Jump to content

mapper

Members
  • Content Count

    283
  • Joined

  • Last visited

  • Days Won

    22

Reputation Activity

  1. Like
    mapper got a reaction from Adamw in Boost drop between coast and inland setting?   
    You can span one axis of the target boost table to a rotary switch, so you can do up to 33 different boosst tagets. If you use a potentiometer you even can get infinity many  boost targets. 
  2. Like
    mapper got a reaction from immy21 in Closed Loop fuel trims   
    Regarding Lambda control error correction table. I spend alot of time to tune these. The base map is adjusted the wrong way around. Because the error correction tables is a % corretion of actual error, you want big corrections like 15%  on small errors (0.03 lambda error) and small correction (like 5%) at the biggest error on the table. This is because a fuel film built up first in the ports when big correction are applied. This means it needs several burn cycles to get the whole change applied and measured. This means lambda control applies big changes two or three times for big corrections which leads to Lambda oscillation.  On small changes fuel film built up is much less.  Lambda change is done and measured much faster and within same burn cycle. This means the Lambda correction can be set much higher, because the change in AFR is measured instant.
    I have attached a tuned example.  

  3. Like
    mapper reacted to tarlo in programmable logic   
    I would love in the future if you could step up virtual logic to be programmable perhaps in function block or text with Boolean (and and or if etc) to allow lots of flexability to the end user. the virtuals are great but can be limiting.  Thanks 
  4. Like
    mapper reacted to Adamw in Switched closed loop, G4 extreme.   
    In firmware 5.6.6 we added 3D CLL trim tables.  You get one table for adding fuel and a seperate table for removing fuel.  So, you could turn these on, then put your switch status on one axis.  
    In the example below, I have my CLL switch on DI4.  I have put DI4 on the Y axis of the trim table (0 means switch is off, 1 means switch is on).  So for instance when my switch is on and at 4000RPM the CLL is allowed to add up to 20% fuel.   When the switch is off it is not allowed to add any.  Obviously the other axis doesnt necessarily need to be RPM, TP or MAP might be more suitable but it is up to you.

  5. Like
    mapper reacted to ClintBHP in Lean Spike Between Gears   
    I would move to a TPS based fuel table and compensate for MAP on a 4D table.
  6. Like
    mapper got a reaction from Zaidovic in Nissan S14 Launch Control more Bangs pls   
    I really really give you a good tip, it's about the most risky thing you can do on a SR20det! DON't use any ignition cut or similary thing which pops and bangs. You are going to pop out rocker arms which can lead to a huge engine damage!
  7. Like
    mapper reacted to ClintBHP in Comparing and contrasting wideband O2 options on the market.   
    We see lots of wideband controllers here, the worst for sensor failure are AEM, Innovative seem to be better, there is a noticeable difference as you really don't see sensor failing that often on the LINK CAN Lambda, we put the sensor failures down 100% to the heating strategy not shocking the sensor and allowing time for residual water / condensation to be cleared.
    The other thing is that the AEM sensor supplied with the kit does not appear to be bosch, but although you could argue that is the reason they fail, replacement genuine bosch dont seem to last that long either. That is the main reason we try and get people to buy the Link sensor and we always ask about the placement of their Lambda bung.
    PLUS you get EGT with the Link CAN Lambda an invaluable device that has saved my customers $1000's in turbo rebuilds.
  8. Like
    mapper reacted to Adamw in How to get 6X EGTS to display on MXS Strada with Link Fury   
    Ok, try these two files.
    812776967_BenjiBarraFINALTUNE7PSI New CAN.pclr
    Benjis Barra Patrol With EGT's.zconfig
  9. Sad
    mapper reacted to Grant Baker in Track-display logging with G-force sensor   
    There is a limit to the amount of data the dash will receive and we have reached the limit!
  10. Like
    mapper reacted to Adamw in Seat Ibiza (TT) Plugin   
    The updated CAN stream to suit the Ibiza and some other later VAG models is included in the next firmware release.  I don’t think it is far away from release but if you need it now you can email tech@linkecu.com
  11. Like
    mapper reacted to Adamw in X-SERIES AEMNET CAN BUS GAUGE   
    Our current 6 CAN ID's allowance is not normally much of a limitation for the market our ECU's are used in.  Most motorsport devices allow sequential or compound messaging which allow you to send multiple data words on the same ID.  It is usually just odd proprietary stuff like AEMNET or trying to duplicate an OEM CAN bus that needs multiple ID's.  It would be nice to have more ID's but there is a finite amount of memory in the ECU so the allowance that is given to CAN functions has to be balanced against other features that users want.  I suspect you wont find it a limitation at all.
     
  12. Like
    mapper got a reaction from 1320MINI in Rotary switch   
    I'm using AEM 30-2056 and for Highend Application Motec 9 Position. Doesn't matter much which one you use, it just should give you signals between 0 and 5 Volts. 
    Besides, Adamw / Link ECU that would be a nice Accessory in your product lineup! 
  13. Like
    mapper got a reaction from iecku.tavea racing in Rotary switch   
    I'm using AEM 30-2056 and for Highend Application Motec 9 Position. Doesn't matter much which one you use, it just should give you signals between 0 and 5 Volts. 
    Besides, Adamw / Link ECU that would be a nice Accessory in your product lineup! 
  14. Like
    mapper reacted to Adamw in 2JZ Which Cam Sensor?   
    Either is fine, the only difference is the trigger offset will be different by 360 deg depending which one you use. Our Supra plug-in uses the rear sensor.
  15. Like
    mapper reacted to Adamw in Closed Loop fuel trims   
    Yes,  in the next 5.6.6 firmware the CLL trim has 2 fully configurable 3D tables, so you can have different limits for adding fuel than for subtracting fuel and have those limits mapped against MAP, RPM, or almost any other parameter you like.  I dont think the release is far away.
  16. Like
    mapper got a reaction from Shedley in Nos control   
    I think its much better to have all universal function like virtual aux, timers, 4D, 5D, fual fuel table etc. than a dedicated NOS function. This way you can build your own NOS function excatly how you want it. You just habe to be a bit creative with the universal functions. 
  17. Like
    mapper got a reaction from Alan in Closed Loop fuel trims   
    Regarding Lambda control error correction table. I spend alot of time to tune these. The base map is adjusted the wrong way around. Because the error correction tables is a % corretion of actual error, you want big corrections like 15%  on small errors (0.03 lambda error) and small correction (like 5%) at the biggest error on the table. This is because a fuel film built up first in the ports when big correction are applied. This means it needs several burn cycles to get the whole change applied and measured. This means lambda control applies big changes two or three times for big corrections which leads to Lambda oscillation.  On small changes fuel film built up is much less.  Lambda change is done and measured much faster and within same burn cycle. This means the Lambda correction can be set much higher, because the change in AFR is measured instant.
    I have attached a tuned example.  

  18. Like
    mapper got a reaction from TechDave in Nos control   
    I think its much better to have all universal function like virtual aux, timers, 4D, 5D, fual fuel table etc. than a dedicated NOS function. This way you can build your own NOS function excatly how you want it. You just habe to be a bit creative with the universal functions. 
  19. Like
    mapper got a reaction from 1320MINI in Nos control   
    I think its much better to have all universal function like virtual aux, timers, 4D, 5D, fual fuel table etc. than a dedicated NOS function. This way you can build your own NOS function excatly how you want it. You just habe to be a bit creative with the universal functions. 
  20. Haha
    mapper reacted to TechDave in PRI News   
    No no no, we're not releasing two new plugins. Fake news.
  21. Like
    mapper reacted to Adamw in CAN-EGT module   
    You should be asking this on a Megasquirt forum, it is not really our job to support a competitors product.
  22. Like
    mapper reacted to Tiz in Toyota 86 CAN   
    As above, I built a 2jz gt86 using a link Fury. Oleg Zaytsev from dynotech Ukraine was kind enough to share his CAN data with me. Everything worked on the car that we had on. We removed the ABS & airbag system as it was a show car so I cant verify abs and tcs but absolutely everything else worked as it should.
     
     
  23. Like
    mapper got a reaction from iecku.tavea racing in Ethanol Content Clamp Function   
    The continental Ethanol Content Sensors will read significant lower when low flow goes through the sensor. This means during a WOT run the ethanol content will read significantly lower at high load and rpm than at idle, because the flow in the return line is low. 
    I attached a Log to show the problem. With more boost, I see values 20% lower at WOT than at idle.  This is a well-known problem and other ECU manufacturers have an Ethanol Clamp function for a good while.
    The Ethanol content does with activated clamp function only update when the Injector Duty Cycle is below a certain level. Once the INJ Duty Cycle is higher than the threshold the ECU takes the last value read below the threshold and update Ethanol content only when InjDC goes below the threshold. So a quite simple function, but with a big need! Please implement it asap. Thank you. 
     

  24. Thanks
    mapper got a reaction from TacticalGibs in Questions about the capabilities of a WRX9+ G4+   
    Guys relax a bit. 
    I've mapped and I'm supporting several 600-800hp 2.0 to 2.3l time attack engines/cars with a Link ECU and multimap strategy.  Such an engine runs usually for 5000 race track kilometers until a rebuilt is needed. That's a similar distance to a 24h race.  I like to answer your question.: 
    All LINK ECU use the same PC-Software and the same Firmware. The main difference between all LINK G4+ ECU's is only the hardware.
    your tuner should tune the main Fuel and ign Maps from the lowest to the highest boost levels. There are 3 main Boost Maps in the LINK ECU. You can additionally span one of the axis of the Boost Wastegate or Target table to a driver Rotary Switch. So it's possible to have up to 33 different boost maps, which all can be switched on the fly. 
    On top of that, you can activate 4D fuel and ignition tables on one or several of the boost maps. This allows trimming Ignition and Fuel on some maps if you or your tuner like to do that. 
    The Link Ecu is really flexible. Usually, the only limit what you can do is the creativity of the tuner. 
    As an example, we installed 3 rotary switches in a Time Attack/ Hillclimb car.  One 12-Position Rotary Switch is used to choose between 12 different torque maps (mainly altered by boost strategy). The Launch RPM can be chosen over another 12-Position Switch, depending on whether and Track conditions. And lastly, we have a 3-Position Rotary Switch to choose one of 3 Drive by wire Throttle Maps.  
    For engine Safety, we set up Limits for too low and to high Coolant temp, Oil temp, Oil press and Fuel press. We are also using full time closed loop lambda and sending a lot of Data over a custom CAN. 
    As you see, the LINK is a very capable system.  But as every ECU, it needs a capable tuner to use it properly. 
     
  25. Thanks
    mapper got a reaction from TechDave in Questions about the capabilities of a WRX9+ G4+   
    Guys relax a bit. 
    I've mapped and I'm supporting several 600-800hp 2.0 to 2.3l time attack engines/cars with a Link ECU and multimap strategy.  Such an engine runs usually for 5000 race track kilometers until a rebuilt is needed. That's a similar distance to a 24h race.  I like to answer your question.: 
    All LINK ECU use the same PC-Software and the same Firmware. The main difference between all LINK G4+ ECU's is only the hardware.
    your tuner should tune the main Fuel and ign Maps from the lowest to the highest boost levels. There are 3 main Boost Maps in the LINK ECU. You can additionally span one of the axis of the Boost Wastegate or Target table to a driver Rotary Switch. So it's possible to have up to 33 different boost maps, which all can be switched on the fly. 
    On top of that, you can activate 4D fuel and ignition tables on one or several of the boost maps. This allows trimming Ignition and Fuel on some maps if you or your tuner like to do that. 
    The Link Ecu is really flexible. Usually, the only limit what you can do is the creativity of the tuner. 
    As an example, we installed 3 rotary switches in a Time Attack/ Hillclimb car.  One 12-Position Rotary Switch is used to choose between 12 different torque maps (mainly altered by boost strategy). The Launch RPM can be chosen over another 12-Position Switch, depending on whether and Track conditions. And lastly, we have a 3-Position Rotary Switch to choose one of 3 Drive by wire Throttle Maps.  
    For engine Safety, we set up Limits for too low and to high Coolant temp, Oil temp, Oil press and Fuel press. We are also using full time closed loop lambda and sending a lot of Data over a custom CAN. 
    As you see, the LINK is a very capable system.  But as every ECU, it needs a capable tuner to use it properly. 
     
×
×
  • Create New...