I had no issues with the cruise in v2.5 on an empty truck. I was running 70-73 mph most of the time. When running around town I want to hear that rumble so I rarely get into the turbos.
Get Longevity.V2.50 for the Cummins ISV Now! $420CAD!
Get Longevity.V2.45 Now!
See: IMPORTANT NOTICE if running Longevity!!! - Longevity...
IMPORTANT NOTICE if running Longevity
See: Get V2.41 Now!!! - Longevity Tune for the 5.0L...
Available!!!
See : #308 but basically I can't wait around for the government and lose from every direction. I really want to be the Titan XD ISV Specialist.
Paused
See : Released!!! - Longevity Tune for the 5.0L...
RELEASED!!!
Well a soft release at least, but I am accepting orders. Initial roll-out will be slow, but as the payment processor builds confidence with me as a business that will improve.
See this post.
UPDATE
It's been a long haul and while there is still more work to do to get this tune perfect, it has reached the point where it can be made publicly available.
Jan 31, 2023 this tune will be available for purchase. Please PM me for details.
Original Post follows:
This post will end in mostly a question, but first a story that leads up to that question.
My wife and I bought a 2019 Pro4X brand new at the beginning of 2020. Last month I finally had the spare funds to delete and tune my Titan. I put a 0hp tune on the truck because my goal is fuel economy. By tank calculation I'm seeing the fuel economy has improved from 13.6L/100km to 12.5L/100km. The indicated L/100 has not dipped below 9.9L/100km since removed the dpf, but my best indicated economy was 8.7L/100km with the emissions still intact.
One day I had to leave home while the truck was completely cold after removing the dpf and noticed the turbos hunting really badly, ended up making the engine rpm hunt as well. I hooked the ez lynk back up to the truck and started data logging. 4 psig drive pressure, 1.1psig boost at idle. Peak drive pressure of 61psig. Can see the turbos hunt and in general the ecu seems to be holding boost and excessive drive pressure, and has too much gain on the reaction to throttle position.
My best guess is that they didn't adjust the turbo maps to accommodate the reduction of backpressure and that the egr system no longer needs to see the exhaust pressure above the charge pressure. This is leaving a lot of fuel economy on the table.
The tuner offered to reduce the drive pressure for me. However I have been around engines, hot rodding, etc since I was a small child. I can see how I want the maps to be shaped for the turbos. The problem is I need to play with it and make small adjustments until it's perfect. For my driving conditions I'm convinced I can get the hand calculated average down to 9L/100km. No tuner, no matter how polite is going to want to deal with me asking for small changes everyday for the next three months.
So I thought, okay, I'll register as a technician with ez lynk, they have a calibration profile in their ecu editor, it'll be super simple... play with the map, get it perfect... figure out how to block the codes for the dpf delete... Not so simple. I needed a bin. So, I bought the xcal from Nissan for my ecu part number. Dumped it into ez lynk, the data was all disorganized and clearly something was very wrong with it. I thought okay, maybe I need to convert the intel hex to binary, so I wrote an application that did just that. Ez lynk ecu editor did not recognize that as a valid bin.
Now I've opened up the can of worms known as WinOLS... WinOLS recognized both the xcal and my bin. Great, but it's the demo version so I can't export the bin to see if I send it to the truck via ez lynk... After looking at the cost for a WinOLS license, checksum license and the cost for the davos files for the ISV5.0 I'm starting to understand why tuners are so secretive.
Now my question: If I were to pay all the license fees, forum seller fees, successfully write a tune that gave an average of 9-10L/100km (24-26usmpg) mixed driving, 0 hp/0 tq. increase, gave some additional exhaust braking, and also caused throttle response to more closely resemble a 6.0L psd. Would anyone be willing to pay $200usd for 4 weeks or $300usd for permanent support on ez lynk? This would only ever be a 0/0 tune, I would never release anything I wouldn't run on my own engine and I will not turn up my truck.
See: IMPORTANT NOTICE if running Longevity!!! - Longevity...
IMPORTANT NOTICE if running Longevity
See: Get V2.41 Now!!! - Longevity Tune for the 5.0L...
Available!!!
See : #308 but basically I can't wait around for the government and lose from every direction. I really want to be the Titan XD ISV Specialist.
Paused
See : Released!!! - Longevity Tune for the 5.0L...
RELEASED!!!
Well a soft release at least, but I am accepting orders. Initial roll-out will be slow, but as the payment processor builds confidence with me as a business that will improve.
See this post.
UPDATE
It's been a long haul and while there is still more work to do to get this tune perfect, it has reached the point where it can be made publicly available.
Jan 31, 2023 this tune will be available for purchase. Please PM me for details.
Original Post follows:
This post will end in mostly a question, but first a story that leads up to that question.
My wife and I bought a 2019 Pro4X brand new at the beginning of 2020. Last month I finally had the spare funds to delete and tune my Titan. I put a 0hp tune on the truck because my goal is fuel economy. By tank calculation I'm seeing the fuel economy has improved from 13.6L/100km to 12.5L/100km. The indicated L/100 has not dipped below 9.9L/100km since removed the dpf, but my best indicated economy was 8.7L/100km with the emissions still intact.
One day I had to leave home while the truck was completely cold after removing the dpf and noticed the turbos hunting really badly, ended up making the engine rpm hunt as well. I hooked the ez lynk back up to the truck and started data logging. 4 psig drive pressure, 1.1psig boost at idle. Peak drive pressure of 61psig. Can see the turbos hunt and in general the ecu seems to be holding boost and excessive drive pressure, and has too much gain on the reaction to throttle position.
My best guess is that they didn't adjust the turbo maps to accommodate the reduction of backpressure and that the egr system no longer needs to see the exhaust pressure above the charge pressure. This is leaving a lot of fuel economy on the table.
The tuner offered to reduce the drive pressure for me. However I have been around engines, hot rodding, etc since I was a small child. I can see how I want the maps to be shaped for the turbos. The problem is I need to play with it and make small adjustments until it's perfect. For my driving conditions I'm convinced I can get the hand calculated average down to 9L/100km. No tuner, no matter how polite is going to want to deal with me asking for small changes everyday for the next three months.
So I thought, okay, I'll register as a technician with ez lynk, they have a calibration profile in their ecu editor, it'll be super simple... play with the map, get it perfect... figure out how to block the codes for the dpf delete... Not so simple. I needed a bin. So, I bought the xcal from Nissan for my ecu part number. Dumped it into ez lynk, the data was all disorganized and clearly something was very wrong with it. I thought okay, maybe I need to convert the intel hex to binary, so I wrote an application that did just that. Ez lynk ecu editor did not recognize that as a valid bin.
Now I've opened up the can of worms known as WinOLS... WinOLS recognized both the xcal and my bin. Great, but it's the demo version so I can't export the bin to see if I send it to the truck via ez lynk... After looking at the cost for a WinOLS license, checksum license and the cost for the davos files for the ISV5.0 I'm starting to understand why tuners are so secretive.
Now my question: If I were to pay all the license fees, forum seller fees, successfully write a tune that gave an average of 9-10L/100km (24-26usmpg) mixed driving, 0 hp/0 tq. increase, gave some additional exhaust braking, and also caused throttle response to more closely resemble a 6.0L psd. Would anyone be willing to pay $200usd for 4 weeks or $300usd for permanent support on ez lynk? This would only ever be a 0/0 tune, I would never release anything I wouldn't run on my own engine and I will not turn up my truck.
561 - 580 of 658 Posts
Editor
I'm starting to get nervous. There are a number of very correct values coming out of the api. There is still a ton of procedural work to do to get the editor to the point of actually writing an xcal. I am really looking forward to taking a xcal from my editor, converting it to a binary and uploading that to ez lynk without doing any more editing in their ecm editor.
I know some of you may have been wondering, I know I certainly was... but I found out today, according to the calibration, we have an eight cylinder engine. Just incase you were curious.
I'm currently using the editor to do some research on different parameters that I used to use a text document for. I'm also trying to compare data to make sure the values I'm getting are correct. There are a few that don't make sense and need a bit of investigation.
![Font Screenshot Rectangle Technology Parallel]()
Longevity
I'm getting excited to do some real work on 2.51. I got a small start on it, then ran out of time. Now that I'm making so much progress on the editor, I'm struggling to give it up. Oh my goodness school hours, so hard to concentrate!
Things are going to start moving pretty quickly, or it will feel that way. Longevity phase two is just around the bend. I'm going to spend a little bit more time on the charge air maps before moving onto timing and fuel pressure. I'm hoping to be working on the calibration in my editor by this weekend, next weekend on the far side.
I'm starting to get nervous. There are a number of very correct values coming out of the api. There is still a ton of procedural work to do to get the editor to the point of actually writing an xcal. I am really looking forward to taking a xcal from my editor, converting it to a binary and uploading that to ez lynk without doing any more editing in their ecm editor.
I know some of you may have been wondering, I know I certainly was... but I found out today, according to the calibration, we have an eight cylinder engine. Just incase you were curious.
I'm currently using the editor to do some research on different parameters that I used to use a text document for. I'm also trying to compare data to make sure the values I'm getting are correct. There are a few that don't make sense and need a bit of investigation.
Longevity
I'm getting excited to do some real work on 2.51. I got a small start on it, then ran out of time. Now that I'm making so much progress on the editor, I'm struggling to give it up. Oh my goodness school hours, so hard to concentrate!
Things are going to start moving pretty quickly, or it will feel that way. Longevity phase two is just around the bend. I'm going to spend a little bit more time on the charge air maps before moving onto timing and fuel pressure. I'm hoping to be working on the calibration in my editor by this weekend, next weekend on the far side.
Editor!
Oh so excited! I keep making bits of progress that are very visual. I just had to share that my state is continuing to work correctly and is actually modular and buildable. Now, when I modify a parameter it keeps a history of modifications, which will allow undo. The other thing it does is highlight the modified parameter and changes the highlighting of the manager to show that it has modified parameters.
![Font Rectangle Screenshot Technology Parallel]()
Oh so excited! I keep making bits of progress that are very visual. I just had to share that my state is continuing to work correctly and is actually modular and buildable. Now, when I modify a parameter it keeps a history of modifications, which will allow undo. The other thing it does is highlight the modified parameter and changes the highlighting of the manager to show that it has modified parameters.
I need to make money and I get requests for high performance tunes significantly more than I do for longevity. Yes, I sold out!I drive a lot for work currently so I am liking the longevity but once I get my commuter car.... yes it will be the tire shredding one I want as well lol.
it’s good business sense to offer several different options. I won’t run the tire shredding tune all the time but to have the option is nice
561 - 580 of 658 Posts
