gotech functionality in your nissan ecu!

regarding prices,

the emulator mentioned in the begining of this thread set me back $175
shipping was $45 , duties was R175 so roughly, depending on the exhange rate about R1800 in my grubby paws..

the software, nistune is a bit overpriced, $200 for a licence.. 😮
so about R3500-00 all in.

for this money you gain full control over ALL aspects of your stock ecu.. remember the reason for going to aftermarket is to gain control over all aspects of running the motor.

this software gives you dropdown box control over any changes you may want to make:
example : you want to run a 80mm afm off a 300zx on your ca18det (flow enough for 500bhp) ?
select the afm from a dropdown box and the program does the rest for you, changing the code and maps for you ( remember the emulator keeps the eprom image in like a virtual space for you)
the ecu does not know its not reading from a eprom chip, so all your changes is live.. (obviously you will have to stop the motor running to make changes like different afm ect.)

now for the part i will get flamed for 😂

IMHO a aftermarket ecu simply cannot yet match the sofistication of a oem
ecu.. nissan spent millions back in the day , fine tuning their stock control systems, refining every little aspect to be able to sell the car all aver the world..
this is in no way saying that systems like gotech, dicktator ect. is no good,
they have also spent a lot of money, and if the mods you want to do is not supported by a stock ecu, or your ecu is simply not known well enough
(where fuel maps are,what this does, what that does),
you have no choice, go aftermarket

just dont think that your stock system is inferior , it was simply just not built to be accesed by the end user.. (maniac behind the wheel) 😈

guess this all comes down to personal choice .. i already have a gotech pro running in my 200sx , i am now trying this on my 300zx
two very different approaches ,time will tell ..

sheesh, im on a roll tonight 🙂

One thing about the std ECU's on the Nissans are that they have a self-learning fucntionality. Does this system stop that? Because if not then the parameters may change over time after you've mapped them...

as far as i know the older ecu's kept their self learned parameters in onboard ram, which is why if you disconect the battery, all learnt is lost..
meaning that this was more meant to compensate for wear of the cas, ect.
so the ecu cannot make changes to the fuel map ect, as stored in the eprom (cannot write to eprom) , newer ecu's (bmw for instance) use onboard flash memory ,and can so actually unlearn itself back to stock..
the bastards 😂

Yeah I here you 300zx. Some sources I spoke to reckon the stock ECU on a SR20 is technologically the equivalent of a R15-R20k aftermarket system.

For my sx I think I will definitely look into this Nistune option as I'm gonna stay CA. As for the software license, heck we can get around that one right 😂

i agree with you 300 - the stock ecu is very lekka.

unfortunately i didnt have one, or a wiring harness, so i was kinda forced to go with an aftermarket one!

as for making a plan - if enough people do that, then fewer and fewer systems will be available!!!

Doctor G wrote:

Yeah I here you 300zx. Some sources I spoke to reckon the stock ECU on a SR20 is technologically the equivalent of a R15-R20k aftermarket system.

For my sx I think I will definitely look into this Nistune option as I'm gonna stay CA. As for the software license, heck we can get around that one right 😂

This is what I enjoyed about the BIKIROM...

It was very affordable, like R2200 i think....
You can from there have full control over the stock ecu, and the software is free, download it from BIKIROM and have a look.

You can select injector size, even select what MAF you running, like sr20, or z32, etc. and then it works out a base map for you to start with.... from there you can fine tune etc.

You tune realtime via laptop plugged to USB. allows data logging etc.

very nice system.

you see now - if you had offered a wiring harness with that awesome deal of yours Mypro, then i def would've bought it!

300sx your ilistration of wasted spark is not correct for the CA18DET motor. I dont want to start a fight but here goes...

Each coil is only triggered by the ECU, it has its own 12v line directly to it. What you will be doing is firing it twice, not sharing the current but sharing the trigger. With a 4ms charge time there is no problem with the coils charging so you wont get any breakdown at high rpm.

Okay what I'd like to know is if I ran a bikirom or Nistune etc. Can I then ONLY run the std nissan coils? What if they die and I can't find decent replacements. Can I use a substitute system liek the gotech universal coils with plug leads?

veecee wrote:

you see now - if you had offered a wiring harness with that awesome deal of yours Mypro, then i def would've bought it!

ha ha ha, o well.

My deal included the sr20 computer and the biki and the usb connection - software for free,

still have it if anybody interested.... 1080.

Why dont you just wire in MSD blaster SS coils with leads?
Google it... it has been done on the stock Set-up a number of time in AUS and he US

Then just Run "nistune" and sorted well maybe after a bigger AFM and injectors 😂

What if they die and I can't find decent replacements.

This is my major issue and with it the old afm. That is why I think to go the gotech/diktator or what ever route.

Chem 8)

I had a look it the systems as well, and i think they will work very good!

Can you perhaps give a rough estimate on the cost?

Allso,are you running a CA18 ecu?

Thanks,

Karis

Each coil is only triggered by the ECU, it has its own 12v line directly to it. What you will be doing is firing it twice, not sharing the current but sharing the trigger. With a 4ms charge time there is no problem with the coils charging so you wont get any breakdown at high rpm.

sorry , how do you share the trigger , but not the current?

the illustration is using a gotech pro with the original coilpacks... not the stock setup

to be 100% accurate, this is what the pic should look like ,since the stock ignitor earths the coils.. the point remains valid though..

http://thumbnails.imajr.com/COIL-1.bmp-1041114.jpg

The stock ignitor will just earth 2 coils at once, where will the current be lost?? Each coil has its own +12v supply so will all have an equally strong spark?!

You may have an issue around 7000rpm with regards to charge timing, but most dont rev past that anyway.

ah ok, i see where we are talking past each other.. the gotech ecu cannot trigger the stock ignitor

so if you use the gotech built in ignitors, you end up using one ignitor for two coils..

the gotech has its own drivers.

4 of them if you get the TS version.

so you dont need the ignitor.

im talking about the gotech pro... which has 3 drivers.. meaning you you would have to use 1 driver for two coils

you would not need to use wasted spark if you have four ignition drivers
😉

yes i know you mean gotech pro...

but like i said before - the gotech dudes will convert your PRO to the TS version so that you can have the 4 drivers. 😈

then... no problem!

went to visit the dudes at gotech this morning to have my gotech pro converted to the TS version - with 4 ignition drivers.

it took all of 10 minutes and my ECU was handed back to me.

fantastic service in my opinion!!!

cant wait now to get this sr20det running!