Jump to content
SAU Community

Recommended Posts

I was just wondering how the stock gtr bov's are plumbed. are they located on the side of the intercooler near the throttle body or the other side near the turbos. Also do they resirculate one to each turbo or how is it set up? I am wondering cause I am plumbing BOVs for my swap in an s13 and it did not come with any ic or piping. Thanks for your help guys any and all info will be usefull.

Link to comment
https://www.sau.com.au/forums/topic/125796-stock-gtr-bov-plumbing/
Share on other sites

GTR has 2 bovs.

They are mounted on a single larger pipe (bit smaller than the intercooler piping) and are located in the drivers side kinda in the front air dam..

So if you are looking at a GTR front on, you will see the big space in the middle for the intercooler and the smaller space on your left (drivers side when looking front on) is where you will see the bovs.

The plumbing for it is like a Y pipe. 2 hoses join to become one and the one pipe goes all the way over to the intake pipe which is from the air box to the turbo’s.

Why it has 2 bovs?

Not sure.

I doubt it has anything to do with 2 turbo’s.

My guess is it has something to do with the fact that the rb26 has individual throttles.

It seems people who change the bovs to atmo ones on rb26’s have all sorts of problem with idle and turbo surge etc..

Thanks. are they plumbed back before or after the mafs (afms)?

"after" - by 'after', I mean 'closer to the engine'. Air that's re-circulated is not supposed to be measured twice.

Just plumb your system back somewhere between your AFMs and the turbo inlet.

If you take a look at a diagram or pull a GT-R's inlet pipework to bits you'll see where the re-circulation pipe rejoins

the system. When you get all the bits onto the bench(es) you will not _believe_ that they all go back in that little tiny space :))

This is possibly why the pipework was not included :yes:

The valves are in parallel; so I'd guess that there are two simply to allow for more airflow when they are open while

keeping the response characteristics of a single smaller valve. They _may_ be sprung differently (I've never

tested) but they look identical.

Regards,

Saliya

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

    • 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?
    • 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 
    • 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
    • You have a knack for photography my friend. It makes the 86 look like a complete bucket. The 34 went with you to Europe and back. It's special. (we all feel the same about our 'shitboxes' that every bystander seems to absolutely love)
×
×
  • Create New...