Jump to content
SAU Community

Recommended Posts

Great info ...  go the sweet taste of Jack

But ... if you had RB20 setup currently, what would be the logical way to go? Which head would you use?

Also, can you use any bits from the current setup?

In R32 GTST's I prefer the R32 RB25DE top end as it doesn't have VVT. The RB20DET stuff (sensors and manifolds) all basically bolt up, so the R32 GTST wiring harness and ECU work perfectly.

Bits from the current set up, I assume you mean RB20DET. Note that the new RB31DET has an RB26 top end. So I used the injectors (S5RX7T), all the sensors, ignitor, coils, alternator, starter, oil cooler, remote oil filter, radiator (PWR), electric fan (Davis Craig), air filter (pipercross POD), heat shield, ambient air feed, Power FC, Commander, gauges (oil pressure & temp plus exhaust gas temp), sump (it already had wings & baffles), intercooler (std R33 GTR), some intercooler pipework, engine mounts, OS Giken twin plate clutch, fan belt, power steering belt, bottom radiator hose (silicone), alternator bracket, power steering pump bracket, throttle cable, fuel pumps, adj fuel pressure regulator (Nismo), adj camshaft pulleys (Jun), plus lots of mounting hardware, nuts, bolts and washers.

We also have a Stagea, and I will use some of the (no longer needed) RB20DET bits on it. Like the RB25DET turbo (GCG ball bearing hi flow), split dump (Performance Metalcraft), old intercooler (Group A Supra), some pipework, boost controller (Autospeed) and exhaust (suitably modified). I try not to waste anything that is good/useable.

Hope that helps, Happy New Year:cheers:

happy new year guys, my new years resoultion will be a RB30 GTS4

Could someone point me in the right direction for a 4WD sump adapter. I am in Sydney

RIPS are the only people I know who sell them.:P

This engine drives very nice on the street.

I still cant get over the fact that the bottom end can handle 475BHP with stock cast pistons.. lol

What about stock bearings? like ACL brand ? can they handle that power too?

SydneyKid: what ignition timing have you seen RB30DET's (with 25 heads) use on full boost ?

The max power out of standard injectors i could have got was 240rwkw but that was standard fuel pump too. upgrade the stock pump to a bigger unit and you might get more with a Adjustable Rising rate regulator - but thats really unsafe way of doing it and its a prick to tune them at times. (can be inconsistant)

  • 1 month later...

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

    • Very nice - I also have a 92 GTST and hardly see any others around these days
    • 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
    • I need to edit some videos for work but I'm not good at all this. Which video editor can you recommend?
    • 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.
    • 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...