Rossobianconero
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Posts posted by Rossobianconero
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Like @atlex said, modelled fuel equation is superior to traditional, but I have some problems in the past when we did not have enough sensors to run it correctly. At least you want fuel pressure, the equation request for fuel temperature as well to be accurate, I have done it without the fuel pressure sensor and so many times the fuel system is not doing what it supposed to be doing, so run the fuel pressure sensor. I had never done it without fuel temperature so cant comment on how important is at the end of the day. You will also need a very good information on the injectors, do a 3d table for deadtimes etc.
About the lambda target, in general you want to be as lean as possible for power, just put enough fuel to keep it safe, how much? you will have to try on the dyno, but like atlex said, is better to start on the rich side to be safe. Then with everything tune and hitting your lambda target etc, and with you listening for knock, you can try on the dyno and see how much power you are giving away with running rich etc. And also depend of were you are what fuel you run etc, sometimes you will make more power running richer and more timing that running lean with less timing.
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5 hours ago, Ryno said:
Boost control is set manually as of now. I have not messed around with the knock monitoring in the link settings. Outside elements when driving make it difficult to keep the engine in a complete cell so Ive tried to let the mixture map sample while I focus on the road. These engines are knock limited but most issues are reported over 18psi depending on supporting systems ect.
I have tune some of those in the past, and I would say that you need knock control when you want to go into power runs, you never know when they are going to be knock. With a good driver you can hold the engine in one cell, but I would say just make "pulls" at X amount of vacuum from low rpms to the limiter and then re adjust the tune until you have it perfect.
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On 3/7/2024 at 8:58 AM, Vaughan said:
one map run twice so each bank has its fuel and timing calculated for it or the same fuel and timing applied to both?
at least on the tuning side, you have only one ignition and fuel table (more in reality but, lets keep it simple ) , but the closeloop is per bank and it will correct each bank as it sees necessary. Can not remember at the moment if you can adjust each bank on the stock ecu, like putting more timing on one cylinder that other but I would say probably, but timing is running the same base for both as the fuel, but runs full time closeloop per bank.
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On 11/1/2023 at 10:52 PM, Vaughan said:
Right Click on table -> Import/Export -> Export to Clip Board OR Export to File, use the imports for loading a setup into a table.
others ecus, when you open and create a correction for one cylinder, it will ask you if you want to add the same table for each cylinder, that save some times, is something that could be added?
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you have a trigger problem, post at least the file on the ecu so we can have a look.
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17 hours ago, Vaughan said:
Right Click on table -> Import/Export -> Export to Clip Board OR Export to File, use the imports for loading a setup into a table.
excellent!
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On other software you can save your tables, for example ignition correction per cylinder, so every time you add the correction to a cylinder on the link you have to erase or adjust the premade axis instead of just load a setup. Is by no means a deal breaker but it would save me quite a bit of time specially on a V8. I don't know if it is something that can be add to the current software. But would be nice.
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If you are using modelled fuel equation, and you have a FP sensor you should change your fuel system type from map reference to fp sensor. I usually only use modelled with a fuel temp sensor as well but, I'm guessing you can get decent results without it to. If that O2 sensor is reading correctly you are way way to lean to be on boost, are you using any type of knock detection while doing this? Your charge temp correction doesn't looks right, and when you are using modelled you don't use a IAT correction for the fuel. If it is as lean as the O2 show, I would abort the run, put more fuel on the fuel map and try again.
On the boost control, you have to setup the boost target base on something else that MAP or MGP, a very common map would be TP vs RPM. And on the wastegate map, you use boost target on one and RPM on the other axis.
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The gauge will see lambda and multiplier for what ever the manufactured decided and show it to you in AFR, because you are reading the signal coming from the gauge I would just tell the ecu stoich is 14.7. Because you are actually seeing the equivalent of lambda multiplier by 14.7 (guessing AEM is using 14.7), just run them as pump gas.
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2 hours ago, Vaughan said:
yes
is that something that is going to upgrade in the future or is fix on the G5?
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I know is just the sample map on the new G5 software, is the table allocation still 45 tables?
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On 9/4/2023 at 6:40 PM, Rozsko said:
Hey Guys,
I see there is a new version of PCLink supporting G5 and the G5 product page is also updated with some details.
I assume that means the new ECU is ready for sale, but with a quick google search I could not find it yet advertised.
When is it going to be available for real?
Thanks,
Béla
Link G5 Voodoo Pro | 152-5000 (possumbournemotorsport.com) already in stock
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the same file that you posted with knock control "setup", is NOT SETUP you will have to check what is knock at what frequency you can detect knock better with the ecu but, it will give you a idea of how would looks like. I didn't adjust the axis on the trim tables but you get the idea. If you follow the help files instructions you will be alright, for me what it work best is when I set it up for the first time is using my own knock detection system (so i can actually hear the engine), clears knock are easier to detect in both system.
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I'm guessing when vtec activated the engine dies... you have a fuel map for vtec on, which has not been tune or calibrate is at cero, so any time you will go to vtec it will stop injecting fuel (falls on its face). And like koracing said, your fuel map on boost at least on no vtec is max out, that doesn't make sense. At first look the timing seems conservative, should be a safe start but knock control is going to be necessary even with e85.
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16 hours ago, DerekAE86 said:
Many tables you can't actually edit. This includes the Boost ECT Target Trim Table.
Others are idle control Startup Offset and AC Offset.
I never really had to adjusted but I check and yes, you cannot edit the Boost ECT target trim. If you need that correction with more temp, then you can use the GP trim and make your own. Sadly, that limits the options to do other thing with that table but...
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5 hours ago, Julien said:
I know my case is uncommon but my car being air cooled and running quite hot I'm well over the fixed scale of all the ECT tables..
I'm running around 130-140°C and I max out the sensor at 160° on track or in traffic..
It would be nice if the scale could be edited so I could implement some safeties.
For instance the boost target trim table stops at 140..
Since the car heats up quickly I guess I could deal with simply render the axis editable so other users wouldn't be messed..
You should be available to edit the axis of the tables by pressing X. You can make the tables as you wish, the ECT can even be 3D if you want
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I am with you @Oprah_152 on the table allocations, is easy to run out. But sadly there is no way we get more, is a hardware limitation from what I know. The G5 is going to have more but no information about it yet.
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Also, use your own knock detection system like the knockblock, to know for sure if is knock and when. Only when I know my knock detection setup is perfect I feels comfortable without it (when tuning)
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Is 93 us? so like 98 ron?
Probably Adam can help us with the 2 knock sensor into one knock signal, normally you would run one knock sensor one signal input. So I don't know if that could cause that problem. It should not be even close to knock on 97-98ron on that lambda and timing. Are you using any sound confirmation of the knock? are you using your own knock detection system? That would confirm it either way. My guess is that or the frequency is not the right one, or you cant run two knock sensors on 1 signal input. You will probably end up with a gain per cylinder that is not all at 1.0 when the knock detection is setup.
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3 hours ago, Adamw said:
It's not something I have had a lot to do with as it is pretty rare to do so. In the OEM world it generally becomes more of a stability control function rather than traction control, where wheel speeds may be manipulated based on yaw, acceleration and other realtime measurements to approximate the level of traction. In the aftermarket world the strategy would vary with the application and goal, it could be something simple such as a maximum wheel speed acceleration rate or real vehicle speed may be determined from LiDAR/RADAR or there may be GPS-based systems nowadays that incorporate other vehicle dynamics sensors to give a vehicle speed accurate enough to be useful for wheel slip calcs.
For a drag car (AWD), what would be your choice to do this on a link. I do not really want to depend on a fix acceleration rate as a "traction" control, if possible
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On 4/17/2023 at 1:27 PM, Adamw said:
It depends what you want to use the speed sensor for. GPS would be ok for an idle speed control lockout for example but it wouldnt be any use for gear detection, launch control, cruise control or traction control.
You will likely need a separate sensor anyhow, it would be difficult to get a GPS signal from a tablet into the ecu. There are cheap GPS speed sensors that work fine for basic functions like idle speed lockout. example: https://www.aliexpress.com/item/1005005429092184.html
How would you run traction control on a AWD car?
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1 hour ago, Adamw said:
I would suggest putting a pressure sensor or even a temporary gauge on it to confirm it is a fuel supply issue before you go randomly replacing parts.
Double check the fuel pressure as Adamw said. I have seen that happen with bad fuel tanks so it could be that but first try everything and check everything.
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On 4/17/2023 at 11:09 AM, Vaughan said:
longer math channels but no additional and no additional table allocations as of yet.
I know that the G5 will have more table allocations, you have a number on that, or not yet?
Help with some k20 settings
in G4x
Posted
what is your engine setup? what cams are you running? and we will need a log to see what is doing on the pitlane and that drop that you feel when the vtec kick in. You are running just one fuel map, normally with vtec you want 2 fuel maps one for each cam but, you can get away with just one if you do it right. And on race cars I like to have another correction for the VTC and fuel map so if is running a little bit of the vtc target, it will still perform.