|
RomRaider
Documentation
Community
Developers
|
| Author |
Message |
|
sincspecv
|
Post subject: Re: MAF transfer curves  Posted: Tue Feb 15, 2022 3:59 pm |
|
 |
| Newbie |
Joined: Thu Jun 04, 2020 1:57 pm
Posts: 1
|
|
Sorry if this is a stupid question, but where do I download the spreadsheet from? I checked the GitHub linked in the first post, but I do not see a repo with any spreadsheets.
Thanks!
|
|
| Top |
|
 |
|
ET89
|
Post subject: Re: MAF transfer curves Posted: Wed Mar 02, 2022 4:39 pm |
|
|
| Experienced |
Joined: Wed Jul 19, 2017 4:32 am
Posts: 178
Location: Zwolle, The netherlands
|
sincspecv wrote: Sorry if this is a stupid question, but where do I download the spreadsheet from? I checked the GitHub linked in the first post, but I do not see a repo with any spreadsheets.
Thanks! Nope, same here. can't find it in the GitHub either. Anyone can help us getting the latest version?
|
|
| Top |
|
|
|
ba114
|
Post subject: Re: MAF transfer curves Posted: Wed Mar 02, 2022 7:57 pm |
|
|
| Experienced |
Joined: Wed Oct 21, 2015 2:36 am
Posts: 980
|
|
The github is back up with more MAFs added to it now.
Please remove old backed up copies from my thread
|
|
| Top |
|
|
|
ET89
|
Post subject: Re: MAF transfer curves Posted: Sun Mar 20, 2022 10:03 am |
|
|
| Experienced |
Joined: Wed Jul 19, 2017 4:32 am
Posts: 178
Location: Zwolle, The netherlands
|
|
Has anyone found the IAT scaling for the Hitachi/Nissan MAF's?
I have been looking all weekend without any luck.
Did some measurements to find the resistance of the IAT sensor at several temps,
If something can help me translating this to the correct Voltage output to the ECU, that would another great way to
get the scaling. se attached file for my (homebrew) measurements.
Main reason why I want to use this is because it prevents me from drilling holes in a very nice turbo intake.
You do not have the required permissions to view the files attached to this post.
|
|
| Top |
|
|
|
dx4picco
|
Post subject: Re: MAF transfer curves Posted: Sun Mar 20, 2022 11:36 am |
|
|
| Experienced |
Joined: Thu Nov 15, 2018 11:00 am
Posts: 718
Location: Europe, France (French/English)
|
|
volts to the ECU depends on the pull up resistor used inside the ECU. I don't know its value
|
|
| Top |
|
|
|
ET89
|
Post subject: Re: MAF transfer curves Posted: Sun Mar 20, 2022 11:58 am |
|
|
| Experienced |
Joined: Wed Jul 19, 2017 4:32 am
Posts: 178
Location: Zwolle, The netherlands
|
dx4picco wrote: volts to the ECU depends on the pull up resistor used inside the ECU. I don't know its value Thanks! I’ve read this somewhere before (I think in the M50 iat sensor thread). With the measurements I have I should be able to calculate the pull up resistor values. I’ll try that first.
|
|
| Top |
|
|
|
ba114
|
Post subject: Re: MAF transfer curves Posted: Sun Mar 20, 2022 6:48 pm |
|
|
| Experienced |
Joined: Wed Oct 21, 2015 2:36 am
Posts: 980
|
ET89 wrote: dx4picco wrote: volts to the ECU depends on the pull up resistor used inside the ECU. I don't know its value Thanks! I’ve read this somewhere before (I think in the M50 iat sensor thread). With the measurements I have I should be able to calculate the pull up resistor values. I’ll try that first. Pretty sure its 2490ohm
|
|
| Top |
|
|
|
ET89
|
Post subject: Re: MAF transfer curves Posted: Mon Mar 21, 2022 4:19 am |
|
|
| Experienced |
Joined: Wed Jul 19, 2017 4:32 am
Posts: 178
Location: Zwolle, The netherlands
|
ba114 wrote: ET89 wrote: dx4picco wrote: volts to the ECU depends on the pull up resistor used inside the ECU. I don't know its value Thanks! I’ve read this somewhere before (I think in the M50 iat sensor thread). With the measurements I have I should be able to calculate the pull up resistor values. I’ll try that first. Pretty sure its 2490ohm Nice, means I was only off by 1,6% in my measurements/calculations! Thanks for sharing. Only thing I wonder is how much the heating element of the MAF will influence the outcome of the IAT in the hitachi MAF. but we will see.
|
|
| Top |
|
|
|
ET89
|
Post subject: Re: MAF transfer curves Posted: Sun May 29, 2022 12:30 pm |
|
|
| Experienced |
Joined: Wed Jul 19, 2017 4:32 am
Posts: 178
Location: Zwolle, The netherlands
|
|
@BA114 and every one else that might know:
Is the HPX-E Maf a direct fit for a flange that currently holds the Nissan 22680 7S000 MAF?
|
|
| Top |
|
|
|
ET89
|
Post subject: Re: MAF transfer curves Posted: Sun May 29, 2022 12:30 pm |
|
|
| Experienced |
Joined: Wed Jul 19, 2017 4:32 am
Posts: 178
Location: Zwolle, The netherlands
|
|
| Top |
|
|
|
ba114
|
Post subject: Re: MAF transfer curves Posted: Tue May 31, 2022 1:31 am |
|
|
| Experienced |
Joined: Wed Oct 21, 2015 2:36 am
Posts: 980
|
ET89 wrote: @BA114 and every one else that might know:
Is the HPX-E Maf a direct fit for a flange that currently holds the Nissan 22680 7S000 MAF? Yes
|
|
| Top |
|
|
|
russian
|
Post subject: Re: MAF transfer curves Posted: Wed Nov 09, 2022 12:12 am |
|
|
| Newbie |
 |
Joined: Thu Mar 05, 2015 10:11 pm
Posts: 9
|
|
| Top |
|
|
|
georg
|
Post subject: Re: MAF transfer curves Posted: Thu Jan 26, 2023 8:26 am |
|
|
| Newbie |
Joined: Wed Apr 26, 2017 4:43 am
Posts: 98
Location: Georgia
|
|
| Top |
|
|
|
jsta282
|
Post subject: Re: MAF transfer curves Posted: Tue Jan 31, 2023 9:26 pm |
|
|
| Newbie |
Joined: Mon Dec 12, 2016 9:48 pm
Posts: 6
|
|
Just thought I'd add my experiences to this thread. Using the latest Nissan MAF scaler on a genuine used sensor I was about ~3% rich. Car is a stock S52b32 with M50 manifold. I ended up getting it dialled in with only a couple of logs of MAF voltage and STFTs, the scaling spreadsheet and minimal effort. I did use a weld on adapter and make my own intake with 3" OD pipe (2.76" ID). Everything seems to be running really well, it looks quite neat and I no longer max the MAF out.
|
|
| Top |
|
|
|
highline518
|
Post subject: Re: MAF transfer curves Posted: Mon May 08, 2023 10:57 am |
|
|
| Newbie |
Joined: Tue Oct 23, 2018 6:01 pm
Posts: 16
|
|
I dont see "Load" when datalogging anymore, on any of these ecu's anymore. Am I alone on that? It's always 0.
nvm it was a telgram issue
|
|
| Top |
|
|
Who is online |
Users browsing this forum: No registered users and 0 guests |
|
You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot post attachments in this forum
|
|
