How To: Speed Density on the evo8 using tephra v7/Phenem pre-patched roms
Sorry I've been out of town. Man you asked about 30 questions, answering all of them is going to be nearly impossible. I will say that most of your questions/ideas you are correct and have the right idea. The only thing I don't understand is this 'excel 3D VE map' idea you are talking about, can you try and explain it a little better or differently? More specifically, what are you trying to accomplish in doing so?
Again, almost all of your questions I'm going to say 'yes, that's right' to from the injector swapping to wideband.
Again, almost all of your questions I'm going to say 'yes, that's right' to from the injector swapping to wideband.
sorry for the lot of quest and long post i summarized what i read, and how i think what to do. The '3D' VE table, l2r99gst posted in the other topic what I looking for :
1part
2.part
3part
How to do this ? Is it ok to log the values in evoscan ?
As far as getting "base" values in excel like l2r99gst did, you don't need that. As long as you figure out how to use Logworks, then you will be able to plot the fuel trims and adjust them as needed.
Last edited by xmaciek82x; Dec 1, 2010 at 01:19 PM.
Im using the 9417175 v7 rom, Im lost as to what I change because Im using the spoolinup sd harness so the iat isnt wired to the fuel temp. Also what exactly do I change because Im using a omni 4 bar not the jdm map.
Download and use LogWorks for the table. You log in evoscan and move everyting over to LogWorks to get those charts.
As far as getting "base" values in excel like l2r99gst did, you don't need that. As long as you figure out how to use Logworks, then you will be able to plot the fuel trims and adjust them as needed.
As far as getting "base" values in excel like l2r99gst did, you don't need that. As long as you figure out how to use Logworks, then you will be able to plot the fuel trims and adjust them as needed.
https://www.evolutionm.net/forums/ec...velopment.html
It is a single setting change, very simple once you find it.
As for the omni, you need to change two things: 1 open the existing MAP VE tables as they are with the 3.3bar. Note the values or take a screenshot. Then you need to adjust 'MAP 16bit' or change the scalings on the VE tables to use the pre-setup scalings, it *might* be labeled kPa OMNI 4-bar or something. Restart ecuflash and then correct the tables with the old values as the new scaling with skew the table a bit.
(after reading this, re-read step 3b and see if it makes more sense now)
Yes, they actually do.
From my understanding and based on how my car reacts, its the opposite, to add fuel you set the load to kPa higher, so if it was 1:1 and you wanted to add fuel you would make it 1:2(kPa:load). Not saying to double the load just an example of what I mean.
Step 4b: SD MAP VE Table
Again, log wideband AFR and narrowband o2 feedback. Put the car in gear, take off, in first, then grab second or maybe third gear. The car should drive pretty well with *feather* light throttle. NO BOOST! Now, tip in throttle a bit, maybe 25-35%, just enough to bring the car out of vacuum, mabye like 0-5psi. If your car is like mine, it will lean out a bit in this load range, and you'll need to lower the load% values that correlate to ~31-61kpa a bit to bring AFRs in line. I dropped mine about 8-10% for these light load cruising areas.
Step 4c: drive the car, no boost!
If your car is going to stay in closed loop (like mine and most cars are) drive the car around with no boost. Take this time to admire how awesomely smooth speed density makes the car, and how thankful you are to everyone mentioned above and all of their hard work for making your evo drive so nicely. Watch your AFRs, o2 feedback, and LTFT Mid. I spent a few days driving back and forth to work tweaking MAP VE and RPM VE to get the car to cold start nicely, drive nicely, and keep LTFT's in check. This is not unlike dialing in a new set of injectors, if your LTFT is a bit negative, lower the appropriate RPM VE and/or raise your MAP VE values a few % at a time to bring them back in line. If the LTFT is positive, raise RPM VE and/or lower MAP VE.
(can someone double check this for me? pretty sure this is how I remember it!)
Step 5: BOOST!
If you're smart, you will now turn down your boost. I started at wastegate pressure. Roll on the throttle, get the car into the main powerband area (typically 4000-6000rpm) and if you can, watch wideband AFR as you do this. You may now have to de-linearize the MAP VE and RPM VE tables. I started by bumping the top two values in MAP VE table up by about 15% per some existing tables that were posted and it landed me very near the desired AFR at WOT. Lowering and smoothing the RPM VE table in the 4000-8000rpm range dialed it in perfect. NOTE: Don't expect the values in your map to represent the actual desired AFR values, they are correlated but not equal.
Once you've verified that AFR is safe, time to turn the boost back up to where it was previously tuned at. Doing WOT pulls from low rpm, you want your timing numbers to line up with your previous tune. You can be as precise or rough as you like here, depending on what you have in mind. If you'd like to get your car running perfectly on your previous tune, you need to tweak the MAP VE and RPM VE tables until your car runs like it did when running the MAF. If you are about to do a full tune on the car, you can tweak the values a bit to make them smooth, and then simply begin tuning the timing table.
If you began with a tuned rom, chances are your VE tables may end up looking somewhat similar to mine:
Tuning notes from Aaron@EnglishRacing:
Step6: drive the car, log, continue to monitor fuel trims, AFR and knock at WOT
This patch has not 100% proven to me that it is stable in all climate changes once it has been tuned. I'm sure its going to be close, but for now, plan on keeping an eye on things here and there, and if your car hasn't been professionally tuned, consider doing so!
Step 6a: tip-in/low rpm lean-out
A common problem that you may come across is the car wanting to run lean during initial TPS tip-in. For me, this occurred mostly at low rpm (1000-2000) and is induced while either lugging the car in traffic, or leaving from a stop. I found the solution by tweaking two tables: Asynch_vs_TPS (under global fueling) and your Fuel maps (don't forget the alt maps if you're using them). Bumping Asynch_vs_TPS by 10 units across the board is where I ended up, and richening up the AFR in areas around 80 load kpa from 1000-2250 a bit (with smoothing) made a world of difference for me.
Note: at this point, you can UNPLUG YOUR MAF sensor! You don' have to, but if you want to find a different intake setup to eliminate it from your intake tract, go for it!
Again, log wideband AFR and narrowband o2 feedback. Put the car in gear, take off, in first, then grab second or maybe third gear. The car should drive pretty well with *feather* light throttle. NO BOOST! Now, tip in throttle a bit, maybe 25-35%, just enough to bring the car out of vacuum, mabye like 0-5psi. If your car is like mine, it will lean out a bit in this load range, and you'll need to lower the load% values that correlate to ~31-61kpa a bit to bring AFRs in line. I dropped mine about 8-10% for these light load cruising areas.
Step 4c: drive the car, no boost!
If your car is going to stay in closed loop (like mine and most cars are) drive the car around with no boost. Take this time to admire how awesomely smooth speed density makes the car, and how thankful you are to everyone mentioned above and all of their hard work for making your evo drive so nicely. Watch your AFRs, o2 feedback, and LTFT Mid. I spent a few days driving back and forth to work tweaking MAP VE and RPM VE to get the car to cold start nicely, drive nicely, and keep LTFT's in check. This is not unlike dialing in a new set of injectors, if your LTFT is a bit negative, lower the appropriate RPM VE and/or raise your MAP VE values a few % at a time to bring them back in line. If the LTFT is positive, raise RPM VE and/or lower MAP VE.
(can someone double check this for me? pretty sure this is how I remember it!)
Step 5: BOOST!
If you're smart, you will now turn down your boost. I started at wastegate pressure. Roll on the throttle, get the car into the main powerband area (typically 4000-6000rpm) and if you can, watch wideband AFR as you do this. You may now have to de-linearize the MAP VE and RPM VE tables. I started by bumping the top two values in MAP VE table up by about 15% per some existing tables that were posted and it landed me very near the desired AFR at WOT. Lowering and smoothing the RPM VE table in the 4000-8000rpm range dialed it in perfect. NOTE: Don't expect the values in your map to represent the actual desired AFR values, they are correlated but not equal.
Once you've verified that AFR is safe, time to turn the boost back up to where it was previously tuned at. Doing WOT pulls from low rpm, you want your timing numbers to line up with your previous tune. You can be as precise or rough as you like here, depending on what you have in mind. If you'd like to get your car running perfectly on your previous tune, you need to tweak the MAP VE and RPM VE tables until your car runs like it did when running the MAF. If you are about to do a full tune on the car, you can tweak the values a bit to make them smooth, and then simply begin tuning the timing table.
If you began with a tuned rom, chances are your VE tables may end up looking somewhat similar to mine:
Tuning notes from Aaron@EnglishRacing:
Step6: drive the car, log, continue to monitor fuel trims, AFR and knock at WOT
This patch has not 100% proven to me that it is stable in all climate changes once it has been tuned. I'm sure its going to be close, but for now, plan on keeping an eye on things here and there, and if your car hasn't been professionally tuned, consider doing so!
Step 6a: tip-in/low rpm lean-out
A common problem that you may come across is the car wanting to run lean during initial TPS tip-in. For me, this occurred mostly at low rpm (1000-2000) and is induced while either lugging the car in traffic, or leaving from a stop. I found the solution by tweaking two tables: Asynch_vs_TPS (under global fueling) and your Fuel maps (don't forget the alt maps if you're using them). Bumping Asynch_vs_TPS by 10 units across the board is where I ended up, and richening up the AFR in areas around 80 load kpa from 1000-2250 a bit (with smoothing) made a world of difference for me.
Note: at this point, you can UNPLUG YOUR MAF sensor! You don' have to, but if you want to find a different intake setup to eliminate it from your intake tract, go for it!
thought I was going crazy when I was lowering the values and the afr was getting leaner, then I thought about it and it made no sense that lowering the load the equals xxkPa would add fuel lol. Raised the values and boomb shes running rich.
Download and use LogWorks for the table. You log in evoscan and move everyting over to LogWorks to get those charts.
As far as getting "base" values in excel like l2r99gst did, you don't need that. As long as you figure out how to use Logworks, then you will be able to plot the fuel trims and adjust them as needed.
As far as getting "base" values in excel like l2r99gst did, you don't need that. As long as you figure out how to use Logworks, then you will be able to plot the fuel trims and adjust them as needed.
Are you guys talking about the MapVE tables or the RpmVE tables?
I have used this link before and it works great.
okay well in the past i havent had problems setting up xml's and bins. however, im having an issue now. i followed step 2 and im not getting all the tables. im just trying to set everything up for when i decide to go SD, everything is ready for an ECU write.
This is what i get following step 2. there are three files in the zip folder, what's the 0706.xml for?
someone please let me know what im doing wrong and how to fix
This is what i get following step 2. there are three files in the zip folder, what's the 0706.xml for?
someone please let me know what im doing wrong and how to fix