Jump to content
SAU Community

Recommended Posts

hey guys i got a r33 i have a problem wen the revs get to 4 grand the boost jumps up to 13-14 psi and cuts out and plays up until redline, up until 4 grand it runs 6-7 psi no problems, i did have a bleed type boost controller on there i thought that may be the problem but its not, i have recently put a front mount, pod,splitfire coil packs, new fuel filter and new plugs nothing has fixed. i tried the search option but nothing has cum with my similar problems.

Link to comment
https://www.sau.com.au/forums/topic/222880-boost-problem/
Share on other sites

mate it wont run 10psi it will run 6-7psi upto 4 grand then jump up to 14 psi after that, itook my boost controler out i thought it may have been that and now iam running standard boost controler, but it just wont hold boost after 4 grand

Link to comment
https://www.sau.com.au/forums/topic/222880-boost-problem/#findComment-3928752
Share on other sites

what boost does it run if you hook a pipe straight from the intercooler pipe to the actuator (don't use the pipe with the restrictor in it) if it holds boost ok then your stock boost solenoid is hooked up wrong, if it doesn't you actuator is probably stuffed.

Link to comment
https://www.sau.com.au/forums/topic/222880-boost-problem/#findComment-3928893
Share on other sites

  • 3 months later...

well changed the actuator no luck, put a 3 inch dump pipe on aswell earlier in the week made heaps of difference until the boost problem any ideas please its really starting to p**s me off, or would it b best to buy a different turbo, if i go that way i would to geta highflowed item.

Edited by bwebbie1
Link to comment
https://www.sau.com.au/forums/topic/222880-boost-problem/#findComment-4145151
Share on other sites

well changed the actuator no luck, put a 3 inch dump pipe on aswell earlier in the week made heaps of difference until the boost problem any ideas please its really starting to p**s me off, or would it b best to buy a different turbo, if i go that way i would to geta highflowed item.

hi,

just curious ... did you gut your cat? are you running a standard cat or hi flo? as I have the same problem which started after I gutted mine and installed a JJR split dump/front pipe.

regards Rob

Link to comment
https://www.sau.com.au/forums/topic/222880-boost-problem/#findComment-4145198
Share on other sites

I am going to put a cat back on the system and see if that sorts it out... I think the exhaust runs too freely now and the gasses from the wastegate dont get to merge with the main pipe effectively which causes the over boosting... x fingers .. have already dropped the split dump pipe and ground out the wastegate side so waste gate opens freely so isnt that... will let you know how i get along.

Link to comment
https://www.sau.com.au/forums/topic/222880-boost-problem/#findComment-4145411
Share on other sites

Read thru this thread, might help.

http://www.skylinesaustralia.com/forums/Bo...26#entry4144426

If you’re running a jjr/ebay split dump/front pipe then you will have boost spike issues.

At 13-14+ psi the stock ecu will R&R anyway so it will feel like it dies after 4500rpm, you may even hit boost/fuel cut at that stage. Bleed type boost controllers have a very common problem of boost spikes, if you want steady boost I’d look for a gready EBC, apexi ect for steady boost levels.

Link to comment
https://www.sau.com.au/forums/topic/222880-boost-problem/#findComment-4145807
Share on other sites

hey guys this is problem a dumb question but wen we installed the front mount the problems started so we were thinkn that we might have the intercooler around the wrong way??? is this possible that the flow is not wroght or doesnt it matter??? cheers thanks

Link to comment
https://www.sau.com.au/forums/topic/222880-boost-problem/#findComment-4161200
Share on other sites

It doesnt matter what way the intercooler pipe is.. try a good boost controller, an electric one... not apexi either a blitz, hks or greddy

could be the dump pipe but it sounds like youve had 2 dumps pipes on and the boost played up with booth?? was the first one stock?

can you chek to see if the actuator can open fully with the dump pipe on?

Link to comment
https://www.sau.com.au/forums/topic/222880-boost-problem/#findComment-4161246
Share on other sites

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

    • A locally delivered Infiniti have remote start installed but don't come with the remote start key. You need a new remote start key and they just need it programed. And this is different to making/programing a new key that just starts the car.  
    • Cheers, and cheers for sharing so much of the build and also sharing the glimpse of what turns out to bring a lot of us poor decision makers together haha.  I do recommend learning more about how to manage it, if not considering getting a  formal diagnosis.  The discussion with the psychiatrist I got my diagnosis through was quite eye opening, things I'd not even considered to be ADHD related and hadn't mentioned were things she asked about out of the blue and were common themes with people with my flavour of ADHD.   It's not a label for people who are hyperactive and ill-attentive, there's more to it than that and some of it can be much more challenging or damaging - though there are of course two sides to the thing, and a lot of the stuff we have to go through and work on to live with it make us effectively "better" at other things as well. Aside from the fact that there is some argument I could have a bit of ASD seasoning in there (came up during the diagnosis, and neurodiverse things seem to not stay as a cookie cut) I suspect you need to learn more about ADHD if you are puzzled about how hyperfocus could possibly apply.  I *do* personally use "superpower" with quotes deliberately, but it's 100% an ADHD thing due to the exact reason that lack of focus is also an ADHD thing... Loosely speaking the inattentive side of ADHD isn't the inability to focus, it's the inability to control where the focus goes.  Not being able to sleep because brain is more interested in thinking about a stupid thing I said to a girl I liked 30 years ago, not being able to focus on work because my brain is more keen on putting together the torque management strategy we're going to try out with a drag car next weekend, not being able to focus on a conversation with someone I WANT to listen to and respect because there is a flickering light in my peripheral vision.    If I could just stop work and build the torque management setup right there and then I'd not hear anything else until it was done.  
    • Maybe you should do some more reading.  Google positive effects of ADHD and you'll get your answers.  One of my personal downsides of ADHD has been talking before I think.   Maybe you have it too?
    • Excuse me for butting in....but which part of ADHD can be considered a superpower? I would have though it far more likely that some ASD comorbidity is more likely to be contributing to an ability to hyperfocus on something. ADHD being aimed somewhat in the other direction. My shed looks like your shed. My whiteboard list of unfinished projects has entries going back 15 years. I know what you're talking about - I just struggle to connect ADHD to the results being discussed.
    • Thanks for reaching out!  It's a blessing and a curse at the same time.  I'm undiagnosed but it doesn't take a rocket scientist to see it in me... I have more half started projects laying around my house, shed, garden, etc taking up space and money, destroying aesthetics than if I added up all of my mates projects together. But, ADHD gives me the ability to hyper focus on things that no mere mortal could even  comprehend.  A recent pool build is an example of that....  I dont know anyone else that would be dumb enough and focused enough to take on then complete something of that magnitude. I call ADHD a superpower but it can equally be completely destructive if not controlled and focusedon the right places. Addiction is a major concern to ADHD people and thankfully my addictions have been no worse than projects, XBOX, chocolate and being an arsehole! It's often hereditary and my 13 year old son is currently learning how to drive it at the moment. Keep lurking! If i can finally finish this bloody thing at some point it will be a win for all of us ADHD'ers! 🤪
×
×
  • Create New...