Slowgti
Newbie
Karma: +0/-0
 Offline
Posts: 7
|
 |
« on: January 25, 2013, 10:14:25 AM »
|
|
|
Hi Nefmoto, I have been reading and reading and reading here and any other linked sources for a few months. I have a ME7.5 1.8t ecu. Code RN. I am currently running an upgraded turbo setup up on a very old Revo tune. Not happy with the tune at all and I am wanting to tune it myself. From my reading and understanding my plan is to swap the stock injectors and first dial in my maf first and foremost. My turbo setup is as follows:
Borg Warner s256 turbo
"Ramhorn" style manifold
3" turbo back exhaust
Precision 350hp intercooler core with 2.5" piping
Audi tt 710n dv recirculated back to intake
Vr6 maf housing and 20v sensor
Walbro 255 pump
550cc inj. With 3 bar fpr
Factory intake mani and tb
Should I swap the maf sensor to the factory vr6 sensor to pull the 512 point maf table from a vr6 .bin?
Please excuse the questions, I read as much as I can I would just like to be sure before I make a stupid mistake.
I am currently loading the file off of my factory untouched ecu as a staring point using an eBay cable and nefmoto sw. I have tunerpro and have downloaded all the definition files and stock bins I can find to understand the layout and protocols.
Thank you for this great resource!
|
|
|
|
|
Logged
|
|
|
|
|
Snow Trooper
|
|
« Reply #1 on: January 25, 2013, 10:31:21 PM »
|
|
|
Yes, putting a known or oem provided setup in there is an ideal way to get your baseline and have fueling right. Make sure you transfer all applicable maps and not just MLHFM. Your oem housing, even if an extreme limitation would be best. Keep the air box setup in mind also as that was factored into the stock maps for stock MAFs.
|
|
|
|
|
Logged
|
cartoons?
6A 61 72 65 64 40 76 6C 6D 73 70 65 63
|
|
|
|
littco
|
|
« Reply #2 on: January 26, 2013, 12:48:58 AM »
|
|
|
Hi Nefmoto, I have been reading and reading and reading here and any other linked sources for a few months. I have a ME7.5 1.8t ecu. Code RN. I am currently running an upgraded turbo setup up on a very old Revo tune. Not happy with the tune at all and I am wanting to tune it myself. From my reading and understanding my plan is to swap the stock injectors and first dial in my maf first and foremost. My turbo setup is as follows:
Borg Warner s256 turbo
"Ramhorn" style manifold
3" turbo back exhaust
Precision 350hp intercooler core with 2.5" piping
Audi tt 710n dv recirculated back to intake
Vr6 maf housing and 20v sensor
Walbro 255 pump
550cc inj. With 3 bar fpr
Factory intake mani and tb
Should I swap the maf sensor to the factory vr6 sensor to pull the 512 point maf table from a vr6 .bin?
Please excuse the questions, I read as much as I can I would just like to be sure before I make a stupid mistake.
I am currently loading the file off of my factory untouched ecu as a staring point using an eBay cable and nefmoto sw. I have tunerpro and have downloaded all the definition files and stock bins I can find to understand the layout and protocols.
Thank you for this great resource!
Have you considered running the 018cb version of flash on your Ecu along with a 3" maf. Not sure what spec turbo that is but will the vr6 maf be big enough? I'm just think of ease of setup, running the larger 3" maf from an s3/tt 225bhp along with the Ecu flash will eliminate any potential setup issues. From experience the 018cb or 018h flash will run on many of the me7.5 ecu's and makes it a lot easier to get a base map to work from. I don't know what platform the RN is from but it may be worth looking into. |
|
|
|
|
Logged
|
|
|
|
Slowgti
Newbie
Karma: +0/-0
Offline
Posts: 7
|
|
« Reply #3 on: January 26, 2013, 05:39:16 AM »
|
|
|
Thanks for the reply's.
Littco: the vr6 maf is the same 3" housing as the 225/s3. That sounds like a good starting point for the maf functions. The car has had this setup for almost 80k and the stock intake tract is long gone. I think the fact that the 225/s3 has a factory dual intercooler setup might make the charge maps more accurate than the single intercooler 180hp model that my ecu is based on. The car is a mk4 gli 1.8t 180hp.
Snow trooper: my plan is changing one variable at a time. I no longer have the stock intake pieces but I have the factory injectors still. The injectors are much easier to change than trying to find an intake and adapting it to my setup.
Looks like I have to pull the file in boot mode. Immo is giving me troubles trying to pull using nefmoto softwear. Ordering a gilletto cable this afternoon
|
|
|
|
|
Logged
|
|
|
|
|
ddillenger
|
|
« Reply #4 on: January 26, 2013, 05:43:35 AM »
|
|
|
You can use your nefmoto cable with galletto, I have a sticky in flashing/chipping containing the software and everything necessary to use it.
|
|
|
|
|
Logged
|
Please, ask all questions on the forums! Doing so will ensure the next person with the same issue gets the opportunity to learn from your experience!
Email/Google chat:
DDillenger84(at)gmail(dot)com
Email>PM
|
|
|
|
littco
|
|
« Reply #5 on: January 26, 2013, 05:56:21 AM »
|
|
|
Thanks for the reply's.
Littco: the vr6 maf is the same 3" housing as the 225/s3. That sounds like a good starting point for the maf functions. The car has had this setup for almost 80k and the stock intake tract is long gone. I think the fact that the 225/s3 has a factory dual intercooler setup might make the charge maps more accurate than the single intercooler 180hp model that my ecu is based on. The car is a mk4 gli 1.8t 180hp.
Snow trooper: my plan is changing one variable at a time. I no longer have the stock intake pieces but I have the factory injectors still. The injectors are much easier to change than trying to find an intake and adapting it to my setup.
Looks like I have to pull the file in boot mode. Immo is giving me troubles trying to pull using nefmoto softwear. Ordering a gilletto cable this afternoon
I'm sure the CB file will load straight on for. Then you just need to delete the egt and any other bits not installed . I can post the krkte and tvub for the 550's and you should be good to go. If you're worried about blowing it up set tvldmx lower to cap boost and start from there. Taking this route is by far your easiest option |
|
|
|
|
Logged
|
|
|
|
|
britishturbo
|
|
« Reply #6 on: January 26, 2013, 06:21:02 AM »
|
|
|
Always start as close to stock as possible to get things dialed in, then swap one thing at a time and dial each change in perfectly before you move ontot he next, or you'll start to get compound problems.
Oh and nice choice on the S256... I have one of those on my 2001.5 S4 ;-)
|
|
|
|
|
Logged
|
|
|
|
Slowgti
Newbie
Karma: +0/-0
Offline
Posts: 7
|
|
« Reply #7 on: January 26, 2013, 07:23:18 AM »
|
|
|
Ddillinger: I will search for the tread, thank you
Littco: that sounds like the plan I am going to use. It seems most people use the LP file for this ecu. Makes sense being that there is a really good def file for it. Thanks for the advice, I am going to try and calculate Krkte and tvub myself. If you could double check my work that would be awesome.
Britishturbo: I am more than happy with the turbo. Just make sure you run a restrictor on the oil feed! That's what I would like to do, the problem is I built it 5+ years ago and the factory pieces have disappeared a long time ago
|
|
|
|
|
Logged
|
|
|
|
Slowgti
Newbie
Karma: +0/-0
Offline
Posts: 7
|
|
« Reply #8 on: January 26, 2013, 07:28:07 AM »
|
|
|
Littco: the 3" maf should be plenty, it's my daily driver so I'm not wanting to make enough power to have to run a hugely upgraded clutch.
|
|
|
|
|
Logged
|
|
|
|
|
prj
|
|
« Reply #9 on: January 26, 2013, 07:48:35 AM »
|
|
|
Just throwing it out, that your injectors are too small, at least at 3 bar.
You will need to bump the pressure to 4. Easily done via a drop in regulator.
|
|
|
|
|
Logged
|
|
|
|
Slowgti
Newbie
Karma: +0/-0
Offline
Posts: 7
|
|
« Reply #10 on: January 26, 2013, 07:52:58 AM »
|
|
|
Prj: I have a 4bar waiting to go in. I have to start slowly.
|
|
|
|
|
Logged
|
|
|
|
Slowgti
Newbie
Karma: +0/-0
Offline
Posts: 7
|
|
« Reply #11 on: January 28, 2013, 03:55:56 PM »
|
|
|
Ok. So my krkte value I calculated for the CB file with my factory injectors is 0.09561. The 180hp injector size is 317cc. Is this anywhere in the ballpark? I am still trying to find the Tvub value.
|
|
|
|
|
Logged
|
|
|
|
|
