Jump to content
SAU Community

Vg30 Turbo On Rb20?

vagynamite

By vagynamite,
in Engines & Forced Induction

 Share

Recommended Posts

discopotato03 Grand Master

discopotato03

Posted
Posted

Fair enough we we seemed to have learned that there is (was) a VG30DET that had a single ceramic BB turbo . Not being a big fan of Z31/Z32's I didn't know this engine option was available in other same (32) era Nissan luxo's . It does make sense that these OP6 VG30DET turbos were always a bit thin on the ground if these luxo's were more expensive lower volume cars rather than sporty R and Z series cars .

Anyway the thing is that the value in this turbocharger is the slightly larger turbine housing in a BB package with a slightly smaller compressor than RB25DET turbos have . AFAIK they should go straight onto an RB20DET with the correct sized water banjos/bolts and slight mods to the RB20s compressor outlet elbow - or possibly one off an RB25DET . From memory the VG30 part is a straight hose barb adapter where RB20/25 versions were a right angle bend . I think the 20s comp housing uses a slightly smaller PCD bolt circle and its adapter may have a slightly smaller ID .

RB25 elbow I think bolts on and may be the simplist way , cheers A .

StevenCJR31 Veteran

StevenCJR31

Posted
Posted

^^dont mean to constantly contradict you but the vg30dets and vq30dets are common in japan and are available from importers as these motors were in production from (at least) 1987 Y31 thru to 2004 Y34 therefore a plentiful source of engines/turbos /halfcuts etc

Lithium Grand Master

Lithium

Posted
Posted

Want to buy one? I may have one here :-P I don't rate them on RB20s, or in general - now you can get TD05s from Kinugawa in T3 flange you can get comparable spool and way better power brand new for a reasonable price

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

    • MBS206
      R32gtr sputtering and stalling

      By MBS206 · Posted

      I agree, don't go trusting those trims. As I said, first step is to put the logger away, and do the basics in diagnosis.   I spend plenty of time with data loggers. I also spend plenty of time teaching "technicians" why they need to stop using their data loggers, and learn real diagnostics.   The amount of data logs I play with would probably blow most people away. I don't just use it to diagnose. I log raw CAN data too, as a nice chunk of my job is reverse engineering what automotive manufacturers are doing.
    • joshuaho96
      R32gtr sputtering and stalling

      By joshuaho96 · Posted

      I'm aware, but unless you're actually seeing the voltage the ECU is seeing and you're able to verify the sensors are actually working I find it hard to just trust STFT/LTFT. I will say, logging the ECU comes naturally to me because it's one of the lowest effort methods of diagnosis and I do similar things in my day job all the time. Staring at 20+ charts looking for something that isn't quite right isn't for everyone. NDS1 allows you to log almost everything so that's normally what I do and then sort out the data later. 
    • MBS206
      Neil's R33 Gts-t Build

      By MBS206 · Posted

      Silly question, as I bet you've checked already, but the motor turns over by hand yes? I suspect Neil has a spare starter, though if not, I believe I have a spare R33 (or two) starter.
    • Duncan
      NPboosted manifold fitting purpose

      By Duncan · Posted

      Yeah just run one of those posts to the Link like GTSBoy said. From google it looks like a "mishimoto boost controller" is a manual boost controller. Since you already have the link just buy any MAC valve and plumb it in where the mishimoto is now. Wires to the solenoid should come from the Link's / standard loom boost control wiring (I guess you have an r32, not sure if it is gtst or gtr, if it is GTR where is a 2 pin connector near the engine bay fuse box/injector resistor for that purpose, assuming the standard boost controller is gone)  
    • GTSBoy
      NPboosted manifold fitting purpose

      By GTSBoy · Posted

      No. The ECU's hose is for a connetcion between the plenum (assuming single throttle body, not ITBs) and the ECU's internal MAP sensor. This is the primary load measurement of the ECU - so you need to get this one right. This has NOTHING to do with the boost contol. The wastegate also needs to see a boost signal - but it is actually far better for it NOT TO COME FROM THE PLENUM (again, assuming single TB, and not ITBs). This should come from the turbo's compressor housing (assuming there is a nipple on there, which there might well not be), or on the boost pipe somewhere between the turbo and the TB. On the pipe from the turbo to the intercooler is usually most convenient. The boost controller is then located between that boost source and the wastegate, ACCORDING TO THE CORRECT PLUMBING DRAWING FOR THAT BOOST CONTROLLER. There is no general diagram or instruction that will be correct for every case. Then the other ports on the plenum are for purposes such as Duncan described. If the boost controller has an internal MAP sensor, for a boost display, etc, then it will want to be hooked up there, alongside the ECU and the FPR.
×
×
  • Create New...