Datalog!!!
MBWorld Fanatic!
Joined: Jul 2007
Posts: 2,000
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From: East Bay, Bay Area
2002 C32, 2012 S550
Hey Josh,
I just recently got the Rev Application for my iPhone and I seem to be running about 20lbs max boost as well.
I have to do more testing and get you more numbers so we can compare. Love the app., it's pretty cool for something on my phone. I can record up to 3 metrics at once, save them to a file, email it to myself and then it opens in Excel.
I just recently got the Rev Application for my iPhone and I seem to be running about 20lbs max boost as well.
I have to do more testing and get you more numbers so we can compare. Love the app., it's pretty cool for something on my phone. I can record up to 3 metrics at once, save them to a file, email it to myself and then it opens in Excel.
Thread Starter
MBWorld Fanatic!
Joined: Oct 2006
Posts: 4,856
Likes: 4
02 C32 AMG
Hey Josh,
I just recently got the Rev Application for my iPhone and I seem to be running about 20lbs max boost as well.
I have to do more testing and get you more numbers so we can compare. Love the app., it's pretty cool for something on my phone. I can record up to 3 metrics at once, save them to a file, email it to myself and then it opens in Excel.
I just recently got the Rev Application for my iPhone and I seem to be running about 20lbs max boost as well.
I have to do more testing and get you more numbers so we can compare. Love the app., it's pretty cool for something on my phone. I can record up to 3 metrics at once, save them to a file, email it to myself and then it opens in Excel.
yah i have to do some recording and mess with the settings to record other stuff like dyno numbers and acceleration stats.....
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Joined: Aug 2006
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From: Keesler AFB, Gulfport, MS
C32 AMG
Drove hard to work today (running late) and logged the run. I recorded rpm, IAT, boost, coolant temp. I was pretty impressed with the temps I had running hard through stop and go traffic. Coolant never went above 192 and IAT sat at 99/100 the entire time and spiked at 111 for a couple seconds. Outside temp was mid 70s which is very cool for down here.
Josh, for your boost setup the manual has a list of what each elevation should be set too. It's a good quick reference. Since I'm at (or below in some cases) sea level mine was at the default which was 14.7 I believe.
Josh, for your boost setup the manual has a list of what each elevation should be set too. It's a good quick reference. Since I'm at (or below in some cases) sea level mine was at the default which was 14.7 I believe.
Last edited by SilverBulletAMG; Aug 31, 2009 at 09:44 AM.
Thread Starter
MBWorld Fanatic!
Joined: Oct 2006
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02 C32 AMG
Drove hard to work today (running late) and logged the run. I recorded rpm, IAT, boost, coolant temp. I was pretty impressed with the temps I had running hard through stop and go traffic. Coolant never went above 192 and IAT sat at 99/100 the entire time and spiked at 111 for a couple seconds. Outside temp was mid 70s which is very cool for down here.
Josh, for your boost setup the manual has a list of what each elevation should be set too. It's a good quick reference. Since I'm at (or below in some cases) sea level mine was at the default which was 14.7 I believe.
Josh, for your boost setup the manual has a list of what each elevation should be set too. It's a good quick reference. Since I'm at (or below in some cases) sea level mine was at the default which was 14.7 I believe.
yah i saw the elevation thing. i wanted to use their method of calibrating it m keeping the motor off and having my sensor detect atmospheric, but i wasnt getting what i considered to be accurate for atm pressure (9.1psi lol)......so i just used my elevation and determined the atmospheric pressure to be 13.89psi (elevation 1295ft)
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Joined: Mar 2004
Posts: 2,073
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From: North NJ
2002 C32 AMG, 2013 GLK 350/4, 2015 E63S AMG Wagon
wow those are some nice IATs! and you havent even split the system either!
yah i saw the elevation thing. i wanted to use their method of calibrating it m keeping the motor off and having my sensor detect atmospheric, but i wasnt getting what i considered to be accurate for atm pressure (9.1psi lol)......so i just used my elevation and determined the atmospheric pressure to be 13.89psi (elevation 1295ft)
yah i saw the elevation thing. i wanted to use their method of calibrating it m keeping the motor off and having my sensor detect atmospheric, but i wasnt getting what i considered to be accurate for atm pressure (9.1psi lol)......so i just used my elevation and determined the atmospheric pressure to be 13.89psi (elevation 1295ft)
I had done some more data-logging today and got up to 19 PSI boost. I Have compared the Zeitronix MAP numbers and OBD2 MAP numbers and they are in sync. With 6 OBD2 params being logged, the Zeitronix MAP readings are much more frequent.
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02 C32 AMG
13.89 PSI at 1295 FT is a bit low. Using a simple method, it should be more like 14.02. Not a big difference, just trying to help.
I had done some more data-logging today and got up to 19 PSI boost. I Have compared the Zeitronix MAP numbers and OBD2 MAP numbers and they are in sync. With 6 OBD2 params being logged, the Zeitronix MAP readings are much more frequent.
I had done some more data-logging today and got up to 19 PSI boost. I Have compared the Zeitronix MAP numbers and OBD2 MAP numbers and they are in sync. With 6 OBD2 params being logged, the Zeitronix MAP readings are much more frequent.
http://www.calctool.org/CALC/phys/default/pres_at_alt1295ft converted to 394.71600m and it gave me 13.8902psi
glad to hear the OBDII is accurate. the results with the Zeitronix MAP readings are expected....glad to hear its working well for ya!
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Joined: Mar 2004
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From: North NJ
2002 C32 AMG, 2013 GLK 350/4, 2015 E63S AMG Wagon
just used this calculator and gave me the value http://www.calctool.org/CALC/phys/default/pres_at_alt
1295ft converted to 394.71600m and it gave me 13.8902psi
glad to hear the OBDII is accurate. the results with the Zeitronix MAP readings are expected....glad to hear its working well for ya!
http://www.calctool.org/CALC/phys/default/pres_at_alt1295ft converted to 394.71600m and it gave me 13.8902psi
glad to hear the OBDII is accurate. the results with the Zeitronix MAP readings are expected....glad to hear its working well for ya!
and this one http://www.pdblowers.com/t8-elevatio...c-pressure.php
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Joined: Aug 2006
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From: Keesler AFB, Gulfport, MS
C32 AMG
Once I get the time to wrap my intake, that should get the numbers even better on that end.
I'm going to set mine up like this and see how it reads boost vs. default.
To compute a Boost Calibration correction factor:
Connect DashDyno to your vehicle.
Ensure your vehicle is not running.
Select the Preferences > Boost Calibration menu option.
Enter Boost Cal – enter 0.
Select the Data Logger > Meter 2 screen.
Press OK.
Live or Playback – select View Live Data.
Setup Method – select Setup Screen Manually.
Parameter 1 – select Boost Pressure and press OK.
Press MENU.
The boost pressure parameter will display. This is your Boost Cal correction factor. With the Boost Cal preference at 0 and the vehicle off, the Boost Pressure value shown is atmospheric pressure.
Select the Preferences > Boost Calibration menu option.
Enter the boost calibration pressure value measured above.
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Thread Starter
MBWorld Fanatic!
Joined: Oct 2006
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02 C32 AMG
I'm not going to split the system, no need. Between the upgraded HE, pump, modified T-stat, 30/70ish coolant mix, and two bottles of water wetter, my coolant temps have been amazing.
Once I get the time to wrap my intake, that should get the numbers even better on that end.
I'm going to set mine up like this and see how it reads boost vs. default.
To compute a Boost Calibration correction factor:
Connect DashDyno to your vehicle.
Ensure your vehicle is not running.
Select the Preferences > Boost Calibration menu option.
Enter Boost Cal – enter 0.
Select the Data Logger > Meter 2 screen.
Press OK.
Live or Playback – select View Live Data.
Setup Method – select Setup Screen Manually.
Parameter 1 – select Boost Pressure and press OK.
Press MENU.
The boost pressure parameter will display. This is your Boost Cal correction factor. With the Boost Cal preference at 0 and the vehicle off, the Boost Pressure value shown is atmospheric pressure.
Select the Preferences > Boost Calibration menu option.
Enter the boost calibration pressure value measured above.
Once I get the time to wrap my intake, that should get the numbers even better on that end.
I'm going to set mine up like this and see how it reads boost vs. default.
To compute a Boost Calibration correction factor:
Connect DashDyno to your vehicle.
Ensure your vehicle is not running.
Select the Preferences > Boost Calibration menu option.
Enter Boost Cal – enter 0.
Select the Data Logger > Meter 2 screen.
Press OK.
Live or Playback – select View Live Data.
Setup Method – select Setup Screen Manually.
Parameter 1 – select Boost Pressure and press OK.
Press MENU.
The boost pressure parameter will display. This is your Boost Cal correction factor. With the Boost Cal preference at 0 and the vehicle off, the Boost Pressure value shown is atmospheric pressure.
Select the Preferences > Boost Calibration menu option.
Enter the boost calibration pressure value measured above.
MBworld Guru
Joined: Apr 2002
Posts: 22,058
Likes: 18
From: Diamond Bar, CA
W206 PHEV AMG
jturkel, btw...any pic of how you setup the dashdyno? wire placement, mount, etc.
i just sold my REs. now I can consider this OR the wi-fi + itouch or iphone route. since I could also use a new phone. LOL
i just sold my REs. now I can consider this OR the wi-fi + itouch or iphone route. since I could also use a new phone. LOL
Thread Starter
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Joined: Oct 2006
Posts: 4,856
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02 C32 AMG
i'll try to get hold of a digital camera as mine is broken and take pics for you.
if you can visualize it, i have it mounted on the windshield with the windshield mount to the left of the steering wheel angled a little bit towards me so i can read it. it is wired down the left side of the dash and plugged into the OBDII. the wire is almost invisible as i was able to nearly hide it in the crevice on the side of the dash.
perhaps Trevor can post pics of where he mounted his?....i'll do mine asap, but he may beat me to it if he has a cam
Thread Starter
MBWorld Fanatic!
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02 C32 AMG
a bluetooth datalogger? is that what you are referring to?
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Joined: Apr 2002
Posts: 22,058
Likes: 18
From: Diamond Bar, CA
W206 PHEV AMG
yea, this thing https://mbworld.org/forums/c32-amg-c...bdii-wlan.html
friend already ripped the REV program and able to run it, so I just need the module and the itouch or iphone for cheap. lol around the same price too and would be nice upgrade for my phone if i choose to go iphone route. my friend does have an itouch he rarely use and I could borrow it. just deciding what to do first.
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From: Keesler AFB, Gulfport, MS
C32 AMG
yah thats exactly how i do it. when i first get into my car and do that, i get a 0 read out. then i turn on my car, get a certain number, then shut off the motor, and get a different number, which is usually 9.1 psi. I've given up on calibrating it that way and just decided to use the elevation method lol.
When you have it plugged into the OBDII and have the key in the ON position (two clicks clockwise, or just before turning the engine over) what is it reading for boost? To get an ACCURATE number you need to of course turn on the dashdyno, hit menu and get to the connect screen, connect to the car again (even if you were already connected) and then go check the log on boost...all while the car it not running and just sitting in the on position.
Whatever number you get there (ie mine was -14.7) is what you need to have it set to manually. If you don't get the same number every single time, you're either doing it wrong or the unit is dorked up. Odds are you are looking at old data when you first turn it on and aren't reconnecting it from scratch, which you need to when calibrating. Once it's all setup then you don't need to reconnect each time, or shouldn't have too at least.
Thread Starter
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02 C32 AMG
I don't know why it would be giving you any issues. I checked mine again this morning and it came out exactly the same. Double checked it again after I got to work and shut 'er down.
When you have it plugged into the OBDII and have the key in the ON position (two clicks clockwise, or just before turning the engine over) what is it reading for boost? To get an ACCURATE number you need to of course turn on the dashdyno, hit menu and get to the connect screen, connect to the car again (even if you were already connected) and then go check the log on boost...all while the car it not running and just sitting in the on position.
Whatever number you get there (ie mine was -14.7) is what you need to have it set to manually. If you don't get the same number every single time, you're either doing it wrong or the unit is dorked up. Odds are you are looking at old data when you first turn it on and aren't reconnecting it from scratch, which you need to when calibrating. Once it's all setup then you don't need to reconnect each time, or shouldn't have too at least.
When you have it plugged into the OBDII and have the key in the ON position (two clicks clockwise, or just before turning the engine over) what is it reading for boost? To get an ACCURATE number you need to of course turn on the dashdyno, hit menu and get to the connect screen, connect to the car again (even if you were already connected) and then go check the log on boost...all while the car it not running and just sitting in the on position.
Whatever number you get there (ie mine was -14.7) is what you need to have it set to manually. If you don't get the same number every single time, you're either doing it wrong or the unit is dorked up. Odds are you are looking at old data when you first turn it on and aren't reconnecting it from scratch, which you need to when calibrating. Once it's all setup then you don't need to reconnect each time, or shouldn't have too at least.
thats exactly what i'm doing. i put the key in position two right before motor turns on, connect it to the ECU, calibrate the boost to zero, then go to live data, boost, and i get zero every time lol.....its weird. maybe i'll try and make a vid of it and post it, and you can see what i'm doing wrong....
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From: Keesler AFB, Gulfport, MS
C32 AMG
and you got that 14.7 value after setting the boost preference to zero?
thats exactly what i'm doing. i put the key in position two right before motor turns on, connect it to the ECU, calibrate the boost to zero, then go to live data, boost, and i get zero every time lol.....its weird. maybe i'll try and make a vid of it and post it, and you can see what i'm doing wrong....
thats exactly what i'm doing. i put the key in position two right before motor turns on, connect it to the ECU, calibrate the boost to zero, then go to live data, boost, and i get zero every time lol.....its weird. maybe i'll try and make a vid of it and post it, and you can see what i'm doing wrong....
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02 C32 AMG
however, it says in the manual to calibrate it, you are suppose to adjust the preference boost to 0 (like i have done) so there is no calibration (0 = no calibration). then measure the pressure with the car off to measure the atmospheric. and then THAT number (atmospheric) is the number you input into the boost preference menu to properly calibrate.
idk....i just calculated the air pressure at my elevation and decided to leave it at that lol
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From: Keesler AFB, Gulfport, MS
C32 AMG
however, it says in the manual to calibrate it, you are suppose to adjust the preference boost to 0 (like i have done) so there is no calibration (0 = no calibration). then measure the pressure with the car off to measure the atmospheric. and then THAT number (atmospheric) is the number you input into the boost preference menu to properly calibrate.
lol
Thread Starter
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02 C32 AMG
oh well, i'll just keep it as the atmospheric inputted for my elevation calculation
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02 C32 AMG
just saw 20.7 psi at 129 IAT in 3rd gear. 91 octane. ambient temps were about 45 degrees. let off before i fully redlined third. if anyone wants to see the datalog, lemme know. otherwise, i'm just lazy and wont upload lol.
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