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MichaelR32GTR

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Posts posted by MichaelR32GTR

  1. Driven wheel speed questions

    in G4+

    Posted

    Bringing up an old thread 

     

    I changed my speed settings as per recommended settings for an r32 gtr 

    Driven and non driven changed to LF wheel speed 

     

    also in di3 - LF wheel speed

    i changed my pull-up resistor from OFF to ON

    And active edge from rising to falling 

     

    and on two occasions now with me changing these settings, I can drive around normal ok but when I give it some extra throttle and accelerate fast it literally feels like traction control is kicking in, splutters and I don’t gain much momentum

     

    so I just put it back the original way it was 

     

    any idea why changing speed settings would cause this issue 

  4. R32 Gtr drive by wire occasional stalling

    in G4+

    Posted

    7 hours ago, Adamw said:

    I would say the main problem is the ISC speed lockout is set to "Driven wheel speed", then under speed sources you have the driven wheel speed source set to "Average rear wheel speed", but there are no rear wheel speed sensors assigned, so the speed lockout will never work.  This means closed loop will start winding the throttle closed anytime you are in overrun, then when you push the clutch in the throttle is too closed so the RPM drops and stalls. 

    I suggest changing both driven and non-driven wheel speed source to "LF wheel".  Set ISC speed lockout to 10kmh.  A couple other changes I would suggest:

    1. Change idle ign control AP lock out to 0.8%.  
    2. I would typically have idle target error on the axis of the idle ign table - not engine speed.  It should work ok as is provided you never want to change idle speed.
    3. E-throttle target table will probably work better without the big change in target below 1500RPM.  I would generally have the same value right across the whole top row - unless you have an engine which is slow to return to idle then I sometimes have a smaller target above say 1500rpm.  

    In my ethrottle target table 

    top row, idle is at 5.0, do you recommend I change settings between 0 to 1500rpm to 5.0

    instead of at the moment how it is setup as for example 12, 12, 9, 5, 2 etc etc

  5. R32 Gtr drive by wire occasional stalling

    in G4+

    Posted

    Excellent Thankyou for the reply’s guys 

    I will make these changes and report back after the weekend and see how it goes 

     

    Thankyou 

    6 hours ago, plox said:

    Log would answer this but what does it idle at and is it lumpy?

    Ignition idle control reduces timing at 1200rpm and idle control is set for 1150rpm with 100rpm deadband (idle control isn't doing anything between 1050-1250) so it could get into situation where it's reduced timing and idle control isn't doing anything to correct it (Adam may know better).

    Idle seems to be set kind of high, if you're happy with this you could try change ignition idle settings to:

    image.png.3efbb0e862c712049154d7ba2341a746.png

    or bump up anti stall gain slightly and see what effect it has.

    It seems to idle ok but I can see on my digital dash my ignition timing at idle jumping between 5 and 15 and everywhere in between 

    and idle will vary around 100rpm up and down from the 1150rpm idle target 

  9. R32 Gtr drive by wire occasional stalling

    in G4+

    Posted

    I have had this issue on going since i changed to a link fury g4+ Ecu 

     

    sometimes I can be driving, brake to reduce speed, downshift, then for example clutch in to enter a drive way and it stalls, 

    other times I could be slowing down clutch in and stalls or sometimes I hold it in a gear to the very last minute before I come to a stop, then clutch in and still does it 

    could even be driving on highway, take the exit come to a stop and stalls 


    then I can be driving and it never does it 

    it’s so inconsistent that I can’t pick it, nothing to do with driving style, temperature, how long I’ve driven for etc just happens randomly 

     

    anyone have any input into what could be happening 

     

    also with my old vipec v88 and when I first went DBW it didn’t do it, then I changed to a link fury g4+ and since has done it 

  12. Best way to enable launch control

    in G4+

    Posted

    Hey guys

     

    i have a link g4+ fury in my r32 gtr,

     

    i had abit of issues enabling launch control the current way it is setup, which is via speed input, ie 0kmh, foot flat and it should enable, then after say 5kmh is turns off

     

    but last time at the drags sometimes it would work and sometimes it wouldn’t so I think I need to wire it to a switch to enable it,

    is that the best way ?

    any more info on setting it up properly would be appreciated 

     

    thanks

  15. Driven wheel speed questions

    in G4+

    Posted

    Hey guys 

     

    Just came across this looking through my ecu settings and I’m not sure if it’s correct or not 

     

    I have Digital Input 3 (DI 3) - LF wheel speed 

     

    but when I go into the “speed sources” table I am seeing the following:

    *Driven Wheel Speed Source: average rear speed

    *Non Driven Wheel Speed Source: average front speed 


    should the driven wheel speed source also be LF wheel speed ?

  20. increasing boost

    in G4+

    Posted

    hi guys

     

    I'm after some help in increasing my boost, as I'm not very familiar with the g4+ wastegate duty table

     

    log shows going through gears 1 - 4 and showing peak of around 31psi in higher gears, I want to increase it to around 35psi or so

    it does run a 4 port boost solenoid

    gate pressure is around 23/24psi

     

    any help would be much appreciated

     

    I will attach my tune file and log file if that's of any help

     

    thanks

    log - https://drive.google.com/file/d/1cg8M7xDLDIoNrumvjl5GJm4yFboAmm-G/view?usp=sharing

    map - https://drive.google.com/file/d/1rL4-NK8sEvGXYnN-DDBzmpLtE4yahRWk/view?usp=sharing

     

  23. Base timing questions

    in G4+

    Posted

    Hello

    without using a timing light, can you see what your actual base timing is using the software ?

     

    I need to check my base timing, but I came across the runtime value page (f12), click the “ignition” tab and it shows “ign angle (BTDC)”  13.0

     

    is this correct or am I way off in thinking this 

     

     

  24. Evo 6 jerky coming off throttle

    in G4+

    Posted

    7 hours ago, Adamw said:

    What do you mean?  Why would RPM behave different for E-throttle?

    Sorry just checked my settings again:

    MAP lockout is 100kpa

    RPM lockout is 2000rpm

    Speed lockout is 20kmh

    tp/ap lockout is 4.0%

     

    do these settings seem abit high and could be giving me issues at at slow speed/light load like in car parks etc ?

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