2005 Escalade EXT (aka GMT 800 argument thread)

[WTF?]

If we skate into 3/4 ton land this thread is doomed. I digress. My Blackbear tuned 6.0 drives much better than a stock one. Tows 9000 fine but it's there. Get's 14 mpg ish daily and if you hook an empty lawn trailer to it, that goes down to 8. My record is 4mpg when when we were late to go crawling and I was in the 90-100 mph range killing it. It's like there's a switch on the hitch that makes it get 8 with anything hooked to it. I've driven it 200k miles. I'm extremely happy with it.

Tech 2 arrives today to try and get the rear HVAC working. There's some sort of motor running in the ceiling near the temp sensor in the rear. I can hear it when I put my ear to the headliner. already replaced the module with a junkyard one. See if that makes a difference.

first off lets establish this baseline- is this routed through a 4l80?

14 mpg mixed daily? sorry, but our test results determine that is a pure 100% lie... Like i'll believe the magnets on the fuel line and vornado intake turbine give you +1mpg before you convince me you ride that unicorn fuel sipper 6.0 around town on a daily basis.
14.0 mpg at 55-60mph descending off the top of the continental divide I'll half way buy. (Just about like i'm buying that you towed a crawler on a trailer at 90-100mph behind a 6.0 for a sustained period of time)

Not gonna doubt the tune probably wakes it up, I know these things are reliably rumored to have performance potential. (I was taken aback to learn recently that Blackbear now gets $700 for a tune and logger- thanks brandon-nomics.)

 

[WTF?]

And i'm not even sure there is an argument that fords autos aren’t better than 4l80 for longevity and durability in a hd pickup towing environment. I’m just not a huge fan of how the shifts feel.

my allison sound is a trip down memory lane to the audible experience of riding around in a schoolbus, again nobody's mistaking this for a lexus, but it grabs gears up and down like it damn well means it .


I got in a early super duty and grab the 94 taurus shifter in front of the 94 taurus gauge cluster, and the shifts are about as authoritative as in a 94 taurus.

 

[KacksterK5]

first off lets establish this baseline- is this routed through a 4l80?

14 mpg mixed daily? sorry, but our test results determine that is a pure 100% lie... Like i'll believe the magnets on the fuel line and vornado intake turbine give you +1mpg before you convince me you ride that unicorn fuel sipper 6.0 around town on a daily basis.
14.0 mpg at 55-60mph descending off the top of the continental divide I'll half way buy. (Just about like i'm buying that you towed a crawler on a trailer at 90-100mph behind a 6.0 for a sustained period of time)

Not gonna doubt the tune probably wakes it up, I know these things are reliably rumored to have performance potential. (I was taken aback to learn recently that Blackbear now gets $700 for a tune and logger- thanks brandon-nomics.)

Yep, 4L80, I'll do the math on a video for you if you want next time I get fuel. 14.3-5 most tanks. I drive like a white person, run about 5-10 over most places, 70-75 on the highway. it was 13 flat before I tuned it. I've had the truck for 16 years, I know what it does.

So, Per Justin from Blackbear, the timing on these trucks from the factory is locked in, it doesn't advance until the pedal has been on the floor for 60 seconds. Which is either on the speed limiter or pulling hard up a hill or something. The truck effectively doesn't burn all the fuel in the cylinder from how retarded the timing is most of the time. Also, these things are programmed for any mexican to floor it from stoplight to stoplight and not blow up until the warranty is out. The torque management is ridiculous and saps power to the driveline, resulting in more pedal to go farther. once all that stuff is pulled and they fuel map is cleaned up, they'll get better mileage. He did mine from the passenger seat on a laptop, this was a while ago. The logger cable is a deposit I think, you pay $250, log your truck for a week then send the info back, he sends you a PCM, you send him the logger back after the re-learn. I think.
it's different for the 8.1 IIRC, just go to your local dyno guy

 

[45acp]

If you've got a 6.0 2500 averaging 14mpg it's a 2wd reg. cab with special ordered 3:42's, and you've got 235/85's on it @ 70psi.

I will vouch for the blackbear tune, it absolutely woke mine up and made a very noticeable difference in power both towing and just farting around daily driving. Before the tune it averaged 11.1mpg, now hovers around 11.8mpg.

 

[WTF?]

Yep, 4L80, I'll do the math on a video for you if you want next time I get fuel. 14.3-5 most tanks. I drive like a white person, run about 5-10 over most places, 70-75 on the highway. it was 13 flat before I tuned it. I've had the truck for 16 years, I know what it does.

So, Per Justin from Blackbear, the timing on these trucks from the factory is locked in, it doesn't advance until the pedal has been on the floor for 60 seconds. Which is either on the speed limiter or pulling hard up a hill or something. The truck effectively doesn't burn all the fuel in the cylinder from how retarded the timing is most of the time. Also, these things are programmed for any mexican to floor it from stoplight to stoplight and not blow up until the warranty is out. The torque management is ridiculous and saps power to the driveline, resulting in more pedal to go farther. once all that stuff is pulled and they fuel map is cleaned up, they'll get better mileage. He did mine from the passenger seat on a laptop, this was a while ago. The logger cable is a deposit I think, you pay $250, log your truck for a week then send the info back, he sends you a PCM, you send him the logger back after the re-learn. I think.
it's different for the 8.1 IIRC, just go to your local dyno guy

they must have tuned the speedo ratio incorrect so it reads 10-15% high and runs the trip odometer accordingly. That would also help explain 90-100mph towing.

but seriously is it a 2wd, non-hd (low profile) 2500? 14.4 mpg at 75(mph not km/h right?) 6.0 is unicorn fart fairytale level shit.

side skirts and wheel caps?

Edit; looking back the post mentioned rear HVAC (after you said you towed at 100mph- guess I was distracted by that.) are you talking about a 2500 suburban with a 6.0??? Much better aero and the lighter duty frame that’s 8-10” shorter than an ecsb truck for the soccer mom machine would make you less of a liar, but I still don’t see 14.5 being realistic over 70 mph.

 

[TRINDU]

14.4 mpg at 75(mph not km/h right?) 6.0 is unicorn fart fairytale level shit.

Exactly. No amount of jew math can convince me otherwise.

 

[Ebs]

Relax, lol. I don’t live on here. Somewhere around $8k I think. My boss is lazy when it comes to selling things. He keeps saying “I need to sell it” but doesn’t do anything to actually sell it. He has been threatening to sell it for a year or so. He doesn’t use it anymore other than to drive it once a month to keep the fluid moving. I will probably end up selling it for him in a month when the tax refunds hit. I will probably list for $8500 see what the interest is and then take the first $7k.

In the future when you want to get ahold of me just go through my secretary “Trindu”

I've got $7k and a plane ticket.

 

[KacksterK5]

they must have tuned the speedo ratio incorrect so it reads 10-15% high and runs the trip odometer accordingly. That would also help explain 90-100mph towing.

but seriously is it a 2wd, non-hd (low profile) 2500? 14.4 mpg at 75(mph not km/h right?) 6.0 is unicorn fart fairytale level shit.

side skirts and wheel caps?

Edit; looking back the post mentioned rear HVAC (after you said you towed at 100mph- guess I was distracted by that.) are you talking about a 2500 suburban with a 6.0??? Much better aero and the lighter duty frame that’s 8-10” shorter than an ecsb truck for the soccer mom machine would make you less of a liar, but I still don’t see 14.5 being realistic over 70 mph.

Speedo is correct. GPS verified. Next time I drive it I'll do the math on camera. 2002 2500hd Ex cab SB, 4.10s, 265 75 16 BFG KO2's. I have no reason to lie about this. It's not a Cummins that makes it's own fuel.

Rear HVAC is in the 03 Tahoe I just got for a daily, which is why I'm in this thread about half tons. It has 4.10's too, RPO GT5, Are you going to argue with me that it get's 16.4 on the road with the cruise at 75?

 

[KacksterK5]

Speedo is correct. GPS verified. Next time I drive it I'll do the math on camera. 2002 2500hd Ex cab SB, 4.10s, 265 75 16 BFG KO2's. I have no reason to lie about this. It's not a Cummins that makes it's own fuel.

Rear HVAC is in the 03 Tahoe I just got for a daily, which is why I'm in this thread about half tons. It has 4.10's too, RPO GL5, Are you going to argue with me that it get's 16.4 on the road with the cruise at 75?

I'm thinking the aspirators might be screwy, the heat never really gets as hot as the 02 with manual controls, even when it's set on 90 in the front. If I leave it on 85 it will warm up in the morning but if I turn it down 1 degree to 84 it will blow cold. Thing is goofy. I've just been leaving it on 90 and using the blower speed to control, but it never really burns me out like the pickup heat does.

 

[WTF?]

Speedo is correct. GPS verified. Next time I drive it I'll do the math on camera. 2002 2500hd Ex cab SB, 4.10s, 265 75 16 BFG KO2's.

2wd?

I think the most likely explanation is that someone on the production line was having an off day and put a 5.3 where a 6.0 was supposed to go.

 

[TiTRD]

Poured some sweet elixir of head gasket in a can in my 6.0 this week. Coolant pouring out the exhaust.

 

[[memphis]]

Has anyone in this thread bitched about the offset steering column in the GMT800s yet?

I liked it because it was easy to hold the wheel leaning on the window frame 😂

 

[KacksterK5]

2wd?

I think the most likely explanation is that someone on the production line was having an off day and put a 5.3 where a 6.0 was supposed to go.

4wd. 6.0, 4l80, 4.10s, BFG KO2's, 45 psi front, 50 rear, 75 rear when towing. Mobil 1 oil in the rear, mobil 1 in the engine, 50k on plugs, I think I put wires on it around then, AC delco air filter, 87 Octane tune.

I've owned since Jan 1, 2008, it has 23,525 miles on it when I signed the paperwork, now has 224,500 on it and I've put.... a set of unit bearings in it, all new brakes and calipers, rear axle flange seal started leaking where it bolts to the hub about 7 years ago, fixed that, couple sets of u joints, jb welded the pump rub leak about 3 months ago, have parts, need to fix properly, torsion bar mount bushing on drivers side is ready for replacement, brake lines, fuel lines, oil pressure sensor because I gigged it when replacing fuel lines, muffler replaced with Walker stock muffler, AC compressor and condenser, water pump, steering pump because I thought it was whining but it wasn't, passenger engine mount, shocks.

So, it's all stock and the wear items have been replaced. No truck this old is repair free. The whole time I've owned it, after tuning, without towing, driving around normally, it has gotten 14ish.

 

[Bebop]

So, Per Justin from Blackbear, the timing on these trucks from the factory is locked in, it doesn't advance until the pedal has been on the floor for 60 seconds.

Are you sure he mentioned timing and not PE ?

 

[OutlawRider]

6.0 SCLB 2wd (non-HD)
10-11 mpg pretty consistent but the motor has O2 sensor issues. Idles a little rough till it warms up. Burns a bit of oil. And has no AC on it at all (has been removed). Extra dents for aerodynamics. 😬 oh and missing the front air dam. Stock tires. 257k miles. Runs around at roughly 40mph most the time. Some in town.

 

[[memphis]]

A local unicorn popped up today in FBM. Wish I had some cash laying around… I know it’s a 3/4t and this thread is about shitty half tons but fawk it

 

[DMG]

i think most of my miles were put on a 2v v10. but does the 3v also need to be unchoked at the y pipe? later v10 is also very comparable in price ballpark with 8.1 trucks.

And in any event, the 6.xl triton v10 doesn't compare to the 8.1's tabletop-like torque curve:

I don't know fords encyclopedically so for the class which v10's/ year/chassis have how many valves and autos with 4/5/6 speeds? ( as i recall 6 speed v-10 is the very last/ quite rare of the breed.)

The 3v V10/5R110 with 4.10s will run with a 8.1 towing. I had a 5 star tune on mine. I could set the cruise control with 10k behind it. It was a great truck. I sold it when it got rusty, now its pulling a gooseneck stock trailer in WV.

 

[Levigarrett76]

i think most of my miles were put on a 2v v10. but does the 3v also need to be unchoked at the y pipe? later v10 is also very comparable in price ballpark with 8.1 trucks.

And in any event, the 6.xl triton v10 doesn't compare to the 8.1's tabletop-like torque curve:

I don't know fords encyclopedically so for the class which v10's/ year/chassis have how many valves and autos with 4/5/6 speeds? ( as i recall 6 speed v-10 is the very last/ quite rare of the breed.)

3 valve started in 05 with fseries truck, exhaust issue was fixed

 

[Filthy McChevy]

So my coworker with an 07 Chevy 2500 4wd with 6.0/ auto trans is as full of shit as I suspected saying he gets 17 MPG?

Or is it a 6.2? I'm not an "expurt" on them, my newest is a "GMT400" k3500 CCLB 454 auto POS.

 

[KacksterK5]

So my coworker with an 07 Chevy 2500 4wd with 6.0/ auto trans is as full of shit as I suspected saying he gets 17 MPG?

Or is it a 6.2? I'm not an "expurt" on them, my newest is a "GMT400" k3500 CCLB 454 auto POS.

Yeah, nope, I'll refute that all day. Unless it's a GMC Yukon with the 6.2 and AFM. they would do 17 on the highway, right before the AFM blew the lifters out of them.

 

[Filthy McChevy]

Yeah, nope, I'll refute that all day. Unless it's a GMC Yukon with the 6.2 and AFM. they would do 17 on the highway, right before the AFM blew the lifters out of them.

Nope its a Ext cab PU

 

[Ebs]

Work fleet consists of 6.0 2500HD, 6.4 Ram 2500, 6.2 F250...they all get 12-14 mpg.

 

[IowaOffRoad]

I got in a early super duty and grab the 94 taurus shifter in front of the 94 taurus gauge cluster, and the shifts are about as authoritative as in a 94 taurus.

That… is an accurate description

 

[WTF?]

Has anyone in this thread bitched about the offset steering column in the GMT800s yet?

I liked it because it was easy to hold the wheel leaning on the window frame 😂

It’s significantly more pronounced in the 03-06 center console bucket seat trim trucks because they made the center console cartoonishly large as was the trend at the time leading up until 07 tundra crewmax jumped the shark with a literal file box under the center armrest.

Anyhow, the gmt800 seats got 2” narrower and seat cushion centerline pushed further outboard, and the twist it puts in my lurch frame hurts after a while.

 

[WTF?]

So my coworker with an 07 Chevy 2500 4wd with 6.0/ auto trans is as full of shit as I suspected saying he gets 17 MPG?

Or is it a 6.2? I'm not an "expurt" on them, my newest is a "GMT400" k3500 CCLB 454 auto POS.

I think 07 gmt900 6.0 got the 6 speed auto maybe which might be good for another 1.5 mpg, but 17 is pretty likely not within reason.
Although I don’t have any personally known data on that combo.

 

[mjlogan88]

Has anyone in this thread bitched about the offset steering column in the GMT800s yet?

I liked it because it was easy to hold the wheel leaning on the window frame 😂

Never noticed it even after it was pointed out to me.

'95-02 GM interior layout is dialed for me, with a slight preference for the '95-'96

 

[TRINDU]

And i'm not even sure there is an argument that fords autos aren’t better than 4l80 for longevity and durability in a hd pickup towing environment. I’m just not a huge fan of how the shifts feel.

my allison sound is a trip down memory lane to the audible experience of riding around in a schoolbus, again nobody's mistaking this for a lexus, but it grabs gears up and down like it damn well means it .


I got in a early super duty and grab the 94 taurus shifter in front of the 94 taurus gauge cluster, and the shifts are about as authoritative as in a 94 taurus.

You can blame the general public and their candy ass. Rarely can you feel anything made this century 'shift'.

Allison is return to neutral, so the shifting was just jacking off.

You can make a 48RE/4L80/4R100 bang every gear

 

[45acp]

Has anyone in this thread bitched about the offset steering column in the GMT800s yet?

I liked it because it was easy to hold the wheel leaning on the window frame 😂

Yea, the seats are off not the steering column. I've driven a couple different cloth 800's and you're centered like any other vehicle. Leather captains chairs and you're way left. Wife had an '11 Tahoe that did it too.

 

[WTF?]

4wd. 6.0, 4l80, 4.10s, BFG KO2's, 45 psi front, 50 rear, 75 rear when towing. Mobil 1 oil in the rear, mobil 1 in the engine, 50k on plugs, I think I put wires on it around then, AC delco air filter, 87 Octane tune.

I've owned since Jan 1, 2008, it has 23,525 miles on it when I signed the paperwork, now has 224,500 on it and I've put.... a set of unit bearings in it, all new brakes and calipers, rear axle flange seal started leaking where it bolts to the hub about 7 years ago, fixed that, couple sets of u joints, jb welded the pump rub leak about 3 months ago, have parts, need to fix properly, torsion bar mount bushing on drivers side is ready for replacement, brake lines, fuel lines, oil pressure sensor because I gigged it when replacing fuel lines, muffler replaced with Walker stock muffler, AC compressor and condenser, water pump, steering pump because I thought it was whining but it wasn't, passenger engine mount, shocks.

So, it's all stock and the wear items have been replaced. No truck this old is repair free. The whole time I've owned it, after tuning, without towing, driving around normally, it has gotten 14ish.

I guess, if you insist…
I suppose I might not call you out as a liar if you told me you had a stock one that kissed 13 mpg ones in a while, but it would definitely raise an eyebrow.

 

[WTF?]

You can blame the general public and their candy ass. Rarely can you feel anything made this century 'shift'.

Allison is return to neutral, so the shifting was just jacking off.

You can make a 48RE/4L80/4R100 bang every gear

Yeah again stock for stock is the most reasonable basis for comparison. tuned trucks can certainly be different animals.

and a 4l60 will bang them shifts out once the trans gets above normal operating temp.