Jump to content
SAU Community

R34gt-t Intermittently Not Boosting

FULOCK

By FULOCK,
in Engines & Forced Induction

 Share

Recommended Posts

FULOCK Collaborator

FULOCK

Posted
Posted (edited)

Hi all,

My R34 seems to have a mind of it own with how much boost it runs.

the car is stock besides cat back exhaust and pod filter.

when its going good, the boost gauge will go up about half way between the last and second last line on the stock gauge. The next time i put my foot down, it will only boost up to the first line after 0 on the gauge....???? and you can really feel the lack of power!!

i know these cars have that 2 stage boost thingy...... could the second stage not be kickin in and not getting the full 7psi or whatever stock is...????

and this is completely random.... after 30mins of goin like crap..... it will start boosting again....

anyone else had this..???

any help will be appreciated. :yes:

Edited by FULOCK
Link to comment
https://www.sau.com.au/forums/topic/148978-r34gt-t-intermittently-not-boosting/
Share on other sites
Yo-Yo Grand Master

Yo-Yo

Posted
Posted

How long have you had the car?

Have you had it for awhile & only just noticed the problem now, or has it been like that since you owned it?

One of my mate's s14 was running crap similar to what you described. We cleaned his afm & the problem has gone away since then. Possible solution?

Sorry can't be of any more help, try taking it to a competent mechanic if the problem gets any worse.

FULOCK Collaborator

FULOCK

Posted
  • Author
Posted (edited)

"Never had that problem.

Two stage boost thingy? blink.gif"

I'v been told that they have this by a few people....

have had the car only bout 4-5 month..... when ever it didnt go quite the best i just thought it was just having a moment or something.... but lately i noticed im actually not getting as much boost when its not goin good??

Question: by the factory gauge and stock boost... where should the needle go to?? first line after the 0, or a bit more??

I'll try cleaning the afm - see how that goes...

I'v noticed, once i start it and drive, the first few times i punch it when its warmed up - it hammers....

then, if i put my foot down again only a few mins later.... it hits less boost and dont go as good....???? :(

it's really SHoIIITING ME!!!!

Edited by FULOCK

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

    • Duncan
      Duncan's V37.......race car?

      By Duncan · Posted

      So, before putting them in I need to understand the stock ride height. This is how I measured it: First, check the diameter of the wheel's centre cap, it was 52mm. Then put a piece of masking tape approximately across the centre and measure 27mm (half) from at least 3 sides to get a reasonable idea of the centre of the wheel cap. Mark that with a horizontal line as one measuring point. Then, directly above the wheel on the guard, put another piece of masking tape in approximately the centre. Use a string line to find out the point on the guard above the centre of the wheel cap and mark that. Then it is simple, just a tape measure to check the distance from centre of the wheel to the centre of the guard. Final results where  LF: 381mm RF: 379mm LR: 401mm RR: 400mm Pretty even considering they are 120,000klm old factory springs, lets call that 380 front and 400 rear.
    • Duncan
      Duncan's V37.......race car?

      By Duncan · Posted

      So....knowing that I have a problem with power steering temps on track and another Wakefield day booked in next Friday, I've done the obvious thing They are very reasonably priced at $1650, considering they are a big monotube shock, double height adjustable (don't have to change pre-load to change ride height), one way adjustable damping and standard sized and customisable springs if you want something other than what comes with them. They come with 9kg/mm front and 4.5kg/mm front and I went with that as a starting point because I'll add adjustable sway bars too https://justjap.com/products/bc-racing-coilover-kit-ds-ds-infiniti-q50-v37-14-current#description Unfortunately they didn't come with rear strut tops so I've re-used the factory ones which was a bit of a pain. Also, the adjuster for the rear shock will be an absolute nightmare to get at, and while there are extensions in the kit I can't see any way you can actually attach or use them
    • Duncan
      One Headlight isn't working - Driver Side Fuse Keeps blowing

      By Duncan · Posted

      I also had 2 bulbs blow at once, years ago in the stagea. made for a fun drive home. The issue was the voltage regulator had failed in the alternator and it was giving 15+ volts. Really, I was lucky all that was fried were the headlight bulbs. So, I'd suggest you check the voltage across your battery terminals with the car running and warmed up. Yes, you will need a multimeter to do so, sorry.
    • Duncan
      R32 GTS (RB20DE) Injectors Replacement

      By Duncan · Posted

      Good work to think to check that, and thanks for coming back to post up the outcome.
    • Duncan
      98 R34GTT 4k engine stumble

      By Duncan · Posted

      Given it happened suddenly, and when you come on boost, I'd check all your inlet - hose clamps in place and no split rubber or silicone hoses. Even the hard to get to ones near the intercooler. It's possible air that went past the air flow meter is being dumped out a big hole.
×
×
  • Create New...