Jump to content
SAU Community

Recommended Posts

Hey all,

Mate of mine and i were talking today about the fuel economy of the Stagea, and the fact that the R33 Skyline has a better state of factory tune than the Stagea.

Then he asked me if the ECU from a R33 automatic Skyline be able to installed into the Stagea.

I just don't know!!

Also, while I have your attention, I've asked Sam (Dr Drift) about retuning our factory ECU and he has quoted around $1300. My wife didn't like the thought of spending that much money, but then I had another idea. My R31 wagon (RB20DET Silvertop) has a SAFC2 fitted. Can we just move the SAFC2 from my car into the Stag, then get the R32 ECU chipped in my car.

Thanks for you time, and constructive comments.

Cheers, Greg.

Link to comment
https://www.sau.com.au/forums/topic/185590-ecu-replacement-question/
Share on other sites

The ECU isn't quite the same as a R33

the ecu would be closer to a R32 GTS-4, (R33 GTS-4 was NA only) but it shares the engine management, albeit with a different tune, with the R33, but for some reason the plug and pinouts are the same as a R34. If you are willing to put a new plug on the loom I suppose anything is possible, I would just put the SAFC2 on the std Stagea ECU and go from there.

*disclaimer* all the above is S1 only. (the limit of my experience :dry: )

I went to see Dr drift a month or so back and was informed that he could do the ECU gig. It sounds like a great way to go.but the change over seems a pain...I dont drive my car much at the moment...maybe I could just give the ECU and wait...any idea of the time to have it done? From what I understand once done it gives total control of the ECU..I havent touched my car since I got it and think its time to give it a bit more grunt..this mod would be an all around bonus by the sound of it.

The turnaround is around 2 weeks, but I have a couple of changeoiver ECU's here for R33s. If you can get me the ECU numbers from your car, I can hunt down a standard ECU and send that away then swap with yours? Or we can even try the R33 ECU in your car, see if that works?

Sam.

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now


  • Similar Content

  • Latest Posts

    • Means something is not set up right, tune/calibration related.  
    • Finally replaced the previous temporary mesh indicator surrounds (temporary was the last 10+ years 😂) with a 3D printed GTR style version for the front indicators. I think it looks a lot nicer than the old setup and at least the indicators now point in the correct direction rather than angled off. Needed a little bit of tweaking to deal with the intercooler piping but got there in the end. Old and new photos below. 
    • It's weird to me that you say this because I'm pretty sure locals with relatively standard standalone tunes (boost/barometric compensated alpha-N) still have driveability issues when they pop intercooler hoses. Maybe with enough data I can just train some kind of model that spits out an expected grams/cyl given every sensor input except MAF like what FCA did with their Pentastar 3.6 ECU logic. Basically stock everything. The main motivation honestly is to have a sensor that can be a decent baseline source of truth. In scenarios you're describing obviously it won't work every time but it seems to me the number of corner cases that exist in MAF load is maybe not as severe and difficult to manage vs ITB alpha-N with some MAP/barometric compensation.
    • What are your plans for your blow off valves? Purely plumb back? How soft will the spring in them be? AFM can be tricky to get super smooth and nice, especially depending on the rest of the system, and then can be very easily upset if something slightly changes. IE, even if you run recirc blow off valves, you could still see issues getting it to behave at certain load points as turbos might start to spool, but you release the throttle but it's not enough pressure to crack the bov open to recirc, and you can end up with reversion which can cause double metering, and hence dumping of fuel into the system, and stalling the engine.   If you're going to run a map sensor for closed loop boost control from the ECU, what makes you want to keep the AFM?    
    • It's not bad, it's just not flexible. And say if you have any leaks between the MAF and plenum, well then your load axis goes out the window. Here's a real world scenario, I blew off an intercooler hose last track day, as the clamp decided to Bluetooth itself somewhere. Still continued to do 2 laps and drive it to the pub for a couple of beers then home. Good luck doing that with a MAF setup 
×
×
  • Create New...