Using Nanocom Evolution to monitor manifold pressure kpa and MAF sensor kg/hr

[twr7cx]

I need to monitor my vehicle to check the following (and then adjust my IRB Development dual channel turbo booster box accordingly):


Your are aiming to see around 220kpa on the manifold pressure and 620-630kg/hr on the maf sensor under full throttle acceleration when set correctly.

I have a Nanocom Evolution and am assuming it has the capabilities to do this, but how do I get it to do this and how do I interpret the output? The PDF instructions that I have for the Nanocom Evolution are not very clear...

O, and can anyone confirm the units that the Nanocom measures in - is it kg/hr and kpa or something else e.g. g/s.

[twr7cx]

Managed to record using the instruments function and the little blue disc picture in the bottom right corner.

Imported the CSV file into Microsoft Excel and have sorted by Descending order to determine my beak values.

Peak Ambient Pressure is 99.73
Peak Air Flow is 346

I'm not sure what units the Nanocom Evolution is using though. Judging by the figures likely to be the kg/hr and kpa though. If so I have a lot of adjusting to do...

[twr7cx]

I just realised that it's probably not the AMBIENT PRESSURE that I'm interested in, but rather the TURBO PRESSURE that the MAP sensor reads.

Peak Turbo Pressure was 210.8 - so not far off my idea 220.

It seems that according to web.nanocom.it/download/DIAGNOSTIC%20FUNCTION%20OF%20THE%20TD5%20ENGINE.pd f the Nanocom is measure in kpa and kg/hr.

[twr7cx]

Excuse my jibberish now, I am now just using this thread to record my adjustments and data (might come in handy in the future for someone else installing an IRB Developments Dual Channel Box or for myself if I have to ever change anything).

I turned the MAF adjuster (the one on the right side - yellow wiring) four turn clockwise. This resulted in Air Flow peaking at 588.7 and gave a much better idle reading.

This is approximately 60.5kg/hr increase per turn, which is 30.25kg/hr for half a turn. Since I'm looking for between 620kg/hr to 630kg/hr, another half a turn clockwise may get me there...

Going to give the MAP adjuster a quarter of a turn to try to get the Turbo Pressure up from 210.5kpa to 220kpa.

[twr7cx]

Third run after the adjustments mentioned above:

Air Flow peak: 629.2 - actually 2313, but this figure is a complete outlier and seems unreaslistic so I've taken the second figure. I'll give it a minute counter clockwise adjustment to try to reduce it to around the 625 level (right in between the recommended 620 to 630 range).

Turbo Pressure peak: 211.7 - again there is an outlier figure of 329.3 which I have discounted. I will try a half turn adjustment this time.

[twr7cx]

Fourth run restults:

Turbo Pressure peak: 215.7kpa - so another half turn should hopefully be at 220.

Air Flow peak: 613.5kg/hr with another outlyer of 3909.6 which I have discounted. I'll give it a fraction of a counter clockwise adjustment (I probably should have left it were I had it before).

[twr7cx]

Fifth Run:

TP: 219.2kpa - so pretty much there.

AF: 606.9kg/hr - not sure what has caused the drop since I adjusted it to increase!?! Perhaps the increase in Turbo Pressure effects it? Will adjust it 1/3rd of a clockwise turn.


EDIT:

Sixth run:

TB: 220.4

AF: 640.5 - will adjust 1/6th of a counter clockwise turn.


EDIT 2:

Seventh Run:

TB: 219.8

AF: 633.9 - so will need a slight further counter clockwise adjustment.

[OffTrack]

....

[twr7cx]

Scotty,

Would you mind sharing how IRB recommend the airflow figures are checked?

I'm a bit curious because I've been having a look at PhilipA's gung-ho 4250rpm fuelling files and done some tests of my own, and I'm seeing peak airflow figures of 640+ at over 4000rpm. These figures are substantially higher than what I get when I try and test the MAF by other means.

cheers
Paul

Paul, I have no idea if the following will be of any assistance, but before I made the purchase from IRB Developments, they checked that I had some means of monitoring the vehicles outputs, I informed them that I had a Nanocom Evolution and they said:
Your Nanocom evolution will be ideal..... I can e-mail Ian and ask further, but responses are usually very slow. I received my IRB product in the mail, two weeks later I received the instructions via e-mail (I had to send a few reminders). This is what I received:


Apologies for the delay -
Please find attached instructions. Any problems give me a shout.

Instructions:

2 channel adjustable 'Anti Limit Box'

Red - 12volt Ignition live or permanent 12v feed (seperate from any feed into the ECU)
Black - Earth (good)

Yellow and white are the channel wires - one is for MAF and one is MAP (as per standard boost box). It doesn't matter which way round (obviously they need to be used as a matched pair).

MAF is pin 11 in the red plug (grey wire, green chaser on post 2002) (one from end of the bottom row)
MAP is pin 6 in the red plug as per a standard boost box. (middle of the bottom row)


The box is set in a safe setting.

The channel connected to the map sensor will be somewhere close, but the maf sensor channel will need quite a few turns clockwise (usually about 4 turns)

Your are aiming to see around 220kpa on the manifold pressure and 620-630kg/hr on the maf sensor under full throttle acceleration when set correctly. This should also stop you killing MAF's.

MAF sensor must be a genuine part, and at idle it should be reading 57 - 62 kghr

To get the pins out of the ECU plug, remove the white anti back out plate and use a pick or small flat bladed screw driver to release the standard pin - look from the front of the plug (not the wire side) and you will see the small tab holding the original wire in place.



Regards

Ian Baughan

Untitled (http://www.irbdevelopments.com)

or follow us on Facebook - www.facebook.com/irbdevelopments


I'd be interested in taking my vehicle down to Justin Cooper and having it connected to his laptop and see if what ever product he is using gives different output readings to my Nanocom Evolution's.

[OffTrack]

Paul, I have no idea. I can e-mail Ian and ask, but responses are usually very slow. I received my IRB product in the mail, two weeks later I received the instructions via e-mail (I had to send a few reminders). This is what I received:

Thanks. I didn't read your first post properly. The answer was quoted there!

But thanks for posting up Ian's email. That is interesting to read.


I think the EVO samples more frequently when it is just displaying data. I'm not 100% on that, but it might be worth double checking using the peak reading button if you have just been going off the recordings.

cheers
Paul

[twr7cx]

Eight Run:

Seem to have had a slight step backwards:

AF: 642.5

TP: 221

EDIT:

9th run:

AF: 613.7

TP: 220.1

I'm starting to think that close enough is good enough - I'm going to just adjust the AF slightly and be done (the vehicle is driving perfectly, good power levels and EGT so should be fine). I could spend all night making minor adjustments otherwise, and then seasons, day temperature and humidity and what not might even effect it a bit.

[twr7cx]

I think the EVO samples more frequently when it is just displaying data. I'm not 100% on that, but it might be worth double checking using the peak reading button if you have just been going off the recordings.

I have read that when recording it records once every second.

What is the peak reading button? Is that one of the three little graph picture buttons down the bottom? I assume the peak reading button might be the one of the graph going up high? How does this function work?

[PhilipA]

You press the button and the Instrument display shows peak reading for 1or 2 seconds in the same session.
Regards Philip A

[OffTrack]

I have read that when recording it records once every second.

What is the peak reading button? Is that one of the three little graph picture buttons down the bottom? I assume the peak reading button might be the one of the graph going up high? How does this function work?

Yes the three graph buttons are the one you need. When you are viewing inputs the Evo stores the highest and lowest values that have occured since you opened the module. The graph button with the X clears the stored values, so you can reset between runs without exit the module. When I tried accessing peak values while recording the values wouldn't display, so it seems you can't do both at the same time.

cheers
Paul