Jump to content
SAU Community

Not Holding Boost In R32

johnny84

By johnny84,
in Engines & Forced Induction

 Share

Recommended Posts

MANWHOR3 Proficient

MANWHOR3

Posted
Posted

That's pretty normal for an r32 stock turbo, especially without a boostcontroller (just using the stock actuator alone). If you have a look in the forced induction section, people have posted responses on how to solve this problem.

Personally, i'm using the jaycar iebc. It has allowed me to sustain 10-11psi all the way to the redline, and build boost much quicker too.

Sheriff Wan Proficient

Sheriff Wan

Posted
Posted

Mine doesnt drop off... then again it doesnt reall come on till 5,000 (HKS 2535) :)

Its just because its the standard turbo. Nothing to worry about i have driven many a standard R32 and theyr all the same.

A full exhast system with dump and hi flow cat give a bit more in the top end.

krush Collaborator

krush

Posted
Posted

my 32 done the same. i had cat back exhaust at first. i finished it off with a turbo back system and defo felt more gains, esp midrange to top end. still same boost though.

then put a fmic on. at first it *still* dropped the boost. but now, for whatever reason, it holds a steady 12psi...

no controller or anything.

i think its just normal. many posts on here saying that drop boost (even me! :D)

s.

FEMFTL Enthusiast

FEMFTL

Posted
Posted

Mine does it too, I was worried about it aswell.. i'm running at 12psi stock turbo..have a FMIC and pod.. and catback exhaust It just feels like its restricted or something.. if its normal then thats ok... I was stressing i was f**king the turbo. somehow..

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
      New kid on the block

      By GTSBoy · Posted

      The wiring diagram for the R33 RB25 is freely available, and is essentially the same same as most other RBs (just with differences as to which pin # does which job). To get the ECU to power up, you just need to provide power to the ECCS relay, and have the other power feeds that come in from the top left of the wiring diagram (wrt the ECU) that give perma power to the fuel pump relay, the ECU itself, etc etc, all connected. When you put power on all these it will just come to life. It's pretty clear from the diagram what needs to happen. Just follow the lines from the 12V + supply stuff in the top left over towards the ECU. I've even posted snips of such diagrams (not for vanilla 25, I think for Neo and 26) to various threads here in the last few months, talking about what it takes to get the fuel pump and FPCM up and going. Search these up and they will help get you started on doing the same with the vanilla 25 diagram. Hell, for all I know, I've done the same with that one in years past and have forgotten.
    • Duncan
      New kid on the block

      By Duncan · Posted

      Yep...so unless someone posts up the answer you will need to probe from the ECU connector to the dash plug with a multi meter in continuity mode to trace the wires.  Note the ECU has multiple - and + (and across different key settings - Battery, IGN and Start) and most likely the power is fed from the connector(s) that is normally near the left hand headlight.
    • Songo
      New kid on the block

      By Songo · Posted

      Thanks Duncan, I am actually just trying to get the Rb turning and running with the RB25DET S2 original loom itself  I am just trying to get it going outside the body and not thinking about the S15 or trying to match anything to the S15 loom at all I am only trying to see if anyone has done this and what pin they found to be the ignition trigger and ECU+/- on the dash connector, that's about it. Thanks  
    • iain_ST44GA
      M35 VQ25DET starter motor

      By iain_ST44GA · Posted

      Hi Guys, Does anyone know any aftermarket part numbers for a starter motor to suit the VQ25DET? I can find lots of alternative part number for the VQ35DE, which I assume would fit, but there is a lot of conflicting information out there. Thanks..
    • Murray_Calavera
      R33 GTR running -9 with no tune

      By Murray_Calavera · Posted

      I don't understand how this hasn't boiled down to - Upgrade the turbo when you have everything required. ECU, injectors, fuel pump, turbo, etc. Do it all at once.  If you don't have everything required, just enjoy the car as it is and keep saving up your pennies. 
×
×
  • Create New...