Jump to content
SAU Community

Turbo Gauge Going Crazy

KODE

By KODE,
in General Automotive Discussion

 Share

Recommended Posts

Krishy Grand Master

Krishy

Posted
Posted

thats exactly how a boost gauge works mate....below 0 is vacuum up to 0...then anything above that is displaying the amount of boost being used.....i have aftermarket gauge in psi and thats a lot more accurate from what i have found to stock gauges

HackerX Community Regular

HackerX

Posted
Posted
is it normal that b4 i start the car pic1 turbo gauge showing 0- zero

and after car is running its going down pic2 but only to -0.6

month ago it was before i start a car in -1 and after -1 now it changed

is it a problem ??

thanks guys

Like most have said, it's normal for it to sit at 0 (atmospheric) when the engine is off, and for it to go negative when idle (the motion of the engine literally sucks air into it).

However, if the amount it goes down has changed and you haven't done changed anything (pod filter, boost controller etc), then you might have a leak. Does it still make the same maximum boost? (stock on the 34 is just over 3/4, or half way between 0 - 1) Does it hold that boost if you hold your foot down?

KODE Collaborator

KODE

Posted
  • Author
Posted
Like most have said, it's normal for it to sit at 0 (atmospheric) when the engine is off, and for it to go negative when idle (the motion of the engine literally sucks air into it).

However, if the amount it goes down has changed and you haven't done changed anything (pod filter, boost controller etc), then you might have a leak. Does it still make the same maximum boost? (stock on the 34 is just over 3/4, or half way between 0 - 1) Does it hold that boost if you hold your foot down?

i will check it and let u know but i think i yes its hold that boost.

i recently bought my skyline and i think its time to go to mechanic for inspection

will check my boost and let u know

thanks

KODE Collaborator

KODE

Posted
  • Author
Posted

just check it

working okay

its in 3/4 when hold foot down

thanks gosh no leaking

P.S. noticed another strange thing, sometimes boost gauge is stopping working (like the engine is turn off) anybody no how can i fix it ?? is it wire or gauge or what

thanks

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

    • GTSBoy
      R34 gtt rb25det neo timing belt kit

      By GTSBoy · Posted

      Just don't use ChatGPT or any other artificial stupidity for the equivalent of googling. Their demonstrated inability to discriminate reality from hallucination should be enough to make them totally untrusted. LLMs don't know anything and cannot think to even the smallest extent. They are just predictors of the next word, and that should never be confused with capability.
    • GTSBoy
      Another little story of weird shit happening

      By GTSBoy · Posted

      I think, given the usage model described in the OP, I'd never ever experience the wonders of the 400kW upgrade. What I really need is boost from 2000rpm and probably no more than 260-270rwkW. But I suspect that the highflow is not actually the turbo for that purpose, so I may in fact need to get a G25 or 30 or something right sized and very spooly. We shall see after it is tuned. I've had to back the boost and boost ramp off to stop the thing from pinging since the highflow went on, so I've been almost living the NA life for 9 months now! Injectors are recently in hand. AFM is in hand. Dyno is fixed. Just need to clear a queue of f**king Supras out of the way (and probably fit my new gearbox). So....some time this year? Lol.
    • GTSBoy
      braided lines for the turbos

      By GTSBoy · Posted

      For what I gather is a Sunday/summer car....braided is fine. You're not going to be left without a vehicle and you have plenty of time for inspection/maintenance. Oof. I wouldn't use them that way. They can probably handle the temperature** but the internal corrugations means that their flow characteristics are a bit shit. Lots of extra friction and pressure loss. Makes them flow like the next pipe size down. ** They are stainless, and the stainless can usually be at least something like 304L, which is pretty good at higher temperatures (unlike 316L, which I would use for a wrt/corrosive environment, but not a particularly hot environment). But the welding needs to be top notch. And even then, because you usually need at least one cone-seat end on them (because you can twist the hose and do up both ends at the same time unless one of them is a union) they can be prone to coming loose with heat cycles.
    • sunsetR33
      braided lines for the turbos

      By sunsetR33 · Posted

      I don't have the OEM oil feed lines though and the turbo-wraparound line is torn, only has water. My plan is to get replacements for these and just connect a braided line to there. And make sure it's leak free. Hoses like these are also sometimes used to connect external wastegates, so for an EGR I think you're good using them.
    • sunsetR33
      Unpeeling the Orange

      By sunsetR33 · Posted

      Alright I understand. The most likely case is probably gonna be that I just keep the OEM unit in the car as long as it works.
×
×
  • Create New...