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Drexal

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  1. Drexal

    VQ37 VVEL Control

    Thanks for your reply @cj 1 - I was thinking the same thing when it came to using the throttle control H bridge to control the VVEL but I will be retaining the standard manifold on the VQ37 as it is designed to clear the VVEL motors so I'm stuck with the twin throttle bodys. 2 - This is always a possibility and something that I will have to spend some time researching - Similar to the robotics speed controller. It's really a toss up to see where is the best place to spend all my time. The only reason I mentioned the piston to valve clearance is I know Nissan have programmed hard limits into the software when it comes to tuning the VVEL with ECUTek. I agree that you would think they take into consideration these things and would design an engine that would "grenade" like you said. Will do some measurements when I build the engine so I can document the physical clearances. I have checked out that wiring diagram, the idea of using the factory controller and wiring and using CAN to control them seems like the best option to me. Only issue being I'm not familiar with CAN bus sniffing but it might be a skill set that I'm going to have to learn. Unfortunately I don't have a complete running vehicle / engine, the VQ37 will be transplanted into my Nissan Gloria which currently has a VQ30 in it.
  2. Drexal

    VQ37 VVEL Control

    Hi All, I'm wanting to run the Nissan VQ37VHR on my Link G4+ Thunder and was seeing if anyone out there has had any luck with this? In particular control over the VVEL. I've been debating a couple of ways to control this but some ideas would be much appreciated. I'm sure there are people out there who have control over it but I haven't found much information yet. So far I have spoken to @Adamw and he recommended using some sort of external speed controller - Example - https://www.vexrobotics.com/217-8080.html Another idea was manual control. Setting the VVEL at a certain level and locking it. Taking in account valve to piston clearance. Thanks is advance
  3. Sorry to bump an old thread but I'm looking at running the VQ37 with a Link Thunder, was seeing if anyone here was able to gain control of the VVEL?
  4. Drexal

    Lambda/AFR problems

    Have you got another sensor you can swap it out with to rule out a bad sensor? If its a LSU 4.9 I've had a few fail and give some very strange readings.
  5. Drexal

    Link ecu on a tablet

    I've got it turning on by itself but not turning off, it was just a simple setting in the Bios to get it to turn on with ignition power. I'm sure it wouldn't be too difficult to find a way to get it to shut down with the ignition off but this might be a pain in the ass if you wanted to make any changes with engine off.
  6. Drexal

    Link ecu on a tablet

    I've been using a Dell Venue 7140 for a couple of months now and its been very helpful when tuning my daily driver, it charges through USB Mini and then communicates to the ECU through another USB port. Only issue I've ran into is scaling the PC Link software correctly, doesn't seem to scale up very.
  7. Drexal

    the apprentice

    Firing order is definitely different to start with, I've just finished retrofitting my RB20 with a Z32 ECU . If you have any questions feel free to PM me. I might still have the PIN comparison PDF that I did up laying around somewhere.
  8. I think your on the right track to answering your own question. If it had a trigger error than clearly that would cause some erratic issues with the RPM and Injector duty cycle. I'll have a look at the log and map when I get home. Any more information on engine / trigger setup ect?
  9. Would be very helpful if you could attach a copy of the data log and current map
  10. @Leiden I'll have to do some touch up's to the fuel map once I turn the Charge Temp Correction off but that's not too much of an issue. I had weird VE numbers in the table when I was trying to use the Modelled fuel and couldn't find the cause so ended up changing it across to MS based. I'm used to working on the engines not tuning them but this forum and community has been very helpful! The Open Loop Lambda is active but I've changed the temp activation to above 120 degree's (which I would hope this engine never see's that temp) so that I can get the fuel map some what close. I've attached this morning's log with the timing removed. I'll import the Crank Enrich and Startup Enrich maps for the 350z VQ35 which should be the closest to the VQ30 and try them tomorrow. Log 2018-08-10 8;55;12 am.llg Nissan Y34 Gloria - Link Thunder 09.08.18 v2 - Idle stepup added - Timing removed.pclr
  11. @Leiden I realised this after I had spent the time tuning the fuel map on the dyno after having issues with tuning the VE model. Will rectify this once I get back onto the dyno. As for the odd shape in the fuel table, I don't know why it's like that. Will try to change back to the Modelled and see if I can figure it out. A little update from this morning - I found the ignition timing on startup to be very advanced (29 degrees). After fixing pulling some ignition out of the map it seemed to start better this morning. I'm slowly learning how to tune and the Link G4 software. I appreciate you highlighting these issues and I will try to address them as best I can. Cheers - Jacob
  12. Most recent log file attached.
  13. Good morning fellas, I've been having some issues with cold starts lately. Resorting to the forum is my last option as I have tried everything that has been recommended in the forum before. I have added fuel and removed fuel with no success. Currently it is cranking excessively and once it does start the AFR's drop into the high 9's for a short period of time. The guys from work have noted the amount of fuel soot out the tailpipe when I drive away as well. Does the injection timing have a large effect on the start time? Any input will be much appreciated. Log and PCL attached. Jacob Nissan Y34 Gloria - Link Thunder 09.08.18 v2 - Idle stepup added.pclr Log 2018-08-9 9;10;05 pm.llg
  14. Drexal

    What ecu for dual DBW

    I'm running the Thunder ECU on a VQ30 with single fly by wire but I know it's capable of running twin if that answers your question.
  15. Id be interested in this as well, I'm currently running a Re4r03b gearbox with a R34 Skyline trans controller. It seems to work but would be much nicer to be able to get the Link to do the control.
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