Look what followed us home from the Cadillac dealer.

[69hurstolds]

Yep, 360 HP, 405 lb-ft of torque. Out of a 3.0. Her "old" XT5 had the 3.6 with 305 HP, but it was pulling the wagon instead of pushing it.

Trying to wrap my head around this "electronic" limited-slip rear end.

I'm not sure about being able to do much about the factory tune. There's something going on with Caddy that is making it one with technology from the cloud. Haven't read into that too much just yet but it appears it's going to be a real PITA to get inside and start futzing around in there.

They already locked everyone out of the new trucks. There's no easy way to do a tune on one. Unless I've missed something, even Diablo can't even come up with a hand held canned tune for the 6.2 trucks--- yet.

 

[ssn696]

GM got John Deere’d.

 

[Supercharged111]

Yep, 360 HP, 405 lb-ft of torque. Out of a 3.0. Her "old" XT5 had the 3.6 with 305 HP, but it was pulling the wagon instead of pushing it.

Trying to wrap my head around this "electronic" limited-slip rear end.

I'm not sure about being able to do much about the factory tune. There's something going on with Caddy that is making it one with technology from the cloud. Haven't read into that too much just yet but it appears it's going to be a real PITA to get inside and start futzing around in there.

They already locked everyone out of the new trucks. There's no easy way to do a tune on one. Unless I've missed something, even Diablo can't even come up with a hand held canned tune for the 6.2 trucks--- yet.

Which ones exactly? Last I heard you could tune the trucks, but that it's a process.

 

[Supercharged111]

Yep, 360 HP, 405 lb-ft of torque. Out of a 3.0. Her "old" XT5 had the 3.6 with 305 HP, but it was pulling the wagon instead of pushing it.

Trying to wrap my head around this "electronic" limited-slip rear end.

I'm not sure about being able to do much about the factory tune. There's something going on with Caddy that is making it one with technology from the cloud. Haven't read into that too much just yet but it appears it's going to be a real PITA to get inside and start futzing around in there.

They already locked everyone out of the new trucks. There's no easy way to do a tune on one. Unless I've missed something, even Diablo can't even come up with a hand held canned tune for the 6.2 trucks--- yet.

Which ones exactly? Last I heard you could tune the trucks, but that it's a process.

 

[fleming442]

My buddy just paid an azzload of money to get a tune in his '19 'vette. I think HPT is getting $2500 for unlocked computers, then you need $2-3,000 worth of credits and someone you trust with your investment.

 

[69hurstolds]

My buddy just paid an azzload of money to get a tune in his '19 'vette. I think HPT is getting $2500 for unlocked computers, then you need $2-3,000 worth of credits and someone you trust with your investment.

Exactly. Anything's possible when you throw an azzload of money at it. You can take that 5 grand and build an LS engine and swap it!! 🙂

 

[69hurstolds]

Which ones exactly? Last I heard you could tune the trucks, but that it's a process.

I know the 2020 6.2L like mine is locked. At least it was last I heard. And the diesel guys were grumbling the same thing, although I admit I've never paid attention to their woes since it didn't concern me. There are reported work arounds for around $3000, like buying an unlocked PCM (TCMs are still locked last I heard) and then another pile of cash on top of that for the tunes from HP Tuners to custom tune it, as they have someone who knows the DI programming, but to me that's more trouble than it's worth and expensive as crap to do all that for what, 25 or so hidden HP? And expensive is what a tune SHOULDN'T be. Even if you have HP Tuners program to do it yourself, you'd need the latest interface with HP Tuners and will need GM Service tools to do it. SO...that leaves me out because I don't care to invest in any of that stuff. HP Tuners are the only ones to date that have cracked the ECM code.

Recently a couple of places like Diablo ($500) and White Audio and Media Services, aka WAMS ($300) have busted into the BCM's and made stuff tweakable where stuff like speed limiters, throttle sensitivity, tire sizes, DFM (very welcome for this), and auto stop hang out. You can have WAMS reprogram your BCM or rent their tool to do it, but it releases no hidden HP. Diablo is a piggyback unit to the BCM. This actually is more where I would be interested because I don't like some of the "features", especially DFM that can't be normally turned off. And unless the dealership checks your top speed history, it leaves no footprint because it doesn't do anything to the ECM.

But I digress. I haven't been following any of this tuning stuff for the new cars lately because, well, it's expensive if you can, and not worth the $$ for what you get. It's like an Arby's beer batter fish sandwich. Looks and tastes good, but for nearly 7 bucks, it's not as tasty as the 2 for $5 beef n cheddar deal.

And like I said, something about Cadillac and their tuning ability, or NON-tuning abilities going by way of some setup like OnStar. Remote updates from GM of the engine software and all that jazz as tuning so they can do mass upgrades to the engine software instead of bringing cars back to the dealer. I read something about it a little while back and can't recall if it's already here or it's coming for 2021, but I don't know how true that is. I can't find it again. I read it in a blurb about the new CT5-V blackwing that's coming soon. Magnesium wheels... while cool AF, just hope they don't catch fire. You CANNOT put the fire out with water.

 

[fleming442]

Oh, and don't forget: once you install the unlocked PCM and TCM, you have to have someone with GM access capabilities (think Tech II brick) transfer the security (fobs) into the new 'puter. Otherwise, you're dead in the water.

 

[Supercharged111]

My buddy just paid an azzload of money to get a tune in his '19 'vette. I think HPT is getting $2500 for unlocked computers, then you need $2-3,000 worth of credits and someone you trust with your investment.

Oh, and don't forget: once you install the unlocked PCM and TCM, you have to have someone with GM access capabilities (think Tech II brick) transfer the security (fobs) into the new 'puter. Otherwise, you're dead in the water.

I figured it was like this for all the new new. It's not unpossible, but becoming cost prohibitive. Years ago GM declared this their "intellectual property". If you're not free to manipulate it, do you truly own it?

 

[Wheelspinner]

I have a CTS wagon, only way it would EVER leave is if I find a CTS-V Wagon/coupe with a 6 speed.