Jump to content
SAU Community

Recommended Posts

just go for the complete bolt on one..saves you some bucks..depends if you want bigger injectors.. there are only a number of sizes injectors that straight fit RB25.. you can go 740cc..im not too sure but i think that's the biggest... if you go top feed..you'd be needing new fuel rails / resistor packs and all.

anyways...practically,..just go bolt on.

Injectors is were alot of people make mistake's.

Top feed & bling bling rail injector set up's are just going to be more trouble then their worth. As if their not high impedence their not going to work.

Nismo 740's or 550cc's are direct replacements into the standard fuel rail, no need to modify anything at all, the only thing i would recomend changing is the rubber o-rings that the injector sits on. - Cheap as under $5

And if you are going to replace your injectors to a larger size you cannot use them with the stock ecu, you will have to go aftermarket as your car will run like, sh!t and very very rich.

Low impedence injectors are possible to use on a RB25 but you will need resistor pack to change the impedence to 12 - 16ohm's. - A waste of time if you ask me when the direct replacements will do the same job, hassell free!

2 eg.

RB25 with Nismo direct replacement injectors, took the afternoon to fit them and get working, car was drivable no drama's except for the one o-ring that was not sealing so had to be replaced.

SR20 with denso 780cc injectors with custom fuel rail, took 4 days to get it working and running, as we had dramas with collar's and the injectors not sealing in the rail and a number of other things, the car runs fine now, the price turned out to be more expensive then the RB25 direct replacements.

;)

Cam

Injectors is were alot of people make mistake's.

Top feed & bling bling rail injector set up's are just going to be more trouble then their worth. As if their not high impedence their not going to work.

Nismo 740's or 550cc's are direct replacements into the standard fuel rail, no need to modify anything at all, the only thing i would recomend changing is the rubber o-rings that the injector sits on. - Cheap as under $5

And if you are going to replace your injectors to a larger size you cannot use them with the stock ecu, you will have to go aftermarket as your car will run like, sh!t and very very rich.

Low impedence injectors are possible to use on a RB25 but you will need resistor pack to change the impedence to 12 - 16ohm's. - A waste of time if you ask me when the direct replacements will do the same job, hassell free!

2 eg.

RB25 with Nismo direct replacement injectors, took the afternoon to fit them and get working, car was drivable no drama's except for the one o-ring that was not sealing so had to be replaced.

SR20 with denso 780cc injectors with custom fuel rail, took 4 days to get it working and running, as we had dramas with collar's and the injectors not sealing in the rail and a number of other things, the car runs fine now, the price turned out to be more expensive then the RB25 direct replacements.

;)

Cam

thanks mate i have the ecu so no worries there , i think im just going to buy the bolt in injectors , seems like the smartest choice and the easiest

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

    • You know how your car rolled through a fence in your last jacking escapade? Scissor jacks increase the likely hood of that sort of thing happening immensely!
    • http://calfinn.com.au/product/1500kg-standard-trolley-jack-cj-2t-c/1500kg-standard-trolley-jack-cj-2t-c   I have this and fits under a S3 33 GTR with no issues. Purchased in 2009 and not one issue. It was $950 back then. Not cheap but something so important isn’t worth cheaping out on.
    • Just trying to get my head around this. At 5psi of boost, you turn on your wmi pump, and then you're using a 3000cc injector, to allow flow upto the actual engine, where you have your 6x200cc injectors and a 500cc injector. If the above is correct, what advantage are you obtaining by having the 3000cc injector blocking flow, is this just incase a line breaks between that injector and the motor you can stop flow immediately? Or are the 6x200cc and 500cc less injectors and just spray nozzle?
    • Welcome! New member myself, but I had an R33 back in 2002. Best advice I could give, based on my experience: if you're running the factory turbo, be very conservative with boost. I made the mistake of just fiddling around with the boost controller and cranking the boost for fun, and the end result was my intake pipes popping off frequently from the constant deluge of oil that was being blown into the recirc by the stressed-out turbo, which itself was siphoning oil from the engine and farting it out both sides of its centre bearing (or something to that effect). If I could do it all again, I would have gotten a new turbo and had a tune dialled in professionally and then just left it alone! Funny you mention the metal shavings in the gearbox, as I had the same thing - the probe plug (magnetic drain plug, essentially) would come out caked with shavings. At least it was doing its job. Not sure if that's just sacrificial wear and part of the deal, or if my gearbox was shagged, but I wasn't abusing it. Enjoy the R33 - they're a dying breed, and if they weren't $35k+ on CarSales in Queensland, I might have picked up one of those again, instead of the 370GT I own now (though I'm loving the 370GT, that big 3.7L V6 just hits different).
    • Howdy folks. I owned an R33 back in 2002, which was thoroughly beyond my capacity (financially speaking) to maintain/insure, so we parted ways in 2004. Fast forward 21 years (to literally yesterday, in fact) and I'm now the proud owner of a 2007 V36 370GT. I'm happily surprised by how much power the VQ37VHR makes, compared to the RB25DET, considering the latter is turbocharged. I had planned to add a turbo at some point but I'm on the fence about whether I'll even need it (though I do love the sudden onset of extra torque). Any other 370GT owners around the traps, I'd love to hear about your experiences with this car (good and bad).
×
×
  • Create New...