Jump to content
SAU Community

Recommended Posts

Hi guys, i think my R33 GTS-T has entered the twilight zone..

I was driving home from work last night and after a bit i noticed my boost gauge ( stock gauge ) was sitting on zero pressure ( middle of gauge ), and i was like WTF so i pulled over and checked the pressure sensor and the tube coming from the intake plenum was spilt where it connects to the sensor, i was like ok - that sux so i snipped the cracked bit of tube and reconnected it .

so i started the car and was like cool the boost gauge is working..... hey... thats not quite right, instead of reading -7 when at idle it was in the middle between 0 and -7.

i was like ok that could be cause i cut the tube and its a little bit more taught now or something like that, so its not gettin an acurate reading ? but i dont know im getting some more tubing today so i can fix it up properly.

and thats cool, but im a bit freaked out this moring, i was driving out from my house and was like shizen, usally when the engines cold my oil pressure hangs round that bar between 4 - 8 kg/cm then when the engine is warm it drops to a bout 4 and sits there happily while im driving.

but this morning i take off and was watching the pressure gauge and it was reading 4 kg right at the start and haging a bit below that when i was off the gas.

im a bit worried, i dont have a clue whats happening at the moment - ive only had my beloved GTS-T for a few weeks and i dont know too much about the rb25, anyone got any ideas on whats happening ?

it doesnt feel like its down on power, another observation ( not sure if its normal or not ) i was checkin the engine bay when i got to work to see if there was anything that look hella wrong like oil spewing everywhere or a small forest fire.

it all looked ok, i could hear a hissing noise like escaping gas, not sure if it was just some normal venting at idle or whatever ? - i need to get a service manual.

Anyhelp would be fantastic guys, thanks heaps - ill do some more testing at lunchtime today

Well i can provide you with what my cars readings on cold, warmed up idle and full boost oil pressure readings

cold = 7

warmed up idle = 3

driving warmed up = 4 to 5

boost = 6 to 7

I wouldnt be too worried about your oil pressure readings just check ur levels maybe? when was ur last service.. my oil pressure use to stay on 4 all the time...when i did my oil change it sort of follows my rev meter when i idle till i hit boost.

Do you have access to an aftermarket boost gauge, to get a second reading or a oil pressure meter for a 2nd reading? i have heard of the 33 cluster playing up and being in accurate?

However u did check ur engine bay and their no oil spitting out anywhere then it should be ok.

Id go to a mechanic asap and try not to drive it in boost if ur that worried.

Thanks for that, yeah those oil pressure readings sound good, like my car was exactly the same yesterday morning.

i was just a bit worried when this morning after always seeing the cold oil pressure up around 7 - i kicked her over and drove off and it has dropped down to 4 kg cold.. ill see if i can borrow an aftermarket oil pressure gauge.

I used Mobil 1 5w40 Full Synthic for my last oil change 2 weeks ago .

i found this post - i should check it as well , but what does a rocker hose look like ?

----------------------------------------------------------------------------------------------------

16-09-2003, 07:36 PM Warn 25t · View 25t's Warnings · #2

25t

Registered User

Location: new zealand

Join Date: May 2003

my 30det does this also,crimped rocker hose once and lost oil pressure at idle,scary stuff

the pcv valve (just back from vvt solinoid on inlet side of motor) is plumbed into the inlet manifold ,at idle ur motor is like a NA and is sucking air into the engine ,the plenum is under vacuum until boost is applied

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

    • Impossible to remove the housing while turbo is installed on the manifold on the engine. So I have to do it anyways. I plugged it so there will not be any debris in there. Will vacuum aswell 
    • would a r34 gtr hood line up with gt/gtt stock fenders? after latch, front bumper and hinges are swapped for gtr ones? or would the fenders be too low or high in relation to the hood surface? ( I believe seeing somewhere that gtr front fenders use some type of riser for the sides, but do not know how that relates to stock gt/gtt fenders.)    
    • You just need to remove the compressor housing, not the entire turbo. I would not be drilling and tapping anything with the housing still on anyways. 
    • So, I put my boat on a boat. First of all, I'm going to come out and say it. Why is Tasmania not considered a holy goal, an apex that all road-legal modified cars go to, to experience? This place is an absolute wonderland of titanic proportions. If people are already getting club runs for once in a lifetime 30 person cruises to Tassy then I've never seemed to see it. It is like someone replaced the entire place with an idyllic wonderland for cars, and all of the people living there with paid actors who are kind, humble, and friendly. Dear god. After doing a lap of almost all of the place I've found that it's a great way to find out all of the little things that the car isn't doing quite right and a great way to figure it all out. All in all, I drove for 4 hours a day for a week and nothing broke. I didn't even need to open the engine bay. This is by all means a great success, but it has left me with a list of things to potentially address. I also now have a 3D printed wheel fitment tool which annoyingly hasn't got any threads in it to actually assemble it. I might be able to tape it together to check the sizing I actually want to use, but it'll likely involving pulling the shocks out to properly measure travel at least at the front, and probably raise the car while I'm at it, at least in the rear. I scraped on quite a few things and I'm not sure how else to go about it. I was taking anything with a bump at what felt like 89 degree angles. And address those 10 other tasks. And wash the car. God damn it is dirty. And somehow, the weather was perfect the entire time - And because I was on the top of Mt Wellington it turns out it was very much about to freeze up there. I did something I typically never do and took some photos up there in what must have been -10 and the foggy felt like suspended ice, rather than mere fog. If you own a car in Australia, you owe it to yourself to do it.
    • Damn that was hilarious, and a bit embarrassing for skylines in general 😂 vintage car life ey. That R33 really stomped. Pretty entertaining stuff
×
×
  • Create New...