Jump to content
SAU Community

Rb20 Power Fc On Rb25?

Kwyjibo

By Kwyjibo,
in Engines & Forced Induction

 Share

Recommended Posts

Kwyjibo Rising Star

Kwyjibo

Posted
Posted

I have been planning on buying a eManage Ultimate for my RB20 as I will be upgrading to an RB25 when the engine dies. I figured as it is a piggyback it will be very easy to change over. I have now found a RB20 Power FC at a decent price which I am considering purchasing. I was wondering if I would be able to run a 25 on this whenever I need to change. From what I can see the pinouts are slightly different, and that running a RB25 PowerFC on an RB20 is easy, so am I right in thinking doing it the opposite way around would be fine?

As I understand it I would just need to get it retuned(obviously), and that I wouldn't have VCT. Is this correct?

Link to comment
https://www.sau.com.au/forums/topic/272997-rb20-power-fc-on-rb25/
Share on other sites
mad082 Grand Master

mad082

Posted
Posted

if it was me i would be just putting a nistune daughterboard into the stock rb20 ecu and going that way (depending on just how cheap the PFC you found is). it will require you to use the rb20 loom, but my mechanic said that is how he would do it if he was to do the swap again (recently put a rb25 into his ceffy)

Kwyjibo Rising Star

Kwyjibo

Posted
  • Author
Posted
if it was me i would be just putting a nistune daughterboard into the stock rb20 ecu and going that way (depending on just how cheap the PFC you found is). it will require you to use the rb20 loom, but my mechanic said that is how he would do it if he was to do the swap again (recently put a rb25 into his ceffy)

I've considered that but the tuner I am going to seems to be most comfortable with Power FC's and eManage ultimates. They also seem to be a more adaptable and popular ECU. I'm in Canberra so the market for tuners isn't large. I might look at the option anyway, could always go up to Sydney and get a Toshi remap done.

Kwyjibo Rising Star

Kwyjibo

Posted
  • Author
Posted

Thanks. I think I'm going to buy it then because if prices stay stable I can always sell it for more than I payed. One more question, I was playing with a HC today on a friends car as well as looking over the Power FC FAQ site and couldn't see anything to set the Power FC to default.

The one I'm buying will be running exactly the same setup as mine however I would like to set it to default before all the parts are installed to make sure it runs ok. Is there anyway to do this on the unit?

Cheers,

Adrian

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

    • Waders360
      M35 Brake caliper replacement

      By Waders360 · Posted

      Hi from Canada, Both of my calipers are starting to fail. My car is a 2005 M35 Stagea ARX and I can't seem to find any parts or any cross reference caliper that would fit my car. Is there a company or a similar caliper that would fit and I could replace the OEM one. Or if anyone knows where I can find a new OEM. Any help is very appreciated. Let me know!
    • 25zenki
      S1 rb25/s14 starting problem

      By 25zenki · Posted

      Maf is a question mark but TPS  I have set at 0.47, the fact that I’m getting proper voltage range out of it with the key on leads me to believe it’s functioning properly. I’m getting proper voltages on basically everything. I still need to look up voltage ranges for z32 maf and test that 
    • 25zenki
      S1 rb25/s14 starting problem

      By 25zenki · Posted

      Honestly no not at all, but it’s a very basic tune, it’s stock injectors q45 tps and z32 maf. Other than that it’s a completely stock base map. The file is from nistune and from my understanding if it was tune related I would be able to unplug maf and tps and it would still start even if it was a really shitty start. I have tried starting it with coolant temp, maf, and tps unplugged none of those 3 togethor or individually changes anything 
    • Matt Z
      SAU NSW - Bathurst Run 2025

      By Matt Z · Posted

      🏆 Skyline Supremacy Meets Mount Panorama Magic 🏆 Join SAU NSW as we take the long way to Bathurst, the home of GTR greatness. Saturday 30th August 2025 7:00AM Meeting Hanna Park North Richmond 7:30AM Departure Cruise Via Bells of Line Road 9:00AM Arrival to Stop 1: Golden Poplars Meadow Flat 9:45AM Arrival to Final Destination: Mount Panorama Motor Racing Circuit Meet Location: Hanna Park North Richmond Stop 1: Golden Poplars Meadow Flat Final Destination: Mount Panorama Motor Racing Circuit   *Disclaimer* There will be a lead and follow car so no one should get lost. If you would like to attend or bring others along please put your name down and a +1 as numbers will be needed prior! This is NOT a race and we will all be adhering to all road rules. If this is what you want please come to one of our many track days. This is an official SAU:NSW event and will be run under a CAMS permit. One of the things that really sets our club apart is our commitment to being true enthusiasts. When on normal roads we strive to maintain good relations with the authorities as well as the public in general. When attending one of Skylines Australia NSW events please try to: • Be aware of surrounding environment and act accordingly. • Drive courteously on the state’s roads as a true enthusiast should. • Understand how important it is to maintain the good name of SAU NSW and thus, treat others accordingly. • Any misbehavior will not be tolerated and you will be asked to leave.
    • soviet_merlin
      My BMW E39 528i touring

      By soviet_merlin · Posted

      What does it look like with highway driving? And yes, I had a similar thought as Duncan. It looks quite similar in my Stagea and I have made myself accept it as normal. Might have to look into it some day   Highway gets as low as 10l/100km on my end so I'm not as worried about it being a mechanical issue. More likely just the tune on the haltech.
×
×
  • Create New...