Jump to content
SAU Community

Quick Avcr Question

AngryRB

By AngryRB,
in Engines & Forced Induction

 Share

Recommended Posts

AngryRB Grand Master

AngryRB

Posted
Posted

Does this look like its setup right?

the left hose is connected just after the compressor,

the Tee feeds 2lines to the tial 44mm which has both hoses on the bottom row of ports, should there be one on the top and one on bottom instead?

the hole with nothing in it is labelled "NO", and when doing a pressure test for vacumn leaks it was leaking massively, is that normal ?post-70965-0-11252900-1372838132_thumb.jpg

Link to comment
https://www.sau.com.au/forums/topic/428010-quick-avcr-question/
Share on other sites
AngryRB Grand Master

AngryRB

Posted
  • Author
Posted

ok thanks for that link, ive studied that and its clear that its hooked up wrong, but im still trying to understand why when I hooked up compressed air to the system that the "NO" was leaking out air, this was with 0.3Bar with combined 14psi springs in the gate..

could the solenoid be stuck open or is definitely due to being plumbed up wrong?

Kane_R32 Experienced

Kane_R32

Posted
Posted

I could be wrong, but have you tried testing it with reds "on" this would power up the AVCR and solenoid. My understanding is that the solenoid pulses lots of times to control boost. If you put some air into it while off, it may have stopped in an open position. I could be entirely wrong though! haha

AngryRB Grand Master

AngryRB

Posted
  • Author
Posted (edited)

thanks for the input guys, all good now, tuner setup it up for me today same as above link, the solenoid is actually meant to vent air off if running spring pressure and when adding more boost it uses that air to push on the spring to adjust boost higher than spring pressure. if that makes sense. :whistling:

Edited by AngryRB
  • 2 weeks later...
Cyifly Community Regular

Cyifly

Posted
Posted

thanks for the input guys, all good now, tuner setup it up for me today same as above link, the solenoid is actually meant to vent air off if running spring pressure and when adding more boost it uses that air to push on the spring to adjust boost higher than spring pressure. if that makes sense. :whistling:

Mate could you possibly update or pm me with how you have the avcr set up with the gate or a sketch so I can make sure mine is done properly when going back on Dyno in a few weeks?

Had to cut last Dyno short as I didn't have it hooked up right damn it.lol

I have a gtt as well

AngryRB Grand Master

AngryRB

Posted
  • Author
Posted (edited)

no probs, see in the pic on my first post

the hose on the left goes to the top row of ports on the tial

the 2 hoses on the right of the solenoid - one is plumbed just after the turbo compressor, cold side

the other plumbs into the bottom row of ports

all other ports are plugged, the solenoid works by bleeding off air until you want more boost than the spring pressure , in that situation it forces are to the top port to help the spring keep the gate closed.

which is what the diagram in the manual in the above link shows ...

hope that helps

Edited by AngryRB

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

    • sunsetR33
      Blue/grey smoke after idle

      By sunsetR33 · Posted

      Can't you put the pistons to TDC and then do the valve seals? Or will the drop down too far to pull them back up?
    • sunsetR33
      Replacing turbo water line - any recommendations or advice?

      By sunsetR33 · Posted

      One thing I can tell you is, do it properly the first time. If you encounter unexpected problems just let the car sit for a week or two if you have to get some other parts or figure stuff out.  I'd have said go and use as many OEM parts as possible but since you want to change the turbo later on a custom kit is probably the better choice. Since I have no experience with RB25 just compare parts diagrams and images before buying a line kit and it should be easy to see if it has everything you need. Amayama has very good parts diagrams and part number lists, that is what I used a bunch to figure out what I might need. And don't forget to plan ahead and possibly renew other stuff that's easy to get to while you're in there doing the turbo lines. Happy wrenching
    • sunsetR33
      Unpeeling the Orange

      By sunsetR33 · Posted

      Update 4:   Hi all, good news. Engine is running and all the gaskets and seals seem to be working as intended. No leaks so far, even the JB Weld seems to hold. I flushed out the old coolant a few times and put in fresh coolant, not Nissan stuff, I decided to try the Ravenol Protect FL22, they claim it works for a wide variety of JDM cars and the opinions on it by some people were pretty good. And it has the nice poison green color! And man am I glad I bought a coolant system tester earlier this year, vacuum filling works wonders on this engine. I can definitely recommend this to anyone still doing it the old school way. All you need is compressed air supply. Will have to do a small test drive as soon as I can, I removed the gauge cluster again as the tacho needle was still bouncing around a bit but it was much better than before already.  I also found some cracks on all 4 tires inner and outer sidewalls. Apparently these tires should 't be parked on for extended periods or be kept under 0 degrees during storage, which I did not know. Clearly the previous owner didn't look into those details either, he probably bought them just cause they are cool semi-slicks. I'm just wondering how tf I am supposed to reach 30-80 degree tire temperatures on the public road consistenly, these tires were never going to work for my use case. I'll probably order Continental SportContact7 ones as these are the best allround summer tire available right now and I don't think I'll need anything crazier for now. Do let me know if you have experience with various tires and which ones you recommend.
    • sunsetR33
      Unpeeling the Orange

      By sunsetR33 · Posted

      You have no idea how many goddamn boxes I received these past three months haha Most have been put to use by now though, luckily
    • sunsetR33
      Unpeeling the Orange

      By sunsetR33 · Posted

      Not going to pretend I didn't do a bit of junky work this time around, but mostly due to the fact that some things I am not willing to spend days fixing right now, like wiring. I try to do most things properly the first time around.
×
×
  • Create New...