Jump to content
SAU Community

Need Fuel Rail Bolt Spacing Information! Gtr/rb25 Neo

n_D

By n_D,
in Engines & Forced Induction

 Share

Recommended Posts

n_D Collaborator

n_D

Posted
Posted (edited)

Howdy

I have a Neo rb25 with an aftermarket plenum.

Im trying to find an appropriate fuel rail, tried a R33 top mount and the mount spacing is too wide!

The plenum I have has the same spacing as the standard NEO fuel rail, about 370mm between bolt holes. I was wondering if someone could measure the spacing on a rb26, I believe it should be the same but want to make sure before I go purchase another rail.

BTW have a brand new black anodized proflow fuel rail for sale $170 :P

Also how necessary are the little micron filters that came with the length adapters for ev14 injectors? Do they just press into the top of the top hat?

post-28961-0-33912500-1403000459_thumb.jpg

Edited by n_D
scotty nm35 Grand Master

scotty nm35

Posted
Posted

Those filters will also block quickly if you don't sort out a good inline filter for your fuel system.

What is the issue with the stock rail, and why the hell have you changed the plenum?

n_D Collaborator

n_D

Posted
  • Author
Posted (edited)

Motors in a S15 silvia, needed to minimize piping and car will be pushing a bit of power when its done I dont have the stock rail anymore.

Got engine bay tubbed and sprayed, looks a lot neater.

So those micron filters just push into the top of the length adapter?

Edited by n_D
scotty nm35 Grand Master

scotty nm35

Posted
Posted

As long as you have a large stainless mesh filter of 30-40 micron or less inline, you shouldn't need those filters. They block easily as they are so fine, and they don't have a lot of surface area. The only injector blockages I have seen so far have been those small filters clogging.

If you changed them regularly they would be a great backup to your main filter.

n_D Collaborator

n_D

Posted
  • Author
Posted (edited)

Yeh i tried a rail to suit a rb26. I dont have the stock rail anymore, its also not the prettiest

Heres my build http://www.skylinesaustralia.com/forums/topic/436499-rb25-neo-silvia-s15/page-1

Im not a retard haha I just like things fitting properly, plazmaman makes a neo specific rail and in the process of getting measurements of it.

If all else fails ill just get something made up to fit the gtr rail, hole for the mount is only 5-10mm off

Edited by n_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

    • RP1421
      S15 Spec R

      By RP1421 · Posted

      A few small updates since the previous post and lessons. I decided to do a little interior light upgrade on the 110. I quite like the iilumo items, even if they're a bit of a premium over other brands. You'll also note the Stedi Fogs, that will go into the S15 fog lights as I needed to match the bulbs since I got the new ones earlier. I hope they fit as the body is quite a bit longer than your normal bulb.  Annoyingly, I managed to trip the fuse, which normally wouldn't be an issue until I located the fuse. I can't say I've ever come across this. I had lucked out that someone nearby had a spare, but oddly enough Toyota dealerships seem to keep this in stock. I ordered some to keep in my stash and as luck would have it, someone else nearby tripped the same fuse so I passed on the favour.  I also did a little service on the 110 ahead of some additional work coming up. It's been annoying that Goleby's stopped carrying this particular HKS filter for the 110, so now I need to keep them on order from Japan. I also took the opportunity to install a bash plate and number plate riser. The plate riser is such a cheap but nice fix to help really tidy up the car. I'm tempted to now also replace my headlights, on this car. Both items were from Project Aero.    I also needed to replace the rear tyres on the 110, and after trying to get it aligned learnt that I need to replace some bushes in the front end, so that's next.  Closing out this update with a nicer picture as always! 
    • Murray_Calavera
      WTAC 2025

      By Murray_Calavera · Posted

      Yeah mate, never miss it.
    • Ozdavroz
      WTAC 2025

      By Ozdavroz · Posted

      Any going to watch World Time Attack at SMSP this year?
    • Jarsky
      R33 Fuel Pump & Brakes after alarm swap

      By Jarsky · Posted

      Appreciate the correction on the "ground", that will make a huge difference to looking at this. That makes complete sense about AF70/AF71 which is what I had come down to being the issue, one of these. I'll have another look in the ignition wiring when I get a chance next week. I'll also make up a jumper wire for running that AF73 test.  ECU is fine, relay itself is fine, pump harness is fine and the pump itself is fine. I am going to upgrade the Walbro 255 anyway with a DW300 I have since I need to replace the fuel sender and I'm going to upgrade the FPR with my chasebays kit ready for new plenum/injectors/dbw, but I'll get this working first. That's why this is so frustrating. 
    • zillah
      Recommendation for engine oil funnel spill free

      By zillah · Posted

      hahaha good on
×
×
  • Create New...