green diesel engineering tune - Page 25 - Jeep Garage - Jeep Forum

Go Back   Jeep Garage - Jeep Forum > Jeep Platform Discussion > Grand Cherokee - WK2 - > 2014+ Jeep Grand Cherokee Ecodiesel 3.0

Reply
 
Thread Tools Display Modes
 
  #289  
Old 08-16-2015, 05:20 PM
BadTA's Avatar
Member
 
Join Date: Dec 2013
Posts: 183
Thanks: 1
Thanked 9 Times in 8 Posts
Rep Power: 15837
BadTA has a reputation beyond reputeBadTA has a reputation beyond reputeBadTA has a reputation beyond reputeBadTA has a reputation beyond reputeBadTA has a reputation beyond reputeBadTA has a reputation beyond reputeBadTA has a reputation beyond reputeBadTA has a reputation beyond reputeBadTA has a reputation beyond reputeBadTA has a reputation beyond reputeBadTA has a reputation beyond repute
Re: green diesel engineering tune

Quote:
Originally Posted by dsljp View Post
Are you all buying your own spare ECM's and sending those in, or are you doing the exchange?

If you're buying your own, do any of you have a link to where you're purchasing from?
GDE will sell you their ecu. Once you receive it, you send your ecu back. Or you can keep both (at a cost).

__________________
Reply With Quote
Sponsored Links
Advertisement
 
  #290  
Old 08-16-2015, 06:02 PM
Member
 
Join Date: Nov 2014
Posts: 49
Thanks: 7
Thanked 3 Times in 3 Posts
Rep Power: 965
dsljp is on a distinguished road
Re: green diesel engineering tune

Quote:
Originally Posted by BadTA View Post
GDE will sell you their ecu. Once you receive it, you send your ecu back. Or you can keep both (at a cost).

Right, sorry I also should've added is it cheaper to purchase your own or use the exchange program?

It's about $1500 to do the exchange with engine braking and regen messages. Of course there's the $650 refund upon receipt of the old ECM.


Sent from my iPhone using JeepGarage
__________________
2014 JGC Diesel 4x4 Limited
Reply With Quote
  #291  
Old 08-16-2015, 06:43 PM
Member
 
Join Date: Mar 2015
Posts: 579
Thanks: 57
Thanked 114 Times in 75 Posts
Rep Power: 1491
farfromovin has a reputation beyond reputefarfromovin has a reputation beyond reputefarfromovin has a reputation beyond reputefarfromovin has a reputation beyond reputefarfromovin has a reputation beyond reputefarfromovin has a reputation beyond repute
Re: green diesel engineering tune

Quote:
Originally Posted by BadTA View Post
Not sure what everyone else is seeing, but thought I'd post my 0-60 time

Wow, that should be dead on too as it comes from OBD-II. I presume you're turning traction control off, revving to 2k or so, and dropping the brake while slamming the gas? That's a great time
__________________
'15 GC 4x4 Summit - GDE Hot Tune, Berger N54 ccv catch can, 4300k Philips HID fogs, VLED TRITON V3 LED brake lights
Reply With Quote
Sponsored Links
Advertisement
 
  #292  
Old 08-16-2015, 07:15 PM
BadTA's Avatar
Member
 
Join Date: Dec 2013
Posts: 183
Thanks: 1
Thanked 9 Times in 8 Posts
Rep Power: 15837
BadTA has a reputation beyond reputeBadTA has a reputation beyond reputeBadTA has a reputation beyond reputeBadTA has a reputation beyond reputeBadTA has a reputation beyond reputeBadTA has a reputation beyond reputeBadTA has a reputation beyond reputeBadTA has a reputation beyond reputeBadTA has a reputation beyond reputeBadTA has a reputation beyond reputeBadTA has a reputation beyond repute
Re: green diesel engineering tune

Quote:
Originally Posted by farfromovin View Post
Wow, that should be dead on too as it comes from OBD-II. I presume you're turning traction control off, revving to 2k or so, and dropping the brake while slamming the gas? That's a great time
Yup. That is what works best. I tried a few other techniques, but 2k dump worked best. I tried feathering the throttle to mitigate wheel spin, but always saw slower times.

Very happy with this tune.

It is also worth pointing out, this matches GDE's claims of 1.5s improvement over stock.
__________________
Reply With Quote
The Following User Says Thank You to BadTA For This Useful Post:
  #293  
Old 08-17-2015, 04:27 PM
akinney's Avatar
Member
My Jeep: 2015 3.0L WK2
 
Join Date: Jan 2015
Location: College Place, WA, USA
Posts: 317
Thanks: 102
Thanked 90 Times in 65 Posts
Rep Power: 16824
akinney has a reputation beyond reputeakinney has a reputation beyond reputeakinney has a reputation beyond reputeakinney has a reputation beyond reputeakinney has a reputation beyond reputeakinney has a reputation beyond reputeakinney has a reputation beyond reputeakinney has a reputation beyond reputeakinney has a reputation beyond reputeakinney has a reputation beyond reputeakinney has a reputation beyond repute
Garage
Re: green diesel engineering tune

Has anyone in Northern California tried HPR diesel with their GDE tune?
__________________
Deep Cherry Red 2015 JGC Ltd EcoDiesel with Beige Interior / ORA II / Lux II / 8.4AN
Mods: DEF injector guard | Mopar splash guards | Green Hornet fuel cap | Fumoto F-106 oil drain valve | aFe Pro Guard 7 engine air filter | Mopar molded running boards | Mopar roof rack cross bars | Mopar rear cargo net | Mopar rear cargo liner | Husky X-Act Contour floor liners | Mopar "Rugged Off-Road" Black & Machined 18x8 wheels
Reply With Quote
  #294  
Old 08-17-2015, 10:30 PM
Member
 
Join Date: Feb 2015
Posts: 98
Thanks: 4
Thanked 19 Times in 17 Posts
Rep Power: 922
Ampt is on a distinguished road
Re: green diesel engineering tune

Quote:
Originally Posted by Roadkill View Post
No, you can't convert an mpg offset to L/100 km unless you have a reference mpg value for the change. As an exercise for the reader, calculate the fuel efficiency improvement (ie. the difference in L/100 km, or gallons/100 miles if you prefer) for improving from 2 mpg to 4 mpg, then do the same for improving from 28 mpg to 30 mpg. What did you find out? I mean, they're both an improvement of 2 mpg, right?
The reverse is also true - you can't calculate an MPG improvement from a L/100Km delta - because you need a reference for the conversion. You can just take the multiplicative inverse of a Distance/Fuel to get Fuel/Distance. Neither one is better than the other lol.
Reply With Quote
  #295  
Old 08-18-2015, 06:27 AM
Senior Member
 
Join Date: Sep 2013
Posts: 1,352
Thanks: 49
Thanked 176 Times in 139 Posts
Rep Power: 17546
Roadkill has a reputation beyond reputeRoadkill has a reputation beyond reputeRoadkill has a reputation beyond reputeRoadkill has a reputation beyond reputeRoadkill has a reputation beyond reputeRoadkill has a reputation beyond reputeRoadkill has a reputation beyond reputeRoadkill has a reputation beyond reputeRoadkill has a reputation beyond reputeRoadkill has a reputation beyond reputeRoadkill has a reputation beyond repute
Re: green diesel engineering tune

Quote:
Originally Posted by Ampt View Post
The reverse is also true - you can't calculate an MPG improvement from a L/100Km delta - because you need a reference for the conversion.
True, but recall that no one except you was claiming that this kind of direct conversion of a delta could be performed between MPG and L/100 km. I presume you also recognize now that these are not the same unit and are actually inverse in principle.

Back on topic, you can directly compare fuel economy improvements in L/100 km without a reference, unlike MPG improvements. Did you do the exercise from my last post? What did you learn from that?

Quote:
Neither one is better than the other lol.
Don't be absurd. Using volume/distance is much simpler for comparing fuel economy improvements in a sane manner. Improving by 2 MPG, say from 8 to 10 MPG, is far more substantial an improvement in fuel economy than improving from 64 to 66 MPG. However, improving, say, 2 L/100 km represents the same absolute fuel consumption improvement if you improve from consuming 3 L/100 km down to to 1 L/100 km or from 100 to 98 L/100 km.

For those of us stuck with the imperial system, 1 L/100 km is roughly equivalent to 0.4 gallons (US)/100 miles (I just round it to 0.5 for ease of mental math while driving). So, if someone informs us that their GDE tune is saving them 1 L/100 km, we can all easily determine how much fuel economy (cost per distance) they have improved. Saying they have improved by 2 MPG is practically useless for assessing improvement in fuel economy, because we can't tell if they improved from 16 to 18 MPG or from 32 to 34 MPG.

All we can tell from hearing "x mpg improvement" by itself without reference values is 1) that their fuel economy improved, and 2) they can travel ~24 gallons*x mpg farther per full tank of fuel than they could before. It says nothing about their absolute fuel consumption improvement, unlike if they had provided a L/100 km delta.

As you can tell, MPG (or KM per L, whatever) is superior if you want to easily calculate the distance one can travel on a tank. That's my guess for why it caught on as our "fuel economy" metric in a large country like the USA whereas the inverse approach (L/100 km) is popular elsewhere where fuel is more expensive and people care about cost per distance. Conversely, it could just be that we as a country chose MPG because it was the most backward way to measure something... that seems to be how the rest of our units were chosen (heh).
Reply With Quote
  #296  
Old 08-18-2015, 07:39 AM
Zhe Wiz's Avatar
Member
My Jeep: 2014 3.0L WK2
 
Join Date: Jun 2013
Location: Central NY - Ithaca
Posts: 645
Thanks: 164
Thanked 113 Times in 77 Posts
Rep Power: 16854
Zhe Wiz has a reputation beyond reputeZhe Wiz has a reputation beyond reputeZhe Wiz has a reputation beyond reputeZhe Wiz has a reputation beyond reputeZhe Wiz has a reputation beyond reputeZhe Wiz has a reputation beyond reputeZhe Wiz has a reputation beyond reputeZhe Wiz has a reputation beyond reputeZhe Wiz has a reputation beyond reputeZhe Wiz has a reputation beyond reputeZhe Wiz has a reputation beyond repute
Re: green diesel engineering tune

Quote:
Originally Posted by MBDiesel View Post
I believe the average displayed on the fuel economy page (the one with the green and blue semicircle gauges) runs the 300 mile rolling average. I've reset both the trip odometer and the fuel economy gauge at a fill up and by the time the tank was empty they were different.
Not in my experience! EVERY time I fill up I reset trip odo B and the fuel economy page. EVERY TIME they have matched exactly at the end and that's with 17,500 miles worth of fill-ups. I use trip A to experiment and it doesn't match up with anything after 300 miles or more.

Die myth DIE!!

And now back to the awesomeness that is the GDE tune!!
__________________
Zhe Wiz

[SIGPIC][/SIGPIC]
Reply With Quote
  #297  
Old 08-18-2015, 10:17 AM
Member
 
Join Date: Feb 2015
Posts: 98
Thanks: 4
Thanked 19 Times in 17 Posts
Rep Power: 922
Ampt is on a distinguished road
Re: green diesel engineering tune

Quote:
Originally Posted by Roadkill View Post
True, but recall that no one except you was claiming that this kind of direct conversion of a delta could be performed between MPG and L/100 km. [SNIP]
You're making this more complicated than it needs to be. An improvement of 2 MPG means that you can go 2 MORE MILES for EVERY GALLON OF FUEL IN YOUR TANK. Saving 2L/100KM means that it takes 2 FEWER LITERS OF FUEL to go 100 KILOMETERS. One sets gallons as the independent variable, one uses distance, but they are both measuring the relationship between distance and fuel. They are the same thing, but with swapped axis. Here's an experiment for you - plot your L/100KM on a piece of graph with a nice thick marker where KM is on the independent axis (X), and L is on the dependent (Y). It's a constant value, so just make a nice straight line so that it goes through 0,0 and then whatever your xL/100Km value is (x, 100). Now, flip your paper over so you're looking at the back side. Your distance will now be your dependent axis (Y), and your fuel will be your independent axis (X). It will literally be the same graph, but with switched axis. All the numbers are still the same!

Also, an improvement from 100L/100KM -> 98L/100KM is far different from 3L/100KM -> 1L/100KM, just like 28MPG -> 30MPG is very different than 1MPG -> 3 MPG. In reality, if you want to talk about improvement, % improvement is the preferred method for conveying the information, since that is applicable in whatever units you want.
Reply With Quote
  #298  
Old 08-18-2015, 10:57 AM
Member
My Jeep: 2014 3.0L WK2
 
Join Date: Apr 2014
Location: Gilbert, AZ
Posts: 174
Thanks: 74
Thanked 32 Times in 24 Posts
Rep Power: 4531
JGCDieselPowered has a reputation beyond reputeJGCDieselPowered has a reputation beyond reputeJGCDieselPowered has a reputation beyond reputeJGCDieselPowered has a reputation beyond reputeJGCDieselPowered has a reputation beyond reputeJGCDieselPowered has a reputation beyond reputeJGCDieselPowered has a reputation beyond reputeJGCDieselPowered has a reputation beyond reputeJGCDieselPowered has a reputation beyond reputeJGCDieselPowered has a reputation beyond reputeJGCDieselPowered has a reputation beyond repute
Re: green diesel engineering tune

Mine is always the same as well.
Reply With Quote
  #299  
Old 08-18-2015, 11:01 AM
Senior Member
 
Join Date: Sep 2013
Posts: 1,352
Thanks: 49
Thanked 176 Times in 139 Posts
Rep Power: 17546
Roadkill has a reputation beyond reputeRoadkill has a reputation beyond reputeRoadkill has a reputation beyond reputeRoadkill has a reputation beyond reputeRoadkill has a reputation beyond reputeRoadkill has a reputation beyond reputeRoadkill has a reputation beyond reputeRoadkill has a reputation beyond reputeRoadkill has a reputation beyond reputeRoadkill has a reputation beyond reputeRoadkill has a reputation beyond repute
Quote:
Originally Posted by Ampt View Post
You're making this more complicated than it needs to be.
Haha, I think you are the only one confused here.

Quote:
An improvement of 2 MPG means that you can go 2 MORE MILES for EVERY GALLON OF FUEL IN YOUR TANK.
Don't overthink this. As I already said, an MPG delta is fine for calculating range improvement. However, as I have repeatedly pointed out, simply saying "improved by x mpg" does nothing to assist fuel economy savings determination without the reference.

Quote:
In reality, if you want to talk about improvement, % improvement is the preferred method for conveying the information, since that is applicable in whatever units you want.
No, actually, conveying the absolute improvement is quite useful. Besides, people aren't even supplying that... simply stating "2 MPG improvement" (or whatever) is basically useless when it comes to discussing fuel economy improvement whereas supplying the L/100 km delta would allow direct calculation of the savings over distance... without any further information required.

Odd that you seem to be repeatedly confused about these concepts.

Try this experiment:
An owner has their fuel economy improve by 4 gallons/100 miles and they drive 10000 miles. How much fuel did they save due to this improvement? (400 gallons, obviously)

Now:
Another owner has their fuel economy improve by 2 MPG. You don't know what their before or after MPG absolute values are. They travel the same 10000 miles. How much fuel did they save? (This is, of course, a trick question because it cannot be answered with the information provided... unlike the other example)
Reply With Quote
  #300  
Old 08-18-2015, 12:45 PM
Member
 
Join Date: Nov 2014
Posts: 83
Thanks: 0
Thanked 65 Times in 27 Posts
Rep Power: 4217
GreenDiesel has a reputation beyond reputeGreenDiesel has a reputation beyond reputeGreenDiesel has a reputation beyond reputeGreenDiesel has a reputation beyond reputeGreenDiesel has a reputation beyond reputeGreenDiesel has a reputation beyond reputeGreenDiesel has a reputation beyond reputeGreenDiesel has a reputation beyond reputeGreenDiesel has a reputation beyond reputeGreenDiesel has a reputation beyond reputeGreenDiesel has a reputation beyond repute
Re: green diesel engineering tune

The GDE tune should return a fuel economy improvement over stock in the 10-15% range. Same in the US or Canada and fuel cetane level is minimal effect on the economy, the bigger difference is the lower BTU content of most bio fuels.

Speaking in mpg or L/100km is fine, the % improvement will be the same. Just use units you are most comfortable with.
Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
2012 SRT8 Dyno Tune VS Stock Tune & Race Gas Mix jim383 Engine Performance/Intakes/Exhausts 2 03-01-2015 05:30 PM
2012 SRT8 Dyno Tune VS Stock Tune & Race Gas Mix jim383 Grand Cherokee SRT - WK2 3 02-25-2015 08:57 AM
CRD diesel mpg= 26 hwy, does the Green Diesel tune increase this? KKielisch Liberty-KJ and KK 5 10-14-2013 08:08 PM
Grern diesel tune vs custom spooling tune fastlane26 Diesel Powered WK Grand Cherokee 2 11-11-2012 10:34 PM

» Premium Vendor Showcase
Powered by vBadvanced CMPS v3.2.3

All times are GMT -5. The time now is 01:17 PM.


Powered by vBulletin® Version 3.8.8
Copyright ©2000 - 2017, vBulletin Solutions, Inc.
Copyright 2012 - JeepGarage.Org
The Jeep Grand Cherokee Owners Community

JeepGarage.org is in no way associated with or endorsed by FCA US LLC. Chrysler, Dodge, Jeep, Ram, Mopar and SRT are registered trademarks of FCA US LLC.