Jump to content
SAU Community

What turbo upgrade for rb25 in gu patrol

Gu rb25

By Gu rb25,
in Engines & Forced Induction

 Share

Recommended Posts

Gu rb25 Rookie

Gu rb25

Posted
  • Author
Posted

That would be different at least i do know a guy that just sold a mighty boy with a supercharged rb think it was a vortek or something like that.

I think so far ive been sold on the hiflow from hypergear seems to get good results and heaps of people run them

Dale FZ1 Veteran

Dale FZ1

Posted
Posted

^^ Understood :)

I'm thinking your targets are a bit wide of what's reasonably achieveable and useful.

Stock 25DET "might" be making around 150-160rwhp through the Patrol drivetrain and 4wd tyres.  I'd get an idea of what it's making before trying to set any target other than the useable rpm range. 

My thoughts would be 2000-5000rpm.  But a short stroke RB25 is a boy being asked to do a man's job when it comes to any off road work.

And I'd say the same engine + tune removed from a Skyline and stuck into a Patrol would lose 50hp at the treads.  Any Patrol making 300rwhp is making some pretty serious stick compared to a stocker.

Keep things a bit conservative and you'll have a fun truck without mega $$ to achieve it.

  • Like 1
Gu rb25 Rookie

Gu rb25

Posted
  • Author
Posted

Thanks for the advise dale fz1 im going to organise a tune in the next few weeks so hopefully ill have a base line to start at and see how i go from there.

Im impressed with its performance considering the weight at the moment so it can only get better :D

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

    • Ozdavroz
      New to R32 ownership

      By Ozdavroz · Posted

      Very nice - I also have a 92 GTST and hardly see any others around these days
    • xmanz
      Video Edit Programs

      By xmanz · Posted

      When I need something else to edit, I use Movavi. A friend who does video editing on a daily basis recommended me) it's an easy video cutter to use for beginners
    • Skidmore
      Video Edit Programs

      By Skidmore · Posted

      I need to edit some videos for work but I'm not good at all this. Which video editor can you recommend?
    • GTSBoy
      HY51 Fuga Hybrid

      By GTSBoy · Posted

      I think you're really missing the point. The spec is just the minimum spec that the fuel has to meet. The additive packages can, and do, go above that minimum if the fuel brand feels they need/want to. And so you get BP Ultimate or Shell Ultra (or whatever they call it) making promises to clean your engine better than the standard stuff....simply because they do actually put better additive packages in there. They do not waste special sauce on the plebian fuel if they can avoid it. I didn't say "energy density". I just said "density". That's right, the specific gravity (if you want to use a really shit old imperial description for mass per unit volume). The density being higher indicates a number of things, from reduces oxygen content, to increased numbers of double bonds or cyclic components. That then just happens to flow on to the calorific value on a volume basis being correspondingly higher. The calorific value on a mass basis barely changes, because almost all hydrocarbon materials have a very similar CV per kg. But whatever - the end result is that you do get a bit more energy per litre, which helps to offset some of the sting of the massive price bump over 91. I can go you one better than "I used to work at a fuel station". I had uni lecturers who worked at the Pt Stanvac refinery (at the time they were lecturing, as industry specialist lecturers) who were quite candid about the business. And granted, that was 30+ years ago, and you might note that I have stated above that I think the industry has since collected together near the bottom (quite like ISPs, when you think about it). Oh, did I mention that I am quite literally a combustion engineer? I'm designing (well, actually, trying to avoid designing and trying to make the junior engineer do it) a heavy fuel oil firing system for a cement plant in fricking Iraq, this week. Last week it was natural gas fired this-that. The week before it was LPG fired anode furnaces for a copper smelter (well, the burners for them, not the actual furnaces, which are just big dumb steel). I'm kinda all over fuels.
    • LjB123
      RB25 Crankshaft Differences

      By LjB123 · Posted

      Well my freshly rebuilt RB25DET Neo went bang 1000kms in, completely fried big end bearing in cylinder 1 so bad my engine seized. No knocking or oil pressure issue prior to this happening, all happened within less than a second. Had Nitto oil pump, 8L baffled sump, head drain, oil restrictors, the lot put in to prevent me spinning a bearing like i did to need the rebuild. Mechanic that looked after the works has no idea what caused it. Reckoned it may have been bearing clearance wrong in cylinder 1 we have no idea. Machinist who did the work reckoned it was something on the mechanic. Anyway thats between them, i had no part in it, just paid the money Curiosity question, does the oil system on RB’s go sump > oil pump > filter > around engine? If so, if you had a leak on an oil filter relocation plate, say sump > oil pump > filter > LEAK > around engine would this cause a low oil pressure reading if the sensors was before the filter?   TIA
×
×
  • Create New...