Jump to content
SAU Community

Gtx2863 On Rb25Det

Roundcakes1
 Share

Recommended Posts

Roundcakes1 Rookie

Roundcakes1

Posted
Posted (edited)

Hello,

I am attempting to drop a GTX2863 in and i was wondering if anyone has tried this setup, or currently running it. Supporting mods will be Blitz SE FMIC, Nistune, Z32 AFM, 650cc injectors, fuel pump, 3-1/2" full jap exhaust, and a couple of other little computer bits and pieces. Stock internals, but healthy engine. I've been told around 250-290rwkw (maybe) on around 16 or so PSI, depending on tune. Before anyone asks why I'm not putting a GT3067 or something on, its because i want response, fast spool, and stock fitment. Also I can get one quite cheap, brand new installed for $1600 with everything needed to fit it.

Usually these turbos go great on a RB26 or something. Im sure one would run well, being rated for around 315rwkw.

Thanks anyone who has the time to reply, I appreciate your help.

John.

Edited by Roundcakes1
Link to comment
https://www.sau.com.au/forums/topic/425184-gtx2863-on-rb25det/
Share on other sites
Lithium Grand Master

Lithium

Posted
Posted

Hello,

I am attempting to drop a GTX2863 in and i was wondering if anyone has tried this setup, or currently running it. Supporting mods will be Blitz SE FMIC, Nistune, Z32 AFM, 650cc injectors, fuel pump, 3-1/2" full jap exhaust, and a couple of other little computer bits and pieces. Stock internals, but healthy engine. I've been told around 250-290rwkw (maybe) on around 16 or so PSI, depending on tune. Before anyone asks why I'm not putting a GT3067 or something on, its because i want response, fast spool, and stock fitment. Also I can get one quite cheap, brand new installed for $1600 with everything needed to fit it.

Usually these turbos go great on a RB26 or something. Im sure one would run well, being rated for around 315rwkw.

Thanks anyone who has the time to reply, I appreciate your help.

They are not rated to 315rwkw, more like 315kw at the crank. There is no straight bolt-on version that I am aware of, you'd need an aftermarket/custom kit - be that including a modified/aftermarket housings or whatever. It will most likely require a reasonable amount of custom work.

Roundcakes1 Rookie

Roundcakes1

Posted
  • Author
Posted (edited)

They are not rated to 315rwkw, more like 315kw at the crank. There is no straight bolt-on version that I am aware of, you'd need an aftermarket/custom kit - be that including a modified/aftermarket housings or whatever. It will most likely require a reasonable amount of custom work.

I see, well I'm assuming he has the kit or modded housing that will go straight on. Apparently this guy has sold a couple of them. I think 315kw at the crank will still be around my goal power.

Anyways. Does it sound like too much work and money for only 315kw at the crank. I could just lash out, spend another couple of hundred and buy a GT3076, or GT-RS or something similar.

At least these are tested and proven. It sounds pretty sad to say, but I've seen some pretty good GT3076 deals with hose kits and gaskets, including new exhaust manifold for around the $2k mark. (I would prefer a low mount though)

Thanks for your help.

Edited by Roundcakes1
hypergear Grand Master

hypergear

Posted
Posted

The GTX2863 is a tinny turbo. I don't believe they can pump 315rwkws.

I made a billet 64mm and 68mm comp wheel and used them in a customized one trim larger +2mm exd turbine based on the GT28 in a .86 rear and only managed to squeeze 276rwkws out of the 64mm and 298rwkws out of the 68mm. Those are E85 results on high mount externally gated setup.

My prediction on the GTX2863 is probably 230rwkws on pump 98 if used on stock manifold internally gated only if you run it on .86 rear. They will be red hot on .64.

Jayden.K Collaborator

Jayden.K

Posted
Posted

spend another couple of hundred and buy a GT3076, or GT-RS or something similar.

i use a gt3076 with .63 rear. its very responsive. have no issues with it, standard manifold with mild porting, internal gate. using a apexi avcr boost controller as the small rear housing causes boost spikes. boost controller fixes this. i went from a gtrs to a 3076 and for the power difference (which dosnt feel like much, no dyno run as of yet) i wish i went for the .82 housing and sacrifice response over power.

point is get a 3076 with a small housing over the gtrs. thats my 2 cents. most people frown on a small housing gt3076r on a rb. best results will require WMI or E85 and external gate.

GTScotT Grand Master

GTScotT

Posted
Posted

For what you would get from a GTX2863 on an RB25 I honestly believe you would be better off with a simple 2IU highflow from Hypergear.

User feedback on the 2IU is hard to overlook, some guys have used it for serious track and hillclimb duties to great success and response is what you would want it to be.

Its just too much effort to put on a 2863 with an unknown guinea pig rear housing when under $1,000 will have your stock turbo bolt back on LIKE STOCK and make the same 250rwkw mark with awesome response too.

wolverine Grand Master

wolverine

Posted
Posted

For what you would get from a GTX2863 on an RB25 I honestly believe you would be better off with a simple 2IU highflow from Hypergear.

User feedback on the 2IU is hard to overlook, some guys have used it for serious track and hillclimb duties to great success and response is what you would want it to be.

Its just too much effort to put on a 2863 with an unknown guinea pig rear housing when under $1,000 will have your stock turbo bolt back on LIKE STOCK and make the same 250rwkw mark with awesome response too.

--------------------------------------------------------------------------------------------------------------------------------

You did a search didn't you..... ;)

GTScotT Grand Master

GTScotT

Posted
Posted

--------------------------------------------------------------------------------------------------------------------------------

You did a search didn't you..... ;)

lol no?

What am I missing?

If its re the 2IU results you know the HG thread is almost my second home, I don't miss anything there. If re 'mystery housing' I actually wasn't making any assumptions, but now that you have called on my mamories I do recall there being one for sale not that long ago, but I could swear it was a 2867 in a sonic housing.. Not 2863.

Feel free to fill me in though.

wolverine Grand Master

wolverine

Posted
Posted

You are missing nothing it was a lame attempt at humour about searching this site to find answers to questions that have been asked several times. At least this thread has brought up a new turbo combo that we haven't seen results for yet. Nevertheless for 250rwkw-ish it is hard to go past a well made hiflow exactly like you said.

GTScotT Grand Master

GTScotT

Posted
Posted

Haha damn man, sorry for being so slow. Was a good call now that I've been spoon fed some IQ.

Agree, it was a quick wind down but still will solve any questions if anyone did search 2863 RB25.

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
      Boost cut after swap(RB25DET NEO) R34

      By GTSBoy · Posted

      Don't even try to run it on the stock ECU if you're going to have the boost controller bring boost above ~10 psi. I've already told you that. If you use the Nistune ECU, you will need to CAREFULLY read the available documentation for Neo tuning, and read some threads on the Nistune forums, to discover the various things you have to do to prevent the ECU from going bananas when the boost is too high. The is a table associated with th boost sensor that must be modified to prevent it from shitting the bed. This is just one of the things that you will need to do to the tune in Nistune, because the Neo turbo ECU will be expecting to see a number of things (such as the TCS) that are not there, and you have to block the DTCs on those. It is totally not surprising to me that you are having the problems that you are, but the solutions to these problems have been known for >15 years. So just get it done.
    • dyl33
      VOLK RACING GTC CENTRE CAPS

      By dyl33 · Posted

      Centre caps $250
    • Kapr
      Boost cut after swap(RB25DET NEO) R34

      By Kapr · Posted

      Hi. Sry iam not a mechanic and iam not at the car atm so i dont know 100% but they told they measure those and even try to change those. AFM they have two. Coils are new a they have my old one too. Plugs too. ECU...we have 25 NEO stock and Nistune 25 NEO.   But i dont know if any one those could be the problem and why/if/what can cause this, Only thing they did not check is fuel...but that walbro 255 is new(like 1,5 years)... That fuel pressure gauge idk...but i let them know Any suggestions?   EDIT: how can they know if it is like you say he ECU pull power when it reaches a specific boost level that is too high? Tha car has boost controler
    • Duncan
      Boost cut after swap(RB25DET NEO) R34

      By Duncan · Posted

      Can you clarify what you mean by boost cut, do you mean it misfires both when under load (driving) and when stationary and out of gear? Or does the ECU pull power when it reaches a specific boost level that is too high (boost control issue)? Does it occur at idle with no throttle? When you say "the ECU is OK", what ECU is it and why do you think it is OK? Have you used the NEO ECU, and if so do you have a MAP sensor attached? Same for the AFM, why do you think it is OK? Do you have any way to put a fuel pressure gauge on it (even just a mechanical one between the fuel filter and fuel rail)?
    • Kapr
      Boost cut after swap(RB25DET NEO) R34

      By Kapr · Posted

      Hi.. Just another problem. So maybe you can help. I(my mechanic) done swap from my RB20DE NEO to RB25DET NEO. Everything is OK but we have a boost cut. Coils/Plugs are ok...AFM is ok. ECU is ok. I have Walbro 255 but it "changed" sound few months ago(you can hear it ouside) you did not hear that when it was new(maybe faulty?) Sooo...what now? What can cause this boost cut? It is even when you standing still...
×
×
  • Create New...