Jump to content
SAU Community

Help Explaining Whats Needed For Fuel Rail And Injector Install

ausdrift

By ausdrift,
in Engines & Forced Induction

 Share

Recommended Posts

ausdrift Experienced

ausdrift

Posted
Posted

Im looking at getting upgraded injectors for my r33 gts-t and it looks like ill need top feed ones and im going with id brand, either 720? Or 850s. Thing is i dont know much about fuel rails and injector installs. Ill get a shop to fit, but can someone explain a bit about whats needed, sizes and how it fits together? I hear id need short version injectors for rb25det etc...

And with a fuel rail, id buy the rail, but does that just bolt on generally, to the oem hoses and parts etc? Do i need to buy additional parts, etc?

Thanks

kingtube69 Experienced

kingtube69

Posted
Posted

Go to scottys customs website and have a look. He has a conversion kit all you need is the short injectors!

All there all done for you. You could even email him or find him on Facebook and message him about it.

He's been a great help to me but because I want the stock look I'm going Nismo 740CC

kingtube69 Experienced

kingtube69

Posted
Posted

I've been following your posts for ages now! I'm using your fuel pump guide next week :)

Dose Pipe Sutututu Grand Master

Dose Pipe Sutututu

Posted
Posted

hhahahaa sweet man!

Yeah, hit up Scotty - he has all the parts and I've measured out all the spacers for him already so he knows exactly what to supply based on what application

GTSBoy Grand Master

GTSBoy

Posted
Posted

And whats the deal with fuel pressure regulators? Why/when is this needed?

Usually not needed. You have two main reasons to need one.

1) You are living in the early 1990s and you cannot buy bigger injectors or better engine management. The only way to get more fuel into your engine is to bump up the pressure.

2) You are fitting an aftermarket fuel rail and cannot put your OEM regulator onto it. Ergo you have to buy a reg that will fit.

For most people the OEM reg is able to flow enough return fuel for quite large fuel pump upgrades without losing control of the fuel pressure. Once you get past that point THEN you have a really good reason to buy an aftermarket reg.

femno Grand Master

femno

Posted
Posted

How much power do you need to support? Drop in a set of S15 injectors? Would be plenty for a hi-flow turbo.

If not just go Nismo 740cc or any other drop ins you can get your hands on.

Then no need for cop-attracting fuel rail, fancy hosing or aftermarket reg to over complicate things.

kingtube69 Experienced

kingtube69

Posted
Posted

How much power do you need to support? Drop in a set of S15 injectors? Would be plenty for a hi-flow turbo.

If not just go Nismo 740cc or any other drop ins you can get your hands on.

Then no need for cop-attracting fuel rail, fancy hosing or aftermarket reg to over complicate things.

This is the reason I'm going 740s :)

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

    • Black_CSR
      Wheel Sizes & Offsets For Skylines

      By Black_CSR · Posted

      ok so if i wanted to go 18's i would go for 8's  in front 30+ or 32+ off set at front and the back 9 would be ok? what offset should i aim for.. then can i do some  hunting for wheel rim choices..    If i get this - will this fit all around: Size: 18 x 8.5 +37 - n what tyres size tyre should i get for front n back?  
    • GoHashiriya
      From Japan and back to Europe, my sh*tbox R34 GTT

      By GoHashiriya · Posted

      Absolute f*cking nightmare. I had to take breaks constantly, and I was always pissed off when I got home. The line split in Italy on day 2 (we drove from the Netherlands), lol. Driving any narrow European town was... well, sh*t.   Appreciate it man. Here, I'll just drop a favourite from the load I took on Saturday.   I'll update here when things happen with the car, the thing is, with stock power and almost everything chassis-wise taken care of, there really are no problems. 268,000kms now and counting.  
    • Kinkstaah
      WTB R34 GTR Guard Liners

      By Kinkstaah · Posted

      Ah! I actually managed to snag a lightly used set.... that aren't so suitable for me right now. They don't work on a GTT without some cutting or creative heat moulding. I thought about reselling them myself cause I didn't want to murder them, but it looks like I'm probably going to attempt to murder them/melt them because I may as well. @GTSBoy @PranK can somebody close this thread?
    • itsmeyo
      WTB R34 GTR Guard Liners

      By itsmeyo · Posted

      Hey mate,  I have a set, one is slightly damaged but wont be noticable once installed.  Shoot me a message if your still after them 
    • The Bogan
      NC MX5

      By The Bogan · Posted

      I couldn't wait But, the black constant tension hose clamps were too thick and there wasn't enough clearance at the T/B and I couldn't get it to seat properly, so I had use a silver one there I also added some 3" silicone over the alloy bit that goes through to hole on the radiator support as it looked like it was sitting on the edge of the hole in the radiator support, I never noticed a rattle or anything, but there was a witness mark It is basicly done, and I can live with the silver hose clamp at the T/B, I will get a black clamp for the head vent though where it is attached to the bulkhead fitting  It never stops...LOL, only issue now with the shock tower brace is it slightly touches the under bonnet liner now, if I leave it it will either wear some paint off the brace where it touches, or damage the liner, so I removed the liner to see what I have to work with, with the liner removed I have about 20mm of clearance, but sadly the middle part of the underside of the bonnet is only dusted with paint and looks crap, so I cannot have that, but.... as I have a roll of Carbuilders premium under bonnet insulation in the garage laying around that is only 5.5mm thick (we were going to use it on the boys Patrol, but he crashed the front of it a few months and it was written off, hence why he now drives my old Honda Accord Euro), I'll use the OEM liner as a template and get the Carbuilders stuff fitted up to cover that dusted paint up
×
×
  • Create New...