Jump to content

6.6L programmer

Snorat

By Snorat
in 6.6L Gas V8 (L8T)

 Share

Recommended Posts

  • Replies 38
  • Created
  • Last Reply

Top Posters In This Topic

Popular Days

Top Posters In This Topic

Popular Days

Popular Posts

davester
davester

It's my understanding that it's so expensive now (vs getting older trucks tuned) because the ECM is encrypted, and not many people have figured out how to get around the encryption, so prices are high

Ray Pickle
Ray Pickle

The issue as already stated is encryption.  There are plenty of tuners out there, just none that have the know how and/or capital to crack G.M.'s encryption. They're may be some truth to cost analysis

nick112288
nick112288

Which is why they need to either bring back 4.10s, give it a competitive transmission, or release the rumored big block.    Or best of all, all 3 available in a truck!

CamGTP Senior Enthusiast

CamGTP

Posted
Posted (edited)

Nothing yet.

 

Expect it to cost a ton of money if something does come on the market. It already costs a minimum of $1,900 just to tune a 2019+ half ton truck.

 

Most you can do right now seems to be the pedal monster for improved throttle response. Not sure if that works on the 6.6 gas trucks yet.

Edited by CamGTP
Snorat New Member

Snorat

Posted
  • Author
Posted

It will be interesting to see what kind of hp and torque numbers they can gain on this engine with premium gas

nick112288 Enthusiast

nick112288

Posted
Posted
8 hours ago, CamGTP said:

Nothing yet.

 

Expect it to cost a ton of money if something does come on the market. It already costs a minimum of $1,900 just to tune a 2019+ half ton truck.

 

Most you can do right now seems to be the pedal monster for improved throttle response. Not sure if that works on the 6.6 gas trucks yet.

Only thing I can surmise is there just isn't the market.

 

Reputable Tuner with 5 tunes for the new 7.3 WITH 10 speed is under $650

 

That's a brand new engine and transmission that several companies have figured out how to tune for well under $1,000.

 

GM has a new engine but very familiar transmission and no one has figured out a tuner?

 

Again I think it's they don't believe profit to do it is there.

davester Senior Enthusiast

davester

Posted
Posted

It's my understanding that it's so expensive now (vs getting older trucks tuned) because the ECM is encrypted, and not many people have figured out how to get around the encryption, so prices are high for it.

  • Like 1
MORSNO Enthusiast

MORSNO

Posted
Posted

The companies that made tunes that mattered have stopped, the government moved in on them and they have stopped.  Now you'll find things that do little things like throttle response or air intake and exhaust, however the factory systems are monitoring this and make adjustments to offset the benefits.  No easy programming left.

Ray Pickle Enthusiast

Ray Pickle

Posted
Posted

The issue as already stated is encryption.  There are plenty of tuners out there, just none that have the know how and/or capital to crack G.M.'s encryption. They're may be some truth to cost analysis isn't conductive to the investment needed.

  • Like 1
  • 1 month later...
SierraHD17 Senior Enthusiast

SierraHD17

Posted
Posted (edited)

Its encryption and honestly let's be real here... who buys these trucks mostly?  Fleets.  There is no care for custom tuning with fleet operators.  It's like the 6 liter with the e78 ecm since 2011.  Yes you can half ass tune them but it's only half ass.  Ask anyone who tries to cam one or run a supercharger etc... Guys that grab L96s for a swap like to toss the e78 in the trash and go for an e38 because it has full tuning support. 

 

I can see guys that swap this 6.6 just using the e92 that the 2014 through 2018 half tons, Camaros and Corvettes use.  

 

You will likely be waiting a very long time for any real tuning for these trucks.  The Ford is not really encrypted, Ford themsleves seem to be driving customization to a degree, and honestly there is a lot more fanfare for the 7.3 anyway.. hence they have tuning.  Ford pushing the 7.3 out as a crate engine with ecm and harness for swap purposes really helps here lol.  

Edited by SierraHD17
  • 2 weeks later...
rblanch Enthusiast

rblanch

Posted
Posted

The Diesel guys are purchasing unlocked ecm's to tune their engines for emission removal. Its about 2,500.00 plus new exhaust on the Diesels. I don't think there would be enough benefit for a gas truck. Diesels gain around 100 HP. 

  • 2 weeks later...
L8T Enthusiast

L8T

Posted
Posted (edited)

This engine is a good candidate for the hot rod crowd. This is where the tuning if it ever comes will be driven from. 

Edited by L8T
nick112288 Enthusiast

nick112288

Posted
Posted

I find myself leaning more towards the Chevy but man the stuff that is happening with the 7.3 is just impressive! 

 

What's funny is doing some googling you see before either engine was released most places were speculating the GM 6.6 would be the engine seeing all the aftermarket support. I assume that's because of the LS DNA, but that's clearly not the case!

C/K Man Enthusiast

C/K Man

Posted
Posted

It's just because the GM ECM's are now encrypted, Ford's are not.  L8T 6.6L components like that beautiful forged crank are already in the performance parts catalog and I expect 6.6L crate engines will be available soon.  That doesn't mean much to the 6.6L silverado/Sierra owners that wants to do something to his truck though.

nick112288 Enthusiast

nick112288

Posted
Posted
4 hours ago, C/K Man said:

It's just because the GM ECM's are now encrypted, Ford's are not.  L8T 6.6L components like that beautiful forged crank are already in the performance parts catalog and I expect 6.6L crate engines will be available soon.  That doesn't mean much to the 6.6L silverado/Sierra owners that wants to do something to his truck though.

Which is why they need to either bring back 4.10s, give it a competitive transmission, or release the rumored big block. 

 

Or best of all, all 3 available in a truck!

  • Like 1
L8T Enthusiast

L8T

Posted
Posted
7 hours ago, nick112288 said:

Which is why they need to either bring back 4.10s, give it a competitive transmission, or release the rumored big block. 

 

Or best of all, all 3 available in a truck!

I’d be happy with just a couple or three more gears. Big block and low gears for the dually’s maybe. Maybe as an option for the 1 ton srw’s also. 

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
 Share
Go to topic listing

  • Latest Articles

  • Posts

    • 81mmcat
      Higher oil pressure after DFM shut off

      By 81mmcat · Posted

      Can anyone explain why the oil pressure runs higher after the DFM is shut off?  just installed the Pulsar Lt.
    • fm2176
      New to Me 2010 SLE (Quirks, Issues)

      By fm2176 · Posted

      Thanks!  I figured as such; GM and other manufacturers have used standard parts and harnesses across trim levels and such for decades.  I pulled the blank accessory cover off of my commuter van (a 2016 or so Chevy 15-passenger) years ago and found the plug for a USB outlet.  It wasn't connected to anything, though (I tried swapping in an outlet from another van).  I was a GM Tech years ago (late-90s) and was pretty familiar with my 2006.  I might be wrong, but I view newer vehicles (pretty much anything made in the past 20 years) as being a lot more plug and play.  Meaning, more unused wires and plugs unless you have the Mack Daddy of vehicles.    
    • Coastie05
      It's Been a Long Time...

      By Coastie05 · Posted

      Welcome back!
    • davester
      New to Me 2010 SLE (Quirks, Issues)

      By davester · Posted

      not all plugs will be used.  gm uses more generic harnesses that support most/all options, and if your truck doesn't have a specfiic option, the plug won't be used (commonly will have a dummy insert in the plug , or it'll be taped up, but some may just be left as is).  But it's sldo possible some p.o. has installed the wrong/cheaper parts that aren't correct for your vehicle...
    • fm2176
      New to Me 2010 SLE (Quirks, Issues)

      By fm2176 · Posted

      First off, I'm not trying to just get easy advice/fixes for the issues I've noticed so far.  I'll be combing through the site via searches and such, and if past experiences are any indication, should find what I need.  For the sake of conversation, though, I figured I'd post the handful of things I've noticed in the 12 hours since buying my 2010 SLE CCSB.     Indicator lights: Airbag and TPMS.  The tire pressures aren't reading for any of the wheels, so I'm pretty certain the sensors were either removed, are damaged, or are otherwise inoperable.  I used to mount and balance tires 25 years ago but am pretty much ignorant when it comes to TPMS.  My 2006 didn't have the sensors and this might be the fourth vehicle I've owned that does.     Radio: Rear speakers aren't working.  I removed the driver's side rear door panel and checked the speaker and wiring.  I also removed the sill and b-pillar covers to check the wiring.  A few minutes of Google Fu showed that this is potentially a head unit issue.    Switches: Power mirrors don't turn left/right.  I ordered replacement driver's door switches that should arrive tomorrow.  The windows and locks work but it was only about $20 for all of them.  The driver's side rear window switch lets the window down but won't put it back up.  I think the passenger rear doesn't work at all.  In the coming days/weeks, I'll break out my multimeter to check all of that.   Unknown wiring harness: There's a box attached to the front driver's side of the engine compartment, right where the second battery shelf is located.  There are three plugs, one of which looks like it fits a standard headlight-style bulb (9007 or similar).  It doesn't look like it's plugged into anything.  I'll do some digging and if I don't see anything elsewhere on the site, post some pictures here.   Unknown plugs on brake booster: There are at least two female plugs on the brake booster that aren't being used.  I think it might be a replacement/aftermarket, so maybe those are used for a different application, as there don't seem to be any unplugged harnesses and no indicator lights are on.   Little squeaks when turning: Sounds almost like a bushing around the bed of the truck.  I'll have to pay close attention as I get more familiar with the truck.   Clunk on acceleration: possibly the infamous drivetrain clunk.  My 2006 had it and I'm just not familiar enough with this truck yet to fully grasp what it is.   Anyway, my apologies for the vague and all over the place post.  This truck is new to me, and it's been four years since I drove my 2006.  With 200k miles, I know I'll need to learn this truck quickly to avoid having any major issues, despite being confident it's got much more life to it.  My 2006 had nearly 320k on it when I parked it (nearly 300k of which I put on the truck), and it was still drivable then, though I suspected the head gasket might have blown.  I'd hoped to have that truck back by now, but it's gone forever, as I detailed in my reintroduction thread.  

  • GM-Trucks.com Clubs

  • Popular Contributors

×
×
  • Create New...