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

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...

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.

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.

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.

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).

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.

....

Originally Posted by OffTrack

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

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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.