Jump to content
SAU Community

Recommended Posts

hey guys,

I was on my home from the mechanic, he just changed the oil filter and oil. on my way home, there was a bang noise from the left side of the engine and now no boost!!!!!!!!!!!

on the stk guage it wont go above 0 (its like the turbos will spool up but its not getting to the engine!)

i took it back to the mechanic and we checked the vacum lines on the plenum side (from the stk boost solenoid) and they are still attached. we checked to see if maybe the intercooler hose had popped off... we cant see anything around the intercooler??

please help me!!!!

Link to comment
https://www.sau.com.au/forums/topic/237834-bang-noise-now-no-boost-r32-gtr/
Share on other sites

  • Replies 43
  • Created
  • Last Reply

Top Posters In This Topic

Ive had this problem before

My turbos blew once and didnt boost after ? what tiurbos are you running and were you fanging it??, but mabye thats not your case ? also had vacuum hose come out and lastly my boost controller shat itself .. could be ???

Edited by MRGTR911

stk turbos bro???

i wasnt fanging it, i dropped it back into 2nd to go around a corner, i wasnt thrashing it :)

i thought it was the turbos but i didnt get smoke from the exhaust so i didnt suspect the turbos?

could i have been wrong?

ooh. that sounds like a dead turbine wheel I hate to say.

If you have a hose off then the car usually won't want to idle well or at all.

Dead turbine is my bet, but I hope I am wrong.

If so, fingers crossed you haven't ceramic dusted the motor. Sadly this happens alot. You will find a pot or two down on compression on a test or losing compression on leak down. If it's the turbine make sure you get rid of the oil too.

Sorry i shouldve mentioned the extremely bad idle....

it goes to stall but picks up revs to keep the car alive!

its not AFMs ive just had them reconditioned to try and fix my random cutting out problem.

so the IC pipping guys?? its a stk IC, where should i look???

thanks for the help guys!

Its pretty easy, follow the pipes from the turbos to the IC, then from the IC to the plenum. Somewhere in there the pipe will be split/loose/not sealing 100%

On my one the big pipe that goes under the airbox would always come off under hard load until i got better clamps, you might find its just a shitty clamp thats letting you down

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

    • Also, I logged some data from the ECU for each session (mostly oil pressures and various temps, but also speed, revs etc, can't believe I forgot accelerator position). The Ecutek data loads nicely to datazap, I got good data from sessions 2, 3 and 4: https://datazap.me/u/duncanhandleyhgeconsultingcomau/250813-wakefield-session-2?log=0&data=7 https://datazap.me/u/duncanhandleyhgeconsultingcomau/250813-wakefield-session-3?log=0&data=6 https://datazap.me/u/duncanhandleyhgeconsultingcomau/250813-wakefield-session-4?log=0&data=6 Each session is cut into 3 files but loaded together, you can change between them in the top left. As the test sessions are mostly about the car, not me, I basically start by checking the oil pressure (good, or at least consistent all day). These have an electrically controlled oil pump which targets 25psi(!) at low load and 50 at high. I'm running a much thicker oil than recommended by nissan (they said 0w20, I'm running 10w40) so its a little higher. The main thing is that it doesn't drop too far, eg in the long left hand fish hook, or under brakes so I know I'm not getting oil surge. Good start. Then Oil and Coolant temp, plus intercooler and intake temps, like this: Keeping in mind ambient was about 5o at session 2, I'd say the oil temp is good. The coolant temp as OK but a big worry for hot days (it was getting to 110 back in Feb when it was 35o) so I need to keep addressing that. The water to air intercooler is working totally backwards where we get 5o air in the intake, squish/warm it in the turbos (unknown temp) then run it through the intercoolers which are say 65o max in this case, then the result is 20o air into the engine......the day was too atypical to draw a conclusion on that I think, in the united states of freedom they do a lot of upsizing the intercooler and heat exchanger cores to get those temps down but they were OK this time. The other interesting (but not concerning) part for me was the turbo speed vs boost graph: I circled an example from the main straight. With the tune boost peaks at around 18psi but it deliberately drops to about 14psi at redline because the turbos are tiny - they choke at high revs and just create more heat than power if you run them hard all the way. But you can also see the turbo speed at the same time; it raises from about 180,000rpm to 210,000rpm which the boost falls....imagine the turbine speed if they held 18psi to redline. The wastegates are electrically controlled so there is a heap of logic about boost target, actual boost, delta etc etc but it all seems to work well
    • hahah when youtube subscribers are faster than my updates here. Yes some vid from the day is up, here:  Note that as with all track day videos it is boring watching after the bloopers at the start.  The off was a genuine surprise to me, I've literally done a thousand laps around the place and I've never had instability there; basically it rolled into oversteer, slipped, gripped and spat me out. On the way off I mowed down one of the instructor's cones and it sat there all day looking at me with accusing cone eyes as I drove past. 1:13:20 was my fastest lap, and it was in the second session, 3rd lap.  It (or me!) got slower throughout the day as it got hotter.      
    • It sounds like you want what the Toyota Landcruisers have for their roof racks. Wanna know what you end up with? Rust holes in the roof, and water everywhere...
    • Discovered today that if I select reverse first and take my foot off the brake, then select drive, the drive indicator light works and so does the tiptronic gear indicator. 
    • Ok so after much research and talking with knowledgeable people I've got my turbo conversion done and it's all running great other than 1 small issue.  Car has remained auto with the na auto and tcm, I've used a stagea ecu with. NIstune board and everything is great other than my gear selection on the dash. It illuminates park, reverse, neutral, 3rd and 2nd. But nothing drive or what gear your in when you pop it into tiptronic.  I'm sure there is maybe 1 wire in the ecu plug I need to move to rectify this. Does anyone here have any ideas?   Cheers guys
×
×
  • Create New...