What changes from the tune? Boost, Fuel? I'm not looking for what you think changed. I want to know what exactly changed based on data, not seat of the pants evaluation.
Has anyone data logged before and after doing a Malone tune?
Lars_NM
1 - 20 of 50 Posts
2010 Touareg TDI, 40mm lift, 32" 255/75R17 tires, sway bar delete, Hitch mount full size spare.
Joined
·
476 Posts
What changes from the tune? Boost, Fuel? I'm not looking for what you think changed. I want to know what exactly changed based on data, not seat of the pants evaluation.
Not gonna happen... I tried long ago to get our users to play.... no bites
www.clubtouareg.com
Looking for a Tuned\Deleted (CNRB) log if anyone wants...
If anyone has a Tuned and\or Deleted CNRB and VCDS, I'd be interested in seeing some values from a log. Let me know if you want to share, and I can help guide you on how to log what I'm after. These are the MVBs I'm looking for IDE00021 - Engine RPM IDE00190 - Charge air pressure: specified...
www.clubtouareg.com
I can give you the after information but not the before. I’m Stage 1 Tunezilla, DPF and SCR delete. CNRB
2010 Touareg TDI, 40mm lift, 32" 255/75R17 tires, sway bar delete, Hitch mount full size spare.
Joined
·
476 Posts
Well you got 10 pages of discussion. That's pretty good. I'll collect that data for you. I have a CATA but I don't think there would be much difference.Not gonna happen... I tried long ago to get our users to play.... no bites
Looking for a Tuned\Deleted (CNRB) log if anyone wants...
If anyone has a Tuned and\or Deleted CNRB and VCDS, I'd be interested in seeing some values from a log. Let me know if you want to share, and I can help guide you on how to log what I'm after. These are the MVBs I'm looking for IDE00021 - Engine RPM IDE00190 - Charge air pressure: specified...
I've collected:
| Group 1 - Field 0 | Group 1 - Field 1 | Group 1 - Field 2 | Group 1 - Field 3 | Group 10 - Field 0 | Group 10 - Field 2 | Group 15 - Field 1 | Group 20 - Field 3 | Group 21 - Field 3 | ||
| Engine Speed - (G28) | Injection Quantity | High Fuel Pressure - (actual) | Coolant - Temperature (G62) | Mass Air Flow - (actual) | Boost Pressure - (actual) | Boost Pressure - (actual) | Engine Torque - (actual) | High Fuel Pressure - Control Valve | Quantity Measuring - Control Valve | |
| /min | mg/str | bar | °C | mg/str | mbar | PSI | Nm | % | % | Air/Fuel Ratio |
PSI and Air/Fuel Ratio are calculated. Have you changed your thoughts on what you want collected since your original post?
I'm still collecting and validating data. At this point nothing really stands out as to what the Malone tune does. Maximum boost (24psi), and fuel (73mg/str), and pressure (1960bar) seem unchanged. I have only looked at max min values at this point with data collected at reg. speed.
I'd be curious to see both EGTs and Boost before and after. I could collect pre-tune CATA data that would align well with Lars's post tune as we have nearly the same vehicle. I've considered doing it but am worried it runs the EGTs too high.
Hah, I read boost out over OBDII and it peaks at 50psi. I've long suspected the reading I'm seeing was off by some integer multiplier, sounds like probably 2x.
Joined
·
3,362 Posts
Nope.... what I was after was mentioned in my post and it wasn't complicated.
Joined
·
9,470 Posts
You make power with fuel, timing and air in a diesel. The end. What exactly are we trying to accomplish with this thread?
That's weird... I always thought sensors measured stuff
Joined
·
3,362 Posts
AI supremacy. 🤔
Hmmmm.... the best thing about tuning a diesel is getting to runs tons of boost without worrying about predetonation. Keeping it lean with more boost means you actually make power from the fuel instead of turning it into abrasive soot that clogs your rings, sandblasts the cylinders, and getting sky high EGTs.
Joined
·
9,470 Posts
Thed
Timing and fueling make the biggest difference in these motors with stock turbo.
These turbochargers are TINY. they're already out of their efficiency zone in stock form, much less when tuned.
Timing and fueling make the biggest difference in these motors with stock turbo.
Yeah, I guess I'm used to 80s turbocharged vehicles where everything had massively oversized turbos with the boost set as low as possible from the factory. They didn't have intercoolers, and didn't have a lot of field data yet for if small engines could survive boost.
Joined
·
9,470 Posts
100 percent agree. Heck, most German cars are still coming under boosted from the factory but not the Touareg. They're off map and running warm even stock. There are European options for bigger turbos but not a ton of power to be made, easily, for the 3.0 TDI
2010 Touareg TDI, 40mm lift, 32" 255/75R17 tires, sway bar delete, Hitch mount full size spare.
Joined
·
476 Posts
I'm just used to PSI for boost so that's converted from bar.
I haven't found how to data log the lambda sensor... air fuel ratio is calculated from mg of air and mg of fuel.
My analysis so far
With a stock tune but full emissions delete, max exhaust temp is 856c
in order to attach I renamed it from .csv to .txt
2010 Touareg TDI, 40mm lift, 32" 255/75R17 tires, sway bar delete, Hitch mount full size spare.
Joined
·
476 Posts
full emissions delete stock tune I am seeing EGT's of 856c
you can keep the tune stock with an emissions delete, or even do a partial delete like delete EGR and SCR but keep DPF. I have not heard anybody doing that but I think it makes complete sense. DPF's do better with high EGT's to burn off the carbon. EGR reduces EGT's (EGR is disabled during regens). I don't think SCR has any negative effect on EGT's or fuel ratio, but with high EGT's you will use allot more DEF. So deleting EGR (which we all hate) helps with the DPF carbon burn off.
2010 Touareg TDI, 40mm lift, 32" 255/75R17 tires, sway bar delete, Hitch mount full size spare.
Joined
·
476 Posts
remember you are reading absolute pressure not relative pressure, so it will be 15psi high.
2010 Touareg TDI, 40mm lift, 32" 255/75R17 tires, sway bar delete, Hitch mount full size spare.
Joined
·
476 Posts
I didn't see any change in max boost or max fuel, but they could be changing the fuel delivery curve between min and max which I wouldn't have seen in my simplistic analysis.
1 - 20 of 50 Posts
-
?
-
?
-
?
-
?
-
?
-
?
-
?
-
?
-
?
-
?
-
?
-
?
-
?
-
?
-
?
-
?
-
?
-
?
-
?
-
?
