Jump to content
SAU Community

Recommended Posts

the dual stage in the r33 is 7psi after 4500rpm, same rpm level when vvt timing turns off.

this is controlled by the ecu and it grounds wire # 25 on the ecu pin out when u go above 4500 rpm which opens the valve to run 7psi.

i believe (again believe) this is regardless of auto / manual

you could if you wanted to break this ground and permentatly ground the wire yourself to somewhere in the engine bay, that way the valve is always open and you run 7psi all the time, regardless of rpm. im not sure on other implactions from doing this, but it should be fine.

  • Replies 47
  • Created
  • Last Reply

Top Posters In This Topic

ok thnaks guys, oh this aint for my car by the way paulr33, i just heard today that a friend of mine said that this guys auto Line only runs 5 psi and i thought that theres something wrong wif his car as i thought they all run 7 as well. so looks like i was thinking right, anyway thanks again.

i dont think there is a massive differnece between auto and manual when you are comparing dyno output. they should be the same or similar as they will both have similar torque in 4th gear or high in the auto. its mainly 0 to 100 and 1/4 where you will see the auto be a bit behind due to lower rpm shifting and different cogs / ratios (i think)

strutto: i have no idea. i guess in limp home mode (afm broken) it wouldn't ground it, not sure what other events it would consider before not ground it. i've permenantly grounded mine and it runs 7psi non stop, works fine so far. has been for week and a half now. it looks like now (since runnning 7psi all the time) im getting better fuel economy as stupid and random as it sounds, no idea how or why, just seems like that. could be a big concidence (most likely)

  • 2 years later...

My S2 R33 auto did a 15.0 according to my mates G-meter thingy. Thats with full running gear including sub in the boot, plus I forgot to turn the aircon off :P

The only mod I have is a pod filter!

Not sure why you are being told to change pump and reg? Upgrade pump and leave the reg.

i spose it on the limit havnt had any problems yet but my tuner told me the next thing would be to peplace fuel pump and fit a preasure reg

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

    • Hey lads, reviving an old thread.  As an update, since the last time replied to this thread, ive done mostly suspension. Havent touched the motor except for maintenance. Though upon changing spark plugs, found out i had splitfires pre-installed! Updates: - Got me some stock airbox top cover and snorkel to fit onto the original intake. Should be free of defects - Bought a set of R34 GT-T brakes (not installed yet, going to rebuild + respray in champion blue + white 'Nissan' text) - Bought the last set of bilsteins from @Sydneykid and had them installed. Has been making some sounds on the rear but hopefully should be sorted out after this New Year break. - Regreased front caster rod bushings (poly bushes..) - Rear upper camber arms - Whiteline sway bars (BNF27Z 22mm + BNR11XXZ 24mm).  The rear sway bars are a bit short (ive read 50mm else where) but was still able to get them in.  Anyhows, I reckon suspension is sorted now. Maybe replace bushes (do have a set of front upper control arms from SK not installed yet) but should be okay for now. From now, I'm wanting to start working on the motor, drivetrain etc etc. Still debating on the order to go on and what to buy etc but: - ECU ( Haltech or Link ( Link states that it dont support A/T or AWD functions... Can anyone attest to this? ) - Highflow turbo ( ATR43ss2 ) - Intercooler ( Not decided yet, but cant find many good afoordable ones. Toshi says to opt for crossflow Japanese. Bit difficult this one, unless I get a returnflow Blitz from JJ? ) - Injectors ( Any recommendations ? I do have a nismo FPR ( Thanks SK ) ) - Seats - Tune by either Toshi or DVS To be fair, I did consider just keeping the stock turbo and nistuning it. Sat in a mates stock N, that had something like 200kw, and I reckon that felt more than enough. Maybe I should just go this route ahhaha. Too many choices.... Planning a trip down south, so wanting to just clean things up and make sure it gets to and from in one piece. Anything else specifically I should do before ? Cheers lads  
    • Must be for the car’s lucky charm 🤷🏽‍♂️ She runs fine, but it just seems to take about 1L less. Maybe I’ll have the oil sump dropped at some point to check if there is anything 
    • Hmmm interesting. Mine is the exact same and clearly the right one.  The mystery of the engine oil being full after 3.5-4L continues 
    • Yes I as well would like to find out where I could get some of the seat material with the red or blue small squares in it
×
×
  • Create New...