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Showing content with the highest reputation since 04/23/2019 in all areas

  1. 2 points
    Im not sure if you are asking a question or making a statement? Of course the fuel table and ignition tables (and all other tables) will need to be tuned to your specific engine before it will run well. It sounds like you dont even have a good grasp of the basic fundamentals yet so Im reluctant to advise you touch it yet. I would not attempt to tune a turbo car with this level of understanding. I would suggest you start by doing something like the low cost EFI tuning fundamentals course here to get a better understanding of the theory behind it: https://www.hpacademy.com/courses/efi-tuning/ If you try to tune without a good understanding of the basic theories then it will just end in disappointment.
  2. 1 point
    You can't is the short answer. Im not actually sure that MAF should even be an option currently in the Di channels.
  3. 1 point

    antilag programming m50 turbo

    See help file: Navigation: G4+ ECU Tuning Functions > Motorsport > Anti-Lag >Anti-Lag Setup Examples There are also examples for the cut and retard tables on the relevant pages.
  4. 1 point

    R&D question - cylinder deactivation?

    But you also need to hold the exhaust valves open on the deactivated cylinders otherwise you just have massive pumping losses. So not only do you need the mechanisim to do this but you also need an engine like a hemi where there is enough piston to valve clearance for the piston to travel past TDC with the exhaust valves fully open.
  5. 1 point

    S13 plugin g4+ and e-throttle

    The actual hardware is onboard but the S13 ECU doesnot have the Aux 9 & 10 output pin available to use. If you returned the ECU to us we could add a couple of wire links to make those outputs accessible for a small fee.
  6. 1 point
    I had time to play with this today. It looks like you can make it work as is. In the ECU's that dont have the serial data stream settings visible In PC link, it seems that the "requested short" data stream method is enabled by default. Realdash is compatible with that. In PC Link set the baud to 57600. In Realdash set the baud the same and set it to "use short datastream". Let me know if it works for you. I tested it on a couple of my test ecu's and it seemed to work.
  7. 1 point

    Co2 boost control

    As far as I remember they only control/monitor/target the dome pressure (top side). Bottom side is still connected to manifold but not referenced at all in the control system. Basically just like changing the spring in the dome. If you have a 4psi spring and you add 30psi to the dome your manifold pressure will control at about 34psi.
  8. 1 point

    CLL for WOT only

    You can set the trim tables up however you like, but an example below would allow CLL to add 15% fuel when above 90%TP or remove 5% fuel when above 90% TP.
  9. 1 point


    It sounds from your description like it might be firing on exhaust stroke. Can you try changing the trigger offset to 360deg and see if that helps. If that doesnt help, can you put a timing light on and confirm that the spark is somewhere close to where it should be. I have seen some evo's before that had the crank trigger fitted back to front which changes the timing by ~60 deg.
  10. 1 point

    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
  11. 1 point

    Birdgeport driveability?

    Hey guys I was wondering if there is anything I can do to address the jerkyness of a bridge Port 13b at the lower RPM and load range for better drivability especially in the cruising around zones
  12. 1 point
    Hi, Any update on serial stream availability for current storm ecu? Thanks.
  13. 1 point

    Co2 boost control

    i have co2 boost control on my skyline using the fury to control it. I just use a 1kg co2 bottle with a 3 pot mac valve it works really well however i needed to use pneumatic needle and seat valves to get it smooth which also saves co2 they were about $10 from a air plant shop. Can run a 3psi spring and achieve 40psi can do nice boost vs speed tables etc awesome for track. If you need any info let me know and ill email you pics
  14. 1 point

    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.
  15. 1 point

    how to setup launch control for r33 gtr?

    Something like below would be the most basic setup. All numbers are just examples, you will have to see what works best for you. In this example a virtual aux is used to enable launch control when wheel speed is <10kmh. The launch control limits RPM to 5000RPM and retards timing by 20deg. As soon as the clutch is let go and the wheel speed goes above 10Kmh launch control will turn off.
  16. 1 point

    Really high ingnition values

    If it were mine I would probably only drive it to/from the dyno and maybe to the shops. I wouldn't put any stress on it while it clearly has something wrong with the timing as you dont really know what else might be wrong to cause this, and what damage it's doing in the background. My gut feel is still that somehow your "zero" point is 10 or so degrees off from real TDC. You're showing ~18 deg @ idle, but a car can idle quite happily at 8 with the idle valve open a bit extra, and your injection timing been off by 10deg wont mean much. I'd start with doing the ECU calbration process again, following the setup guide exactly. If that doesnt help, probably rip the alternator belt, pulley, and side timing covers off the engine and make sure that all the timing marks are lined up on the actual crank + cams. The maybe a compression test and/or leakdown test? If you somehow had compression issues you could probably run additional timing without knock as the pressure in the cylinders would be a lot less than it "should be" at the level of boost you are seeing in the manifold. Are there any other issues with the engine? leaks, using water or oil, weird noises?
  17. 1 point

    Subaru legacy bh5

    What engine does your car have? non turbo or ez30 - maybe. single turbo conversion - maybe. factory twin turbo - controlling those would be a problem. Apart from that - these cars still had separate TCM's so theoretically it could be done. There are only about 10 wires that touch both the ECM and TCM in factory trim - TPS goes to both, RPM goes ECM-> TCM+tacho etc, MAF/MAP says it goes sensor->ECU then separately ECU->TCM but I seem to recall some of them go direct to the ECU&TCM from the sensor, and if not you could probably splice it to do this. Then there are the 3x torque control wires. You'd need to figure out whether the signals to ECM->TCM or the other way around, and whether the TCM actually needs them to function. I suspect you could do it but you might trash the transmission pretty quickly if you dont have the torque cut request working properly. Its certainly jumping well into the deep end and wouldnt be an easy swap.
  18. 1 point

    Stalling Issue

    I dont think the log shows it stalling so we may not be seeing the real cause, but a couple of things I notice: ISC RPM lockout is set quite high @1500RPM, something like 400RPM would be more normal. This lockout is added on to your target idle RPM, so if your target idle is 1000RPM and your lockout is 1500RPM, then the ecu will try to take over idle control at 2500RPM, closing the idle valve trying to bring the RPM down to target. Also, the minimum clamp needs to be set to 15% on these valves. Your Aux 2 frequency is set to 100Hz (I notice our E36 base map is also), that seems lower than expected to me. The last car I tuned with the bosch 3 wire valve I used 200Hz and had good control range. There are some odd spikes of low ignition dwell recorded in the log. This may indicate a trigger issue. Can you do a triggerscope at idle.
  19. 1 point

    Lean Spike Between Gears

    I would move to a TPS based fuel table and compensate for MAP on a 4D table.
  20. 1 point
    The Crydom DC-series SSR's work fine, I've been running my 450's off one all last year with no problems. But yes you do need a flyback diode at the pumps. ( 2x450's off one 60A ) I've a 3rd in tank pump if need be and a 100A relay sitting if and when I do need to use it And in no way whatsoever is the little Hella relay suitable for such a purpose, even from the standpoint of coping with the current of such a pump, nevermind trying to pwm it too. Haltech offer this drawing and is how I use mine with Syvecs. Although a high frequency would probably be better with a proper controller, it does seem SSR's dont really enjoy being pushed in this way. I found mine happy around 200Hz. https://www.haltech.com/wp-content/uploads/2017/10/SSR_Power_SW_Web.pdf I do use one of the Hella SSR relays for my water injection though.
  21. 1 point
    Hi Dave, It takes a bit of time for a update to be approved through the Microsoft store system, if you email the team at Realdash they may be able to give you an idea of when the next version is going to be publicly available which will include the fix for the lag. Cheers, Mark
  22. 1 point
    Thank for Realdash developing such a powerful app that I don't have to buy expensive AIM racing instruments. My car is Subaru GRB, ej25 with link G4 + thunder. I developed a protocol conversion module using STM32. Then can convert the Can signal of the link G4+ into a Realdash protocol, and then connect to the mobile phone through a TTL to Bluetooth module, so as to display almost all the data on the mobile phone (as long as the PClink can display). Welcome to exchange SM-A6050_20181227180733.mp4 https://www.youtube.com/watch?v=fNeBGatmBSc https://www.youtube.com/watch?v=eKJzVRUp09c
  23. 1 point
    Does anyone know how to pull in ethanol content % into RealDash? In Link it is labeled "% Ethanol" but that field is not pulling into RealDash as far as I can see.
  24. 1 point
    Here you go: https://1drv.ms/u/s!AiYbYlZQuRHPn3zpsxhdV-DI1p5D
  25. 1 point

    Logging setup for ECU logging

    Yes, that was one of the first Efi engines I done about 20 years ago when I was a teenager. Motec M48. Couldn’t get many SR20 parts in those days so had to make throttle bodies, camshafts, dry sump system etc from scratch. Datsun 510 rally car.
  26. 1 point
    Hi, Currently with mixture map you set a threshold so that samples within say 25% of the centre of a cell vertically and horizontally. This pool of results are used to contribute towards an average value in the centre of the closest cell. However this means that you've got 25% variation of rpm and load, contributing to a static value in the centre - and you need to throw away 75% (?) of recorded values. I have another idea that can let you use all of the data instead, and improve the results. For simplicity's sake imagine a 4x4 grid, and our current load and rpm point is 25% of the way towards the lower RPM value and 25% of the way towards the lower Load value. If we interpolate these values, as per what the ECU does. Note: I have just titled the columns and rows with percentages to show what percentage of the each cell we are interpolating from. We get a value of (25% * 25* 10) + ( 25% * 75% * 30) + (25% * 75% * 20) + (75% * 75 * 40) = 0.625 + 6.075 + 3.75 + 22.5 = 32.95 is the table value that interpolation produces. Now lets say that you wanted to add 10% to this value. If we just adjust the closest cell by 10%, as per current Mixture Map strategy. Then our bottom left cell changes to 44 so our table now looks like this: If we do the interpolation again, but with the new value to represent running the car again after the update: We get a value of (25% * 25* 10) + ( 25% * 75% * 30) + (25% * 75% * 20) + (75% * 75 * 44) = 0.625 + 6.075 + 3.75 + 24.75 = 35.2 as the new overall value. Which is only makes 6.8% difference to the interpolated value, rather than the 10% we wanted. On the other hand... If PCLink De-interpolated the 10% that it wants to add. Instead of adding 10% to the one cell, we split the 10% addition across the 4 cells based on the same percentage that the value was interpolated from initially. So: Top left cell: (10 * 1.1 * .25 * .25) = 0.6875 Bottom left cell: (30 * 1.1 * .25 * .75) = 6.1875 Top Right Cell: (20 * 1.1 * .25 * .75) = 4.125 Bottom Right Cell: (40 * 1.1 * .75 * .75) = 24.75 = 35.75 is the table value that de-interpolation produces. We were trying to add 10% and this new value produced is 10.5%. So that's pretty good! (The 0.5% error comes from rounding to 3 decimal places in my example) So it's accurate to the provided data in every instance. Which is especially relevant when it's applied 1000s of times across all of the cells. You dont need to throw away any of your recorded data, it all contributes to the cell values. Mixture map is pretty good for roughing out a map initially but because of the inaccuracies of the "nearest cell" method I don't really use it that much anymore when trying to dial in a fuel map. You always overshoot or undershoot unless you set your cell tolerances impossibly tight and have millions of samples. And, since this is all only done in PCLINK rather than the ECU, there's not really any worry about the overheads of the extra maths involved. It's worth having it chug away for a few minutes longer if you can get an awesome result on first or second iteration of Mixture map logging. So - that's my Friday night suggestion. Thanks for reading if you got this far, haha.
  27. 1 point
    except filtering you should use very good quality screened wire on this kind of sensor also Trigger Arming Threshold has major fact on magnetic interference
  28. 1 point

    Usb to CAN (tuning cable) pinout

    I've just used a multi-meter on my tuning cable to work out the pins. Pin 5 is VCC Pin 4 is D- Pin 3 is D+ Pin 6 is GND.
  29. 0 points


    Hi If you swap back to the factory ECU do you have faults showing as the 99 model is what our test car was so would expect it is well sorted. Are you able to post or Email in a copy of the set up so we can confirm the CAN is happy.
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