Jump to content
SAU Community

Vic Wasteland Thread

R31Nismoid

By R31Nismoid,
in Victoria

 Share

Recommended Posts

  • Replies 84.1k
  • Created
  • Last Reply

Top Posters In This Topic

  • Birds

    7929

  • joeyjoejoejuniorshabadoo

    6791

  • Sunkist

    6123

  • UNR33L

    4177

Popular Days

Top Posters In This Topic

Popular Days

Popular Posts

joeyjoejoejuniorshabadoo
joeyjoejoejuniorshabadoo

probably worth more than your D1R's

Mohsen
Mohsen

i kinda want one. name him al pacacino.

Birds
Birds

You laugh now, but when I'm at a formal occasion with a shitty DJ and they need someone to drop Dre beats...I have something up my sleeve.

Posted Images

Birds Grand Master

Birds

Posted
Posted

I'm no expert on the physics of flow and pressure, but I would think that regardless of length (to an extent), once a tube has been filled with air or fluid, then changes in pressure should be near instantaneous at either end?

Alvin?

emts Grand Master

emts

Posted
Posted

I'm no expert on the physics of flow and pressure, but I would think that regardless of length (to an extent), once a tube has been filled with air or fluid, then changes in pressure should be near instantaneous at either end?

Alvin?

Think of it this way..do you want air pockets in your brake lines?

some fluids are very im-compressible so yes the pressure change would be near instant.

something more compressible ie air, it's going to take more to impact it, your going to have to change the pressure of a much greater volume so I would expect lag to increase.

plus same goes with zorst gases getting to turbo they have to travel more distance.

Birds Grand Master

Birds

Posted
Posted

But in having more distance to travel there is also restriction too, so whatever detriment it gives to spooling the turbo, it could help with the engine building up RPM too?

Rekin Grand Master

Rekin

Posted
Posted

It is external gate...

As the turbo is 4-5M back from the engine it shouldn't get too hot, there will be a heat shield over it all, and hopefully carpet back over the lot. I have to test it with an infra-red thermometer on the dyno first.

Lol something about a turbo sealed in the boot makes me feel uneasy.

That is going to be a lot of heat and no doubt the hot air will enter the cabin area.

Cut into the floor of the spare wheel bay and set up some cold air feed

xALmoN Grand Master

xALmoN

Posted
Posted

I'm no expert on the physics of flow and pressure, but I would think that regardless of length (to an extent), once a tube has been filled with air or fluid, then changes in pressure should be near instantaneous at either end?

Alvin?

i'd say there should be a little lag with regards to spool but, nothing serious. 4-5m isn't that long. As air is a compressible fluid, at even at scotty's 45psi, that just resolves to 3bar, which does nothing for compressibility, so there will still be an effect, though, pipe length is a lot less of a factor than a restriction.

But theoretical vs physical, i still think scotty should give it a try.

scotty nm35 Grand Master

scotty nm35

Posted
Posted

Don't worry, I will be. :P

The turbo won't be laggy, the engine should have the .82 rear GT35 pushing 20psi by around 2.5k, but it may not be as responsive as it would be hanging off the manifold...

The piping up and back is 2.5 inch so not too much area to fill.

kaitoukid Veteran

kaitoukid

Posted
Posted

Haha, days off important too :P. What is not good is when you take days off, and then unexpected events mean you can't go on days you were planning to go !

Also gotta figure out if it is indeed just my bulb that has burnt out in my headlight... if it is... china bulbs off ebay, $10... phillips like $67+ ... DECISIONS... Not sure if trust quality (+ shipping time probably like 2 weeks+) ... but then dat money =[

Guest
This topic is now closed to further replies.
 Share
Go to topic listing


  • Similar Content

  • Latest Posts

    • Kapr
      Boost cut after swap(RB25DET NEO) R34

      By Kapr · Posted

      Hi. Sry iam not a mechanic and iam not at the car atm so i dont know 100% but they told they measure those and even try to change those. AFM they have two. Coils are new a they have my old one too. Plugs too. ECU...we have 25 NEO stock and Nistune 25 NEO.   But i dont know if any one those could be the problem and why/if/what can cause this, Only thing they did not check is fuel...but that walbro 255 is new(like 1,5 years)... That fuel pressure gauge idk...but i let them know Any suggestions?   EDIT: how can they know if it is like you say he ECU pull power when it reaches a specific boost level that is too high? Tha car has boost controler
    • Duncan
      Boost cut after swap(RB25DET NEO) R34

      By Duncan · Posted

      Can you clarify what you mean by boost cut, do you mean it misfires both when under load (driving) and when stationary and out of gear? Or does the ECU pull power when it reaches a specific boost level that is too high (boost control issue)? Does it occur at idle with no throttle? When you say "the ECU is OK", what ECU is it and why do you think it is OK? Have you used the NEO ECU, and if so do you have a MAP sensor attached? Same for the AFM, why do you think it is OK? Do you have any way to put a fuel pressure gauge on it (even just a mechanical one between the fuel filter and fuel rail)?
    • Kapr
      Boost cut after swap(RB25DET NEO) R34

      By Kapr · Posted

      Hi.. Just another problem. So maybe you can help. I(my mechanic) done swap from my RB20DE NEO to RB25DET NEO. Everything is OK but we have a boost cut. Coils/Plugs are ok...AFM is ok. ECU is ok. I have Walbro 255 but it "changed" sound few months ago(you can hear it ouside) you did not hear that when it was new(maybe faulty?) Sooo...what now? What can cause this boost cut? It is even when you standing still...
    • BOLGE
      R34 Plug Identification

      By BOLGE · Posted

      legend thanks mate !
    • fatz
      Neil's R33 Gts-t Build

      By fatz · Posted

      Skidz
×
×
  • Create New...