Jump to content
SAU Community

Questions about fuel system upgrade for a R33 GTST

Zoidian
 Share

Recommended Posts

Zoidian Rookie

Zoidian

Posted
Posted (edited)

G’day,

I’m looking to get some more power out of my R33 GTST soon (about 260rwkw) with some bolt ons and I have a couple of questions for those in the know. I’m still in the part collecting stage.

With regards to fuelling, I’ve done a bit of research by rummaging through old threads and I’m leaning towards some top feed Bosch 1000cc injectors with an aftermarket fuel rail. I’ve chosen to keep the stock plenum and I just want to make sure that I’ve got the right options down before I order.

I was thinking of getting the fuel rail kit from EFI Solutions: https://www.efisolutions.com.au/top-feed-fuel-rail-kit-rb25det-r33-c34 and a set of Bosch 1000s from Goleby’s: https://www.golebysparts.com.au/products/bosch-1000cc-980cc-1150cc-fuel-injector-e85?variant=29908789297261

For injector length, I have chosen 3/4 length 14mm and for connectors & adaptors, I’ve chosen Nissan JECS to Bosch Injector adaptors. Are these the correct options to plugin to the factory harness and to clear the stock plenum? I just want to be certain before I go and place and order only to find out that when I install the injectors, they don’t clear the plenum and I’ve chosen the wrong adaptors. From what I’ve read, I’m pretty sure I’ve got it right but would like confirmation. From what I’ve read, I think that I’ll need an aftermarket FPR or will the stock one be sufficient? If I need an aftermarket one, what would you recommend? I’m also thinking of getting a Walbro 255 from Goleby’s. Is there a better choice? Keen to hear some advice. Cheers

Edited by Zoidian
robbo_rb180 Grand Master

robbo_rb180

Posted
Posted

You will need an aftermarket fuel reg (gfb, turbosmart, aeroflow. What suits your budget) and would recommend a walbro 460l pump just to future proof the setup. Ensure you do a new relay and wiring of correct size for the fuel pump. 

Zoidian Rookie

Zoidian

Posted
  • Author
Posted
9 hours ago, robbo_rb180 said:

You will need an aftermarket fuel reg (gfb, turbosmart, aeroflow. What suits your budget) and would recommend a walbro 460l pump just to future proof the setup. Ensure you do a new relay and wiring of correct size for the fuel pump. 

Thanks mate, I thought so. Budget for the injectors and related components would be roughly 1K. I'm trying to do a relatively cheap bolt on build but without lacking in quality. I've been looking at a Turbosmart FPR800 which would be around $200. Anything cheaper/better? Will probably grab a Walbro 460 instead over the 255 since there's not a huge difference in pricing between the two.

 

9 hours ago, dyl33 said:

I'd buy the whole injector kit from efisolutions, so you get the correct nozzle adaptors to suit the injectors and their rail.

Also you have to split the intake plenum to fit the taarks fuel rail.

I would too but the Bosch 1000s that go with their kit are out of stock, which is why I've thought of going to Goleby's for the injectors. Not sure what you mean by split the intake plenum for fitment of the fuel rail. TAARKS claim that it's a 100% bolt on kit. Do you have a recommendation for a bolt on kit?

 

I also saw these "plug and play" Raceworks injectors on ebay: https://www.ebay.com.au/itm/Set-New-1000cc-BOSCH-Fuel-injectors-E85-OK-for-R32-R33-R34-RB25DET-Skyline/171812524122?hash=item2800d3105a:g:b~0AAOSw7fJgRxkm

Anyone had experience with these?

robbo_rb180 Grand Master

robbo_rb180

Posted
Posted

You need to remove the top half of the intake manifold to fit the rail and injectors on then reinstall the plenum. Yes it's "bolt on" but there will still things that have to be modified. 

Zoidian Rookie

Zoidian

Posted
  • Author
Posted
30 minutes ago, robbo_rb180 said:

You need to remove the top half of the intake manifold to fit the rail and injectors on then reinstall the plenum. Yes it's "bolt on" but there will still things that have to be modified. 

Is that all he meant? I knew I'd need to do that anyway and replace the old gaskets while I'm at it.

dyl33 Mentor

dyl33

Posted
Posted
1 hour ago, Zoidian said:

I would too but the Bosch 1000s that go with their kit are out of stock, which is why I've thought of going to Goleby's for the injectors. Not sure what you mean by split the intake plenum for fitment of the fuel rail. TAARKS claim that it's a 100% bolt on kit. Do you have a recommendation for a bolt on kit?

 

I also saw these "plug and play" Raceworks injectors on ebay: https://www.ebay.com.au/itm/Set-New-1000cc-BOSCH-Fuel-injectors-E85-OK-for-R32-R33-R34-RB25DET-Skyline/171812524122?hash=item2800d3105a:g:b~0AAOSw7fJgRxkm

Anyone had experience with these?

You can still buy the injectors from golbys, you just need to make sure you get the correct nozzle adaptors to make them fit.

l would ring efisolutions and ask what nozzle adaptors you need to buy to reach 3/4 height injectors.

You can buy a wiring specialties plug and play injector harness, makes things easy. https://www.wiringspecialties.com/wsrbinhabrne.html

Dose Pipe Sutututu Grand Master

Dose Pipe Sutututu

Posted
Posted
11 hours ago, robbo_rb180 said:

You need to remove the top half of the intake manifold to fit the rail and injectors on then reinstall the plenum. Yes it's "bolt on" but there will still things that have to be modified. 

Borrow an Asian mate or your missus with small hands. (I'm Asian myself, so can be casually racist in this post 😂)

You can do it with the top part of the plenum still on.

And agree with everyone, get the full kit from EFI Solution. FPR800 will be more than enough and I suggest against the Walbro 460L on small setup. You'll be heating up the fuel and also have issues with the stock setup returning the fuel fast enough.

  • Haha 1
Zoidian Rookie

Zoidian

Posted
  • Author
Posted
19 hours ago, dyl33 said:

You can still buy the injectors from golbys, you just need to make sure you get the correct nozzle adaptors to make them fit.

l would ring efisolutions and ask what nozzle adaptors you need to buy to reach 3/4 height injectors.

You can buy a wiring specialties plug and play injector harness, makes things easy. https://www.wiringspecialties.com/wsrbinhabrne.html

I'll give EFI a ring on Monday and ask them when they'll have the injectors that go with their kit back in stock. As for the harness, I don't want to stuff around trying to get stuff out of the USA but thanks for the suggestion.

 

8 hours ago, Dose Pipe Sutututu said:

Borrow an Asian mate or your missus with small hands. (I'm Asian myself, so can be casually racist in this post 😂)

You can do it with the top part of the plenum still on.

And agree with everyone, get the full kit from EFI Solution. FPR800 will be more than enough and I suggest against the Walbro 460L on small setup. You'll be heating up the fuel and also have issues with the stock setup returning the fuel fast enough.

I probably will just wait for EFI to have injectors back in stock so that I can run their full kit. Looks like I'll be going with the FPR800 then. I hadn't begun to think about potential issues with running the 460 with my setup. Thanks, will likely be going with the 255 then.

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

    • PotatoCake
      Is r33 gtr steering wheel the same as the gtst?

      By PotatoCake · Posted

      You have just offended every teenage boy in America
    • GTSBoy
      R32 GTST - 600KW+ RB28/CD009 Build

      By GTSBoy · Posted

      Structured text and other high level PLC programing languages are not allowable in Functional Safety. They are very difficult to audit. My PLC stuff is almost exclusively oriented towards Burner Management Systems which are a particularly pernicious form of Safety Instrumented System, when implemented in an SPLC. Even the part of the code written to work in the non-safety logic part of the PLC, like with a Siemens S7-1500 series, still needs to be treated as if it was safety code, with access restrictions, code fingreprints and the like. And Allen Bradley can go EABODs. They ae full of shit. They have this whole lie going on where they say if you use a ControlLogix controller and its IO, and then just duplicate the IOs (ie, run in series or parallel depending on type, to try to make it "fail safe") and "use these programming styles and place these restrictions on what you do" that you can achieve SIL2. What a load of crap. They just get away with it because no-one in the US seems to understand the first thing about Functional Safety and carries on as if all they have to do is buy only SIL2 rated equipment and hey presto, it's a SIL2 system. Idiots. /rant
    • MBS206
      Magnetic Drain Plug Snapped in Half

      By MBS206 · Posted

      If you're really considering leaving it, a great question to ask is, is the magnet going to stick to the sump? The answer to the above is the same answer towards if I'd have any level of comfort leaving it... Personally, based on the cost of a motor if the magnet were to cause damage, I'd be fishing it out either way. Use the methods in here. It fit in through the plug hole, it'll come out.   PS, get a small actuatable claw for a bore scope. OR if you know a vet, they have really cool controllable scopes with hooks on the end. Supposedly they're like playing a video game. Ask if they can acquire you one of their scopes... Engine oil after all is just a different type of lube right? Will only make it easier on the next dog or cat...
    • MBS206
      R32 GTST - 600KW+ RB28/CD009 Build

      By MBS206 · Posted

      All other (Boolean) logic functions though, are just built on those blocks above. Which does give you a lot of functionality in logic. It is basing that on using thresholds with analogue signals like GTS alluded to.   Not having things like timers will make it less useful for some of the ramp up logic you'd want, and again, on Haltecs capacity specifically, I'm not across anymore what you can / can't do with different tables.   I'm assuming, with your logic you want to implement, not only do you want your timing safeties, you're wanting to be able to derive the duty cycle for your solenoid, to maintain I'm assuming 175PSi? Or are you using a standalone WMI controller to maintain the DC correct, and you just want the Haltech working out which fuelling maps you should be on?
    • MBS206
      Low oil pressure after WOT

      By MBS206 · Posted

      It doesn't seem to follow revs. Oddly it seems to follow TPS a little bit from what I can see, but with some delay a bit. IE end of the graph, when he lets off throttle fully, pressure drops a lot, then slowly builds back up, but rpm is on a nice cruisey drop off. I do agree though, it seems very electrically.
×
×
  • Create New...