Jump to content
SAU Community

R33 Computer Upgrade Help

snowy01

By snowy01,
in Engines & Forced Induction

 Share

Recommended Posts

snowy01 Newbie

snowy01

Posted
Posted

Hi I've got an r33 gtst s2. I have done a fue mods to my care from suspension breaks through to the engine which is where I need help. I have upgraded the coil packs, inter cooler, pod, turbo timer electronic boost controller and a new upgrade turbo to the car. I'm wondering if I should now do the computer and if so what to go for. My budget is limited as I've blown the bank ont the rest of the mods any ideas. I've tried doing a tone of research but keep coming up with all different things

Link to comment
https://www.sau.com.au/forums/topic/420334-r33-computer-upgrade-help/
Share on other sites
GTSBoy Grand Master

GTSBoy

Posted
Posted

This has been covered a bazillion times and I should tell you to search and/or read the stickies. Nevertheless....

Easiest is to buy a PowerFC. Next easiest is to get a Z32 ECU modded with Nistune to suit R33. After that there are various aftermarket ECUs that come in plug in form.

If you really want to bump the power you're going to run out of injector and AFM capacity, so you'd need to upgrade those. AFM only needed with PowerFC and Nistune, otherwise you convert to MAP sensing.

You need ay least $1500 to start this exercise. Got to buy the ECU, get it fitted and tuned. Injectors and AFM upgrades will cost more than another grand, and you will want to upgrade the fuel pump probably even before you have to do those (old std fuel pumps are just waiting to diw and kill your engine, especially when you wind up the boost).

MrStabby Grand Master

MrStabby

Posted
Posted

For budget, contact Toshiba on this forum. He will be able to do a mail order remap for your mods at cheap price.

Username = toshi (unless he's changed it). You'd still want to do a dyno run after just to make sure it doesnt ping. Toshi has to make his remaps on the assumption that all the components in your car are working normally, if they're not you may find that while it wasn't a problem with the super conservative factory tune, it is a problem with the remap. Also, the remap tune can never be as good as a proper dyno tune, however, it will be way better than the factory tune.

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
 Share
Go to topic listing


  • Similar Content

  • Latest Posts

    • GTSBoy
      New kid on the block

      By GTSBoy · Posted

      The wiring diagram for the R33 RB25 is freely available, and is essentially the same same as most other RBs (just with differences as to which pin # does which job). To get the ECU to power up, you just need to provide power to the ECCS relay, and have the other power feeds that come in from the top left of the wiring diagram (wrt the ECU) that give perma power to the fuel pump relay, the ECU itself, etc etc, all connected. When you put power on all these it will just come to life. It's pretty clear from the diagram what needs to happen. Just follow the lines from the 12V + supply stuff in the top left over towards the ECU. I've even posted snips of such diagrams (not for vanilla 25, I think for Neo and 26) to various threads here in the last few months, talking about what it takes to get the fuel pump and FPCM up and going. Search these up and they will help get you started on doing the same with the vanilla 25 diagram. Hell, for all I know, I've done the same with that one in years past and have forgotten.
    • Duncan
      New kid on the block

      By Duncan · Posted

      Yep...so unless someone posts up the answer you will need to probe from the ECU connector to the dash plug with a multi meter in continuity mode to trace the wires.  Note the ECU has multiple - and + (and across different key settings - Battery, IGN and Start) and most likely the power is fed from the connector(s) that is normally near the left hand headlight.
    • Songo
      New kid on the block

      By Songo · Posted

      Thanks Duncan, I am actually just trying to get the Rb turning and running with the RB25DET S2 original loom itself  I am just trying to get it going outside the body and not thinking about the S15 or trying to match anything to the S15 loom at all I am only trying to see if anyone has done this and what pin they found to be the ignition trigger and ECU+/- on the dash connector, that's about it. Thanks  
    • iain_ST44GA
      M35 VQ25DET starter motor

      By iain_ST44GA · Posted

      Hi Guys, Does anyone know any aftermarket part numbers for a starter motor to suit the VQ25DET? I can find lots of alternative part number for the VQ35DE, which I assume would fit, but there is a lot of conflicting information out there. Thanks..
    • Murray_Calavera
      R33 GTR running -9 with no tune

      By Murray_Calavera · Posted

      I don't understand how this hasn't boiled down to - Upgrade the turbo when you have everything required. ECU, injectors, fuel pump, turbo, etc. Do it all at once.  If you don't have everything required, just enjoy the car as it is and keep saving up your pennies. 
×
×
  • Create New...