Jump to content
SAU Community

VG30 installation onto RB20 help

Cool Hand Luke
 Share

Recommended Posts

Cool Hand Luke Community Regular

Cool Hand Luke

Posted
Posted

Im going to go and buy a fairly low KM single turbo VG30 turbo on monday for $450 (to put on my rb20). What mods need to be done, at the moment i have a turbo back exhaust with a seperate dump, will i need to get a new dump pipe made up? Thats my biggest concern. Also does this turbo have a ceramic or steel exhaust wheel? And what else do i need to do to fit it on? What is the max boost i can run with it?

Link to comment
https://www.sau.com.au/forums/topic/19816-vg30-installation-onto-rb20-help/
Share on other sites
lowlux Proficient

lowlux

Posted
Posted

u have to find out yourself if its got ceramic wheels or not,cause theres both in the vg30turbo range, Max boost id say around the 16psi mark with some good tuning and a fmic, but i rekon the turbo could take a little extra 2-3psi for short little bursts. And yes if u dont get the dump pipe with the turbo then you will have to get a dump pipe and your front pipe changed to suit, but if u get the dump with it,any exaust shop will be able to cut and shut a new flange to suit the new vg30 dump pipe. Also u might have to get some Bundi pipe and some fittings from a Hose/Hydraulic store :) hope that helps

Cubes Grand Master

Cubes

Posted
Posted

The VG30 with good tuning should be ok for up to 1.2bar.

I think they all have ceramic exhaust wheels unless you go for a really old school VG30ET turbo.

I had a VG30DET turbo that was ball bearing and ceramic. It was definately a lot less responsive than the standard turbo and made full boost around 4000rpm.

I wasn't happy with it as it felt slower than the standard RB20DET turbo running 16psi so I pulled it back off.

Sure it rev'd a bit better up over 6000rpm but getting there was a bit slower.

It also felt like I really had to give it heaps of shit just to hit boost in first gear, so basically expect to have almost no boost in first.

  • 5 months later...
Cubes Grand Master

Cubes

Posted
Posted

Stick with the RB25 turbo on the RB25. The VG turbo isn't as good as the RB25 turbo. The VG has a smaller compressor so it is a step backwards.

TO be honest I would buy a RB20 turbo over a vg30 for the street. The VG is to laggy.

T0nyGTSt Grand Master

T0nyGTSt

Posted
Posted
Stick with the RB25 turbo on the RB25. The VG turbo isn't as good as the RB25 turbo. The VG has a smaller compressor so it is a step backwards.

TO be honest I would buy a RB20 turbo over a vg30 for the street. The VG is to laggy.

That's good to know.

I wanted to stick a VG30 on my RB25 but it seems I can only get the roller bearing models.

May as well stick with the RB25 if it's laggier.

T.

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

    • 677_GTR
      R33 GTR running -9 with no tune

      By 677_GTR · Posted

      Thanks for all the replies fellas. Gonna finish putting it back together and see how it handles the set up. If it starts pinging it’ll be parked.
    • suko
      J50 clock date suddenly reset to January 1

      By suko · Posted

      Well, I can recommend the partial AV system translation CD I ordered from Car Audio Workshop in NZ. Whilst it didn't address the date issue, it has conveniently translated on-screen menu items into English, and now allows the GPS-received time to be offset in hours rather than minutes, so I can display Eastern Australian time accurately ( and bump it by another hour when daylight savings starts ).
    • GTSBoy
      Baron's R34 GT-R build thread - car in Japan for 5 years -_-

      By GTSBoy · Posted

      Yuh, if it's 45°C outside, my car is driving in it.
    • soviet_merlin
      Baron's R34 GT-R build thread - car in Japan for 5 years -_-

      By soviet_merlin · Posted

      I'd be curious to hear more. Otherwise, have you driven a modern x-trail? I wonder how it compares. Here in Australia they are/were popular for rentals and fleet vehicles. I have been in some and my impression was they are bad. But, this may have been very different in the 2000s at a good trim level. Twenty years is plenty of time to make the model worse. I do very much agree with the 2 silver cars in the garage approach. But, not driving because it's too hot would not leave a lot of time in the year for many Australians. I don't think you need to worry too much unless the car has actual issues with overheating. 
    • BaronOBeefdip
      Baron's R34 GT-R build thread - car in Japan for 5 years -_-

      By BaronOBeefdip · Posted

      Back again. I returned to Japan in Jul/Aug to spend time with the car on my birthday and remind myself what all the sacrifice and compromise is for. It happened to line up with the monthly morning meet in Okutama, which I have been wanting to go to for a long time. It's a unique event at a unique spot with really rare, interesting, and quirky cars. It's where all the oldheads and OGs gather. The nighttime scene at DKF certainly has its place and should be experienced if you're into cars, but there's too much bad attention and negativity around it now. IMO the better time is Sunday morning at DKF or Okutama; it's more chill and relaxed. I'm glad I was finally able to go, but not sure it's worth the drive from all the way from Nagoya immediately the day before, unless I was already staying in Tokyo for the days right before the meet, because you have to wake up quite early to make it in time. Funnily enough though I didn't drive the car all that much this trip because it was just too damn hot. While there were zero issues and running temps were nominal and the A/C was strong, RBs already run crazy hot as it is. Sure, it took it all like a champ but something about driving these cars in the ridiculous heat/humidity bothers me and makes me feel like I'm asking too much of it. I'm just me being weird and treating the car like a living thing with feelings; I'm mechanically sympathetic to a fault. Instead I was mainly driving something else around - a KX4(silver) 2001 X-Trail GT, that I acquired in May. There's a few different flavors to choose from with Xs, but visually it's the Nissan version of the Honda CR-V. Mechanically it's a whole different story as this, being the top-trim GT, has an SR20VET mated to a four-speed auto and full-time AWD! It was a very affordable buy in exceptional condition inside and out, with very low mileage...only 48k kms. Most likely it was owned by an older person who kept it garaged and well-maintained, so I'm really happy with how it all worked out. It literally needs zero attention at the moment, albeit except for some minor visual touch-ups. I wanted something quirky, interesting, and practical and for sure it handily delivers on all three of those aspects. I was immediately able to utilize the cargo and passenger capacity to its full extent. It's a lot of fun to drive and is quite punchy through 1st and 2nd. It's very unassuming -in the twisty bits it's a lot more composed than one would think at a glance- and it'll be even better once I get better tires on it(yes, it's an SUV but still a little boat-y for my liking). So...now I have two golden-era Nissans in silver. One sports car and one that does everything else; the perfect two-car solution I think👍 The rest of the trip...I was able to turn my stressed brain off and enjoy it, although I didn't quite get to do as much as I thought. I did some interesting things, met some interesting people, and happened into some interesting situations however, that's all for another post though only if people really want to know. Project-wise, I went back to Mine's again to discuss more plans and am hoping to wrap that up real soon; keep watching this space if that interests you. Additionally, while working in the tormenting sweatbox that is the warehouse, I was able to organize most of the myriad of parts that my friend is storing for me along with the cars, and the 34 has a nice little spot carved out for it: And since it can get so stupid hot in there, that made it all the more easy -after I was standing there looking at the car and said 'f**k it'- to finally remove all the damn gauges that have mostly been an eyesore all this time. Huzzah. The heat basically makes the adhesive backing on the gauge mounts more pliable to work with, so it was far less stressful getting this done. I didn't fully clean it up or chase the wiring though; that will happen once I have the car in closer possession. Another major reason to remove all that stuff is to give people less reasons to get in my car and steal s**t while it's being exported/imported when/if the time comes, which leads us to my next point... ...and that is even though it's time in Japan is technically almost up since it's a November car and the X would be coming in March, I'm still not entirely sure where my life and career is headed; I don't really know what the future looks like and where I'm going to end up. I feel there's a great deal of uncertainty with me and as a result of that, it feels like I'm at a crossroads moreso now than any point in my life thus far and there are some choices I need to make. Yes, I've had some years to consider things and prepare myself, however too much has happened in that time to maintain confidence and everything feels so up in the air; tenuous one might say. Simply put, there's just too much nonsense going on right now from multiple vectors. Admittedly, I'm struggling to stay in the game and keep my eyes on the prize. So much so in fact, that very recently I came the closest I ever have before to calling it quits outright; selling everything and moving on and not looking back. The astute among you will pick up on key subtext within this paragraph. In the meantime I've still managed to slowly acquire some final bits for the car, but it feels nice knowing there's not much left to get and I'm almost across that finish line; I have almost everything I'll ever want for my interpretation and expression on what it is I think an R34 should be. 'til later.
×
×
  • Create New...