 mpg and since October it's been in the 12s but three tanks of that is E85. I suspect that passenger side cat, the clamp came in today so maybe next Tuesday if time permits.

You're besting Chris' Tahoe, he's getting about 1 mpg less than you. Hey Chris, that tune pick up your mileage any?

 

[iamdub]

You're besting Chris' Tahoe, he's getting about 1 mpg less than you. Hey Chris, that tune pick up your mileage any?

Considering his 6-speed/3.08 to my 4-speed/3.73, I'll accept my 1 MPG deficit.

The tune didn't do anything but disable AFM, speed limiter and rear O2s and tweak some of the transmission stuff a little. No fuel/timing/performance tweaks were made (unless you count removing some Torque Management as performance). I lost about a half mile per gallon since disabling AFM. More recently, I filled up with 89 octane from Chevron the tank before last and Jenn filled up since that one with 87 octane from Murphy USA (Walmart). When we were in it this afternoon, only about 1/8 tank had been burned of the Murphy 87 and the average was at 16.4. So, just running 89 octane more than compensated for the loss from no AFM.

I did the math recently and calculated for $2.40/gallon. Copy/pasted from that post:

"At $2.40 per gallon, my original 16.2 MPG calculates to 14.8 cents per mile. Without AFM, a mile now costs me 15.3 cents. That's an increase of half a cent per mile and ten cents per average 20-gallon fill-up (I don't run the tank bone dry between fill-ups).

I can afford the extra $1.00 a month to possibly prevent me from having to spend thousands of dollars to repair or replace the engine. Also, if disabling AFM reduces the ~1 quart per month oil consumption even a fraction of a quart, then the savings in the oil costs alone would make up for the drop in MPG in multiples."

89 octane gas costs 20-30 cents more per gallon so that alone negates the financial savings by almost $4 per fill-up. It was an interesting observation, though. I'm gonna search for E85 stations along our route for tomorrow and give that a shot cuz I've never tried it. I'm not so sure I've ever seen an E85 pump in person.