Jump to content
SAU Community

Recommended Posts

few days ago I purchaced my first skyline an r33 gtst

iv been tolds its running 16 pounds of boost which I find ridiculous

as it doesn't feel or seem nothing like it, iv had a look at the ecu

and looks like a stock one to me as I said im not to well with skylines

so after abit of reading around I have a couple questions

if getting an aftermarket ecu is a nistune board still needed for a tune?

iv heard of several places that now remap the r33 ecu?

im just after a basic tune, an alternative to paying $800+ just for the nistune

just to get everything back on track for now as the car seems like running shit for that much boost..

how would this prove the ecu isn't stock though

I don't doubt the boost im just assuming he upped the boost to that amount of pressure with zero ecu upgrade or tune

which I believe is the reason why the car feels so sluggish

Because a R33 GTS-25t will run like absolute shit at 16PSI on a stock ECU. The standard ECU will dump in fuel and retard timing pretty harshly.

That's a stock R33 turbo auto ECU. Unless it has been Toshi tuned or similar (which is not so likely) then it is a piece of crap that will not appreciate being run over 10-12 psi. Massive pig richness and a complete absence of ignition advance will occur. Horrible brick wall lack of power feeling to go with it.

Also, if you are running 16 psi, there is a good chance that you will destroy the turbo any time you boost it up. They just don't like it. Too hot, too fast, too bad.

Turn the boost down to something safe an keep it that way until you can afford to replace the ECU totally.

By the way. Just in case you think you can, you cannot Nistune that ECU. R33 ECUs won't do it. The alternatives are to use an R32 or a Z32 ECU, both of which are less than ideal solutions. For the effort and compromise involved, if I were trying to tune an R33, I'd get an Adaptronic or some other suitable aftermarket ECU and just live with the defect threat, such as it is.

No. Nistune is a daughterboard conversion that you put into a Nissan factory ECU (as long as it's not an R33 one!) to turn it into a programmable ECU.

Your car is an auto? That can be a complicating factor. A lot of people like to use the PowerFC, but as far as I can remember they don't like to work on auto R33s. The problem is that there is a comms link between the ECU and the TCU (gearbox computer) that gets upset when it's not connected. The TCU goes into a sulk. I think - I don't know for sure, because as soon as I hear "auto" I go to sleep and dream of manual conversions.

yeah though so, I doubt its toshi tuned either according to a quick look up his located in NSW and im from VIC

so back the the actual question what would be a slightly inexpensive alternative then getting nistune installed?

Second hand powerfc.

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

    • Hey crew, Failed my WOF cause of a lower control arm, and I've decided to hit both arms, and also the compression rods at the same time(seems they're gonna be the most likely upcoming failure points from some discussions with the lads over on the G35 reddit). I've looking at these form Z1:  https://www.z1motorsports.com/front-suspension/hayaku-automotive/hayaku-g35-front-compression-rod-p-40716.html https://www.z1motorsports.com/front-suspension/hayaku-automotive/hayaku-g35-front-lower-control-arm-p-40674.html I asked Z1 if they'd work as it's the same platform, just RHD vs LHD. I basically got told "Lol dunno". Specifically they aren't aware of any difference but can't guarantee fitment as they haven't done it on a 350GT. So guess I'm asking is if there is any issues with using 2005 G35 coupe suspension parts on a 2005 350GT coupe? Orginally I thought it could be something in the way of the arms that each control arm is designed to be positioned around, but that'd be an engineering nightmare for Nissan needing two different shaped control arms 😅
    • ^ This. The mode door actuator is a common failure, as is the actuator and/or the actual valve for the coolant flow control valve. I also don't know how available the mode door actuator is these days. I've been meaning to look into it and get one from wherever is possible, to keep in the shed for the rainy day when mine eventually fails. Anyway, the advice to you is to search the usual NOS part supply places, or even just go to Nissan and see what they list.
    • Have you got a pic of the actuator? My guess is that unit has failed internally and was flopping around, so the previous engineer who owned it forced it to be fully open to cold air (blocking the heater core path). As far as you can tell, is anything else wrong in the system? Likely you just need a new actuator (not sure how available they are) and then "installation is the reverse of disassembly"
    • I'm happy with the Lsailt unit that I put in, it puts full Android on the top screen so you can run whatever Nav and other Apps you want, while still existing inside the factory functionality like automatic reverse cams, audio input switching, retains factory bluetooth etc. Not cheap and the install was moderate (not simple, not hard) Yours is a V36 not V37 though right?
    • Yeap, all the NC's that I originally looked at that had a hard top were PRHT, which makes the roof line look horrible, hence why I said nope to them My only caveat for another MX5 was it needed to have a hard top, and initially I didn't think you could get a detachable hard top for the NC,  like my NB had Again, a big thanks to Matty for helping me source the detachable hard top for my little girl, they are as rare as hens teeth in Australia, and the few people who have them, keep them Also to Greg, for initially pointing me in the NC direction NC PRHT 🤢🤮 Not mine (I really should take more photos of my car), but a NC with the detachable hard top 😁 To me, the difference in how the detachable hard top roof line looks, and how it actually follows the bodies lines, like they do on NA's and NB's, is chalk and cheese compared to the bulbous looking PRHT  
×
×
  • Create New...