Jump to content
SAU Community

Vg 30 Highflow Vs Rb25 Highflow

falky929

By falky929,
in Engines & Forced Induction

 Share

Recommended Posts

Vincent--TT Enthusiast

Vincent--TT

Posted
Posted

I heard from a few different guys planning to do with Hi flowed VG30. They sounded it'z not a hard job, but good value for money.

But still learning for the detail myself... not much can help.

Sorry for hijacking.. but wondering is R34 turbo same as R33?! (sorry, new guy to skyline)

R31Nismoid Grand Master

R31Nismoid

Posted
Posted

To the OP - At the end of the day it comes down to wheel choice, combo, how much porting and so on.

The question is so open ended no-one can answer unless you at least post the FULL specs of the turbos.

As for ‘how long will it last’ - That’s like asking how long is a piece of string, no answer to that :down:

The .63 rear ended VG30's turbo can be high flowed to produce upto 300rwkws with supporting mods. RB25 R33 turbo's only capable of 230rwkws.

R33 RB25 turbos can make 250-260rwkw in a hi-flow form no problems. Have done so many many times before.

RB25 Dyno Sticky thread gives many examples, so 30rwkw more capable without a problem.

epigram Apprentice

epigram

Posted
Posted

Are the turbo components interchanable between VG30, RB20 and 25. i.e. can you put the VG30 compressor wheel and housing onto RB20 core and with RB20 exhaust bits(or vice-versa) and bolt that to an R33 to get a heap of boost with minimal lag? I read Sydney kid put a RB20 exhaust parts on his Steaga to get the bottom end torque for towing he was after.

andymoocow Grand Master

andymoocow

Posted
Posted

My GCG R33 high flow makes 242rwkw easily, tuner said it would have done 255 but i do a fair few track days so he didnt want to boost it too hard. Treated properly it should last a long time, like any good turbo should.

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

    • dbm7
      R34 Skyline climate control unit transistor

      By dbm7 · Posted

      Bit of a pity we don't have good images of the back/front of the PCB ~ that said, I found a YT vid of a teardown to replace dicky clock switches, and got enough of a glimpse to realize this PCB is the front-end to a connected to what I'll call PCBA, and as such this is all digital on this PCB..ergo, battery voltage probably doesn't make an appearance here ; that is, I'd expect them to do something on PCBA wrt power conditioning for the adjustment/display/switch PCB.... ....given what's transpired..ie; some permutation of 12vdc on a 5vdc with or without correct polarity...would explain why the zener said "no" and exploded. The transistor Q5 (M33) is likely to be a digital switching transistor...that is, package has builtin bias resistors to ensure it saturates as soon as base threshold voltage is reached (minimal rise/fall time)....and wrt the question 'what else could've fried?' ....well, I know there's an MCU on this board (display, I/O at a guess), and you hope they isolated it from this scenario...I got my crayons out, it looks a bit like this...   ...not a lot to see, or rather, everything you'd like to see disappears down a via to the other side...base drive for the transistor comes from somewhere else, what this transistor is switching is somewhere else...but the zener circuit is exclusive to all this ~ it's providing a set voltage (current limited by the 1K3 resistor R19)...and disappears somewhere else down the via I marked V out ; if the errant voltage 'jumped' the diode in the millisecond before it exploded, whatever that V out via feeds may have seen a spike... ....I'll just imagine that Q5 was switched off at the time, thus no damage should've been done....but whatever that zener feeds has to be checked... HTH
    • 25RBGT
      Got this r31 silhouette flood car to rebuild.

      By 25RBGT · Posted

      First time we have seen lights 
    • Wazmond
      WGNC34 - floor mats

      By Wazmond · Posted

      I think Fitmit had some, have a look on there (theyre Australian as well)
    • soviet_merlin
      Howdy Y'all

      By soviet_merlin · Posted

      Hah, fair enough! But if you learn with this one you can drive any other OEM manual. No modern luxury features like auto rev-matching or hillstart assist to give you a false sense of confidence. And a heavy car with not that much torque so it stalls easily. 
    • soviet_merlin
      WGNC34 - floor mats

      By soviet_merlin · Posted

      Actually, I'd say all three are the automatic option. Just the different trim levels. The manual would be RSFS, no? 
×
×
  • Create New...