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JWT chips are protected, they scramble the chips so if you tried to download them the binary is scrambled. Their boards 'decode' the scramble to make sense of it. Hence why you need to send a JWT back to them for reprogramming.
Nistune I believe are still working on getting their boards functioning in the VQ30 ECU's.
Bikirom is quite easy to tune and I intend on supplying a base tune that is 95% accurate for 95% of most I/H/E modified engines. That data logging ability will allow you to 'log' data and then send me the log file if you require help doing a custom touch up
For instance, moving the MAF closer or further from the throttle body will require a small adjustment of the throttle enrichment map, etc.
I have 2 weeks off at end of this month(been involved in a huge contract at work), will aim to have first five ECU's with V4 boards ready for US based testing mid July.
I've sent you a couple emails, I know you're busy though. I hope we can work together to get it tested still. Let me know.
__________________ 95 SE - Stock 3.0L w/ USIM - T61/P-trim @ 14.5psi - 93 octane
11.76 @ 121 - 1.82 60' - ET Street DOTs
12.15 @ 123 - 1.95 60' - Nitto DR 3.5L swap with I/Y/E
12.92 @ 104 - 1.69 60' - M&H Slicks
13.60 @ 103 - 2.15 60' - Street tires
Hey Nealoc187,
Your definitely on the list. I aim to send you through the first ECU as soon as it is assembled
Holidays start next week
I've been looking forward to this.
How long is the waiting list for this ECU? Also is it possible to send the daughterboard to me so I can solder it in? or do you want us to send the ECUs to you?
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- Joe
1996 KH3 Maxima SE - 222 WHP / 208 WTQ SAE corrected @ 209,000 miles, VQ30DEK swap
(5 spd - project car, never ending money pit )
just an odd question. does climate affect tuning with ecu upgrades? meaning; will a car in a humid enviroment perform differently than a car in a desert enviroment?
__________________
"9 out of 10 Housewives approve of this product."
just an odd question. does climate affect tuning with ecu upgrades? meaning; will a car in a humid enviroment perform differently than a car in a desert enviroment?
Short answer: Yes.
__________________
98 SE - VQ35
2k SE - Stock... pretty much
Boost, juice, conversions, been there, done that.
If your capable of some baisc soldering, then the daughterboard can be sent over and then you just need to send the original base map(its extracted via the software) then use the activation code to enable the board.
Air flow meter does compensate to a large degree but yes, some adjustment can be required in extreme humidity changes etc.
VQ35 VCT system is functional, I actually have a much more efficient way of running the VCT system now that references the AFM voltage at a given rpm point and with some basic data logging self learns how much PWM is required for maximum torque at the given 'cell' rpm points Interpolatation between cells is linear.
To do this calculation, I actually set the VCT system up the same way Bikirom uses its boost control system, with the CMPOS signal looped wired up like a MAP sensor and solenoid PWM varied between ranges to keep CMPOS ref within range.
VQ30 ECU info later this week, few late nights should make some heavy progress
Me also. If you need any help, let me know. I have electronics experience as well as firmware engineering. And there's just something about modifying the stock ECU that appeals to me.
VQ30 ECU A18-E11-ER1 as per the JWT ECU database, on page 2 of this thread.
One V4 Bikirom board
One V4 Bikisoft Program
Testing and dyno tuning this week
Will be using the Tomei cams for now in my VQ35 with the V3 settings used to make sure it runs properly with the 'known good' tune I have in the RB25 ECU. Test it on a VQ30 Maxima next week and then send the first one out to Nealoc187 for USA testing
VQ35 testing has made a further development last night though, VCT is now a function of airflow from the MAF. If air flow is not increasing voltage(ie dropping airflow under increasing TPS voltage) then VCT solenoid PWM is altered to increase airflow and load, for maximum torque at all times. This also allows cam timing to be optimised for part throttle and allows extensive use of the volumetric efficiency table to give better fuel economy.
VQ30 ECU A18-E11-ER1 as per the JWT ECU database on page 2.
One V4 Bikirom board
One V4 Bikisoft Program
Testing and dyno tuning this week
Will be using the Tomei cams for now in my VQ35 with the V3 settings used to make sure it runs properly with the 'known good' tune I have in the RB25 ECU. Test it on a VQ30 Maxima next week and then send the first one out to Nealoc187 for USA testing
VQ35 testing has made a further development last night though, VCT is now a function of airflow from the MAF. If air flow is not increasing voltage(ie dropping airflow under increasing TPS voltage) then VCT solenoid PWM is altered to increase airflow and load, for maximum torque at all times. This also allows cam timing to be optimised for part throttle and allows extensive use of the volumetric efficiency table to give better fuel economy.
Martha stewart says:"And thats a good thing."
__________________
"9 out of 10 Housewives approve of this product."
VQ30 ECU A18-E11-ER1 as per the JWT ECU database, on page 2 of this thread.
One V4 Bikirom board
One V4 Bikisoft Program
Testing and dyno tuning this week
Will be using the Tomei cams for now in my VQ35 with the V3 settings used to make sure it runs properly with the 'known good' tune I have in the RB25 ECU. Test it on a VQ30 Maxima next week and then send the first one out to Nealoc187 for USA testing
VQ35 testing has made a further development last night though, VCT is now a function of airflow from the MAF. If air flow is not increasing voltage(ie dropping airflow under increasing TPS voltage) then VCT solenoid PWM is altered to increase airflow and load, for maximum torque at all times. This also allows cam timing to be optimised for part throttle and allows extensive use of the volumetric efficiency table to give better fuel economy.
Hopefully you still have me in this line up, I have been waiting for this since you started posting about it in 2007. I have cash, ECU's, and access to a dyno ready to go whenever you are ready! Just let me know,.
I'm still anxiously awaiting this as well, in fact I've come close to getting rid of the maxima and picking up a galant vr-4 just so I can tune with dsm-link
Hopefully you still have me in this line up, I have been waiting for this since you started posting about it in 2007. I have cash, ECU's, and access to a dyno ready to go whenever you are ready! Just let me know,.
Cheers.
Yeah, your definitely on the list
Quote:
Originally Posted by Kevlo911
I am down to get rid of my EU as soon as we can confirm it works. Let me know if you need any help
Anxiously awaiting this. If I get it within enough time to do some thorough street testing I'll test it at a 2 day track even that I'm doing on July 18 and 19.
__________________ 95 SE - Stock 3.0L w/ USIM - T61/P-trim @ 14.5psi - 93 octane
11.76 @ 121 - 1.82 60' - ET Street DOTs
12.15 @ 123 - 1.95 60' - Nitto DR 3.5L swap with I/Y/E
12.92 @ 104 - 1.69 60' - M&H Slicks
13.60 @ 103 - 2.15 60' - Street tires
wow. ive been watching this thread since the beginning. this is going to be good. please, add me to your list of people to contact when this has been tested on US soil. thanks!
Very interesting!!!
I tried to get Calumsult to do something very similar to this but he's been too occupied and focused on SR20 options.
I would definately be interested in this! I was about to purchase an EU, but I think I'll wait. I can really benefit froman extended rev limiter I hate the cut off at 6400.... The car pulls great and then all of a sudden, BAM! its like a huge tease!
Subscriing to get in line for this! I'm willing to solder the board myself as well.
I imagine there will be a huge waiting list for this! If there's already a list, please put me on it. hehehehe
Any car or wiring loom that can run a 95/96/early 97 VQ30 ECU will work. All late 1997 onwards ECU's are different internally. I have bought seven ECU's so far and still grabbing as many as I can that are reasonably priced. Anyone who wants just the Bikirom board, will require a suitable VQ30 ECU that has the expansion slot.
Suitable ECU's that will take a board: http://jimwolftechnology.com/wolfpdf/ECU-ID.PDF
Middle of page 6 for I30 ECU's
Bottom of page 8 for Maxima ECU's
Top of Page 9 for Maxima ECU's
All of the above ECU's will accept a Biki board, the 'stock' binary actually varies between boards though so 'sharing' tunes may cause problems. Hence if your ECU part number has not been 'cracked' yet, the stock tune will need to extracted so we can modify it to suit the Bikirom board.
Hey Nealoc,
Can you email me your postal address please? Get this one sent off so you have some time to play with the tuning for your car and make your deadline
V4 boards will be around for a few months yet, I believe Lucas normally orders them in 500 lots. They do sell quickly though but he normally places a replacement order before he runs out. V4 only took so long due to a complete redesign from V3 with the mini-SD memory card slot and a few other features in the V4 boards
From a IM I got last night... may as well explain it to everyone
Just to clarify how I am using a VQ35 timing chain arrangement to run the VQ35 with VCT, without causing Cam/Crank sensor sequence conflicts in the VQ30 ECU when VCT is active...
I cheated... front bank head casting and exhaust cam is modified. Its also how I got the RB25 Cam position signal originally when I was running the RB25 ECU Replicate the stock ECU Cam signal and your set
Hopefully, Nealoc gets his ECU in time and we can make some more US progress along with an independant review
I cheated... front bank head casting and exhaust cam is modified. Its also how I got the RB25 Cam position signal originally when I was running the RB25 ECU Replicate the stock ECU Cam signal and your set
So... you cut down a 3.0 intake gear (for the timing marks) and hung it on the left exhaust cam gear, then mounted the 3.0 cam sensor to match the correct 3.0 ECU timing? or something like that?
Close The 3.0 timing gear on the opposite end of the exhaust cam would be spinning in the opposite direction which puts firing sequence out. For it to work, I actually had the exhaust cam itself notched to replicate 3.0 CMPS signal waveform(originally used the RB25 waveform which is common knowledge locally which is why my RB25 ECU equipped VQ35 got up and running a lot quicker)
Close The 3.0 timing gear on the opposite end of the exhaust cam would be spinning in the opposite direction which puts firing sequence out. For it to work, I actually had the exhaust cam itself notched to replicate 3.0 CMPS signal waveform(originally used the RB25 waveform which is common knowledge locally which is why my RB25 ECU equipped VQ35 got up and running a lot quicker)
OK - that's clever - now I really would like to see photos of this mod. What did you use for a cam sensor, and how did you mount it? I guess that you had the rear of the exhaust cam machined to match the 3.0 cam signal?
What would it take to get a '99 Maxima ECU modified for the Biki board? A free sample ECU to dissect?
97 onwards do not have an expansion board socket... characterised by the 40 pin connecter on the board furthest from the ECU plug. The R33 Skyline ECU was also in the same situation, with no expansion socket although an R34 ECU with a different ECU supplier is chippable.
Engine, cams and new flywheel are due back from machining and balancing early next week. This forum helped in my decision to upgrade the oil pump if I am going to be spinning the engine hard Plenty of pictures to post once the engine is in the workshop and being re-assembled Even upload some videos now my video camera docking station is functional.
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Linear Mode
