accurate data logging...
Thread Starter
MBWorld Fanatic!
Joined: Dec 2011
Posts: 4,066
Likes: 37
From: Folsom, CA
2005 E55 AMG
accurate data logging...
Looking to optimize my Dash Command setup
There are a few variables to really dial in the car...
Here are the settings I used: (some auto-generated by DC)
OBD-II Settings:
ISO/KWP Keep Alive Interval (ms): 3000
OBD-II Response Timeout (ms): 200
Disable OBD-II Mode $09 Support: OFF (default)
Minimum Bus Idle Time: 0 (default)
Specifications:
Fuel Tank capacity: 21.1 gal (US)
Engine Displacement: 5439cc
Volumetric Efficiency: 70% (estimated between 65-80)
MAF PID:*
MAP PID:*
Lambda (actual) PID:*
Lambda (commanded) PID:*
Tire Size Specification: 275/35/R18
Final Drive Ratios: 3.59;2.19;1.41;1;.83
Wheel Circumference: 80 in
Curb Weight: 4200lb (est)
Additional Weight:
Drag Coefficients: .29
Frontal Area:
Maximum Engine Speed: 6500 rpm
Minimum Engine Speed: 650 rpm
Shift Point: (most economical shift rpm?)
Fuel Type: Gasoline
Tire rolling resistance coefficient: .013 (recommeded)
Speed Correction:
* This is used to enter an external sensor PID that was not factory installed on the vehicle. If you are not sure, do not enter anything here.
any recommendations for Frontal Area, shift rpm?
also, does the Eurocharged tune modify redline?
There are a few variables to really dial in the car...
Here are the settings I used: (some auto-generated by DC)
OBD-II Settings:
ISO/KWP Keep Alive Interval (ms): 3000
OBD-II Response Timeout (ms): 200
Disable OBD-II Mode $09 Support: OFF (default)
Minimum Bus Idle Time: 0 (default)
Specifications:
Fuel Tank capacity: 21.1 gal (US)
Engine Displacement: 5439cc
Volumetric Efficiency: 70% (estimated between 65-80)
MAF PID:*
MAP PID:*
Lambda (actual) PID:*
Lambda (commanded) PID:*
Tire Size Specification: 275/35/R18
Final Drive Ratios: 3.59;2.19;1.41;1;.83
Wheel Circumference: 80 in
Curb Weight: 4200lb (est)
Additional Weight:
Drag Coefficients: .29
Frontal Area:
Maximum Engine Speed: 6500 rpm
Minimum Engine Speed: 650 rpm
Shift Point: (most economical shift rpm?)
Fuel Type: Gasoline
Tire rolling resistance coefficient: .013 (recommeded)
Speed Correction:
* This is used to enter an external sensor PID that was not factory installed on the vehicle. If you are not sure, do not enter anything here.
any recommendations for Frontal Area, shift rpm?
also, does the Eurocharged tune modify redline?
Last edited by Toadster; Aug 31, 2012 at 10:14 AM.
MBWorld Fanatic!
Joined: Mar 2011
Posts: 1,879
Likes: 22
From: Orange County, CA.
one car at a time
nice pics, but remember when logging from OBD2, as you select more parameters it will slow the data transfer down significantly....i try to log just 2 or 3 items from OBD2...
Thread Starter
MBWorld Fanatic!
Joined: Dec 2011
Posts: 4,066
Likes: 37
From: Folsom, CA
2005 E55 AMG
there are a TON of options behind the scenes - right now, doing good with IATs
MBWorld Fanatic!
Joined: Mar 2011
Posts: 1,879
Likes: 22
From: Orange County, CA.
one car at a time
Todd - What IATs are you seeing ? Today I was a bit inland (only 5 or so miles from the ocean) and it was ~100 out and my IATs went from ~115 to ~160 on several 3rd gear full pulls....Crazy....
Trending Topics
MB World Stories
The Best of Mercedes & AMG
7 Craziest Things AMG Gas Ever Built
Verdad Gallardo
New Electric Mercedes-AMG GT 4-Door Coupe Unveiled: 10 Things You Need to Know
Verdad Gallardo
6 Mercedes Models That Did NOT Age Well (But Are Somehow Still Cool)
Verdad Gallardo
Manual Mercedes? 6 Times Sindelfingen Let Drivers Have All The Fun
Verdad Gallardo
Mercedes SLR McLaren 722 S Is Extremely Rare Example Modified by McLaren
Verdad Gallardo
8 Classic Boxy Mercedes Designs That Have Aged Like Fine Wine
Verdad Gallardo
Flawlessly Restored Mercedes 190E Evo II Heads to Auction
Verdad Gallardo
Electric Mercedes C-Class Unveiled: 11 Things You Need to Know
Verdad Gallardo
Mercedes EQS Gets A Major Update: Everything You Need to Know
Verdad Gallardo
Thread Starter
MBWorld Fanatic!
Joined: Dec 2011
Posts: 4,066
Likes: 37
From: Folsom, CA
2005 E55 AMG
does anyone know the frontal area (coefficient of drag)? I saw somewhere on the site that the E63 is .29 - is the E55 different?
The E-Class Coupe has the distinction of being the most aerodynamic production car ever marketed, according to the automaker, with the lowest drag coefficient on record.
what about the Shift Point: (most economical shift rpm?)
The E-Class Coupe has the distinction of being the most aerodynamic production car ever marketed, according to the automaker, with the lowest drag coefficient on record.
what about the Shift Point: (most economical shift rpm?)
Thread Starter
MBWorld Fanatic!
Joined: Dec 2011
Posts: 4,066
Likes: 37
From: Folsom, CA
2005 E55 AMG
wait - I found it...
the E55 claims a slippery 0.28 coefficient of drag.
Read more: http://www.motortrend.com/roadtests/...#ixzz23lkQKox2
the E55 claims a slippery 0.28 coefficient of drag.
Read more: http://www.motortrend.com/roadtests/...#ixzz23lkQKox2
Thread Starter
MBWorld Fanatic!
Joined: Dec 2011
Posts: 4,066
Likes: 37
From: Folsom, CA
2005 E55 AMG
as Jim suggested above - the specs for drive ratios is the gear ratio (1 through 5) multiplied by the final drive ratio (stock is 2.65)
so the E55 ratios should be:
Gear x Final Drive = Ratio
3.59 x 2.65 = 9.51
2.19 x 2.65 = 5.80
1.41 x 2.65 = 3.74
1.00 x 2.65 = 2.65
0.83 x 2.65 = 2.12
so the E55 ratios should be:
Gear x Final Drive = Ratio
3.59 x 2.65 = 9.51
2.19 x 2.65 = 5.80
1.41 x 2.65 = 3.74
1.00 x 2.65 = 2.65
0.83 x 2.65 = 2.12
MBWorld Fanatic!
Joined: Mar 2011
Posts: 1,835
Likes: 12
From: The Granite State
.
as Jim suggested above - the specs for drive ratios is the gear ratio (1 through 5) multiplied by the final drive ratio (stock is 2.65)
so the E55 ratios should be:
Gear x Final Drive = Ratio
3.59 x 2.65 = 9.51
2.19 x 2.65 = 5.80
1.41 x 2.65 = 3.74
1.00 x 2.65 = 2.65
0.83 x 2.65 = 2.12
so the E55 ratios should be:
Gear x Final Drive = Ratio
3.59 x 2.65 = 9.51
2.19 x 2.65 = 5.80
1.41 x 2.65 = 3.74
1.00 x 2.65 = 2.65
0.83 x 2.65 = 2.12
Toad,
Got the PLX WiFI last night but can't get it to sync with DashCommand
I did the PLX setup using 192.169.0.11 subnet 255.255.255.0
Is there an obscure setup area in DashCommand to setup the wifi connection?
-G
Thread Starter
MBWorld Fanatic!
Joined: Dec 2011
Posts: 4,066
Likes: 37
From: Folsom, CA
2005 E55 AMG
(not being dumb, but I didn't realize there was a power switch)
I think in the directions you can setup the application to be 192.168.0.10
be sure to set the port to 35000
MBWorld Fanatic!
Joined: Mar 2011
Posts: 1,835
Likes: 12
From: The Granite State
.
The directions said to start the car before plugging it in. Once I plugged it in the face lights up and I see it as an available WiFi device on my iPhone.
Pretty confident that the WiFi part is working. In dashCommand there seems to be an area in Setup (OBD-II data port) where you can choose either "auto" or custom IP. Default was auto, but I think maybe I should be confiding the IP and port # manually in that area? Is that how yours is?
-G
Pretty confident that the WiFi part is working. In dashCommand there seems to be an area in Setup (OBD-II data port) where you can choose either "auto" or custom IP. Default was auto, but I think maybe I should be confiding the IP and port # manually in that area? Is that how yours is?
-G
MBWorld Fanatic!
Joined: Mar 2011
Posts: 1,835
Likes: 12
From: The Granite State
.
Weird. I just noticed that my VIN was automatically logged under vehicle info.
Obviously the connection worked at least briefly at one point. How much of that vehicle data has to be filled in beforehand?
Obviously the connection worked at least briefly at one point. How much of that vehicle data has to be filled in beforehand?
Thread Starter
MBWorld Fanatic!
Joined: Dec 2011
Posts: 4,066
Likes: 37
From: Folsom, CA
2005 E55 AMG
Thread Starter
MBWorld Fanatic!
Joined: Dec 2011
Posts: 4,066
Likes: 37
From: Folsom, CA
2005 E55 AMG
with my new FT-P Heat Exchanger and a new I/C (Bosch) pump - I can generally have IATs ~10*F hotter than ambient (so far that's what I've seen)
Member
Joined: Dec 2011
Posts: 82
Likes: 0
CLS55
Toad, I am in the process of doing the same tweaking for better readings. Firstly, double check your tire circumf...
Also, have you had any luck getting torque or HP readings? If so, do you feel those could be reliable figures, or just calculations based on data entered x phones onboard accelerometer?
I just got this app, and the newest china-made wifi device, and am really looking forward (or at least hoping) to this app providing accurate and valuable data.
Thanks, and best,
Lastly, ditto the port #, and ".10" for the IP addy.
Also, have you had any luck getting torque or HP readings? If so, do you feel those could be reliable figures, or just calculations based on data entered x phones onboard accelerometer?
I just got this app, and the newest china-made wifi device, and am really looking forward (or at least hoping) to this app providing accurate and valuable data.
Thanks, and best,
Lastly, ditto the port #, and ".10" for the IP addy.
MBWorld Fanatic!
Joined: Mar 2011
Posts: 1,879
Likes: 22
From: Orange County, CA.
one car at a time
Generally one see IATs ~20 - 25 degrees above ambient after driving for a bit (cruising), but once you go WOT you will see the IATs climb high. I cannot speak for Todd's setup, but with mine on repeated back to back 3rd gear pulls, with ambient ~93 my IATs will go above 165. For just one pull they will stay below 140.
Thread Starter
MBWorld Fanatic!
Joined: Dec 2011
Posts: 4,066
Likes: 37
From: Folsom, CA
2005 E55 AMG
Toad, I am in the process of doing the same tweaking for better readings. Firstly, double check your tire circumf...
Also, have you had any luck getting torque or HP readings? If so, do you feel those could be reliable figures, or just calculations based on data entered x phones onboard accelerometer?
I just got this app, and the newest china-made wifi device, and am really looking forward (or at least hoping) to this app providing accurate and valuable data.
Thanks, and best,
Lastly, ditto the port #, and ".10" for the IP addy.
Also, have you had any luck getting torque or HP readings? If so, do you feel those could be reliable figures, or just calculations based on data entered x phones onboard accelerometer?
I just got this app, and the newest china-made wifi device, and am really looking forward (or at least hoping) to this app providing accurate and valuable data.
Thanks, and best,
Lastly, ditto the port #, and ".10" for the IP addy.
yes - I modified to 80" for circumerence - it's close, but not 'perfect'
I haven't played much with it lately, just been watching IAT and timing
MBWorld Fanatic!
Joined: Apr 2009
Posts: 1,258
Likes: 5
E55
Those screen shots sure look pretty, but your real life data logs leave a lot to be desired.
Just checking the three you took while dynoing, linked below. The first two scans, your IAT never refreshed so you had zero data points for IAT. The third scan, it refreshed at the start of the pull only. The other parameters refreshed at a better rate, but still incomplete data. Were you possibly logging more than the four parameters shown?
https://mbworld.org/forums/5334334-post34.html
Just checking the three you took while dynoing, linked below. The first two scans, your IAT never refreshed so you had zero data points for IAT. The third scan, it refreshed at the start of the pull only. The other parameters refreshed at a better rate, but still incomplete data. Were you possibly logging more than the four parameters shown?
https://mbworld.org/forums/5334334-post34.html
Thread Starter
MBWorld Fanatic!
Joined: Dec 2011
Posts: 4,066
Likes: 37
From: Folsom, CA
2005 E55 AMG
Those screen shots sure look pretty, but your real life data logs leave a lot to be desired.
Just checking the three you took while dynoing, linked below. The first two scans, your IAT never refreshed so you had zero data points for IAT. The third scan, it refreshed at the start of the pull only. The other parameters refreshed at a better rate, but still incomplete data. Were you possibly logging more than the four parameters shown?
https://mbworld.org/forums/5334334-post34.html
Just checking the three you took while dynoing, linked below. The first two scans, your IAT never refreshed so you had zero data points for IAT. The third scan, it refreshed at the start of the pull only. The other parameters refreshed at a better rate, but still incomplete data. Were you possibly logging more than the four parameters shown?
https://mbworld.org/forums/5334334-post34.html
https://docs.google.com/open?id=0B0b...WVyM3I2S2VoejQ
