Jump to content
SAU Community

Recommended Posts

hey im looking at getting this:http://www.ebay.com/itm/88-NISSAN-Z-300ZX-VG30ET-SOHC-OEM-TURBO-TURBOCHARGER-/290887740617?pt=Motors_Car_Truck_Parts_Accessories&hash=item43ba42acc9&vxp=mtr

what else would i need to install this turbo? has anyone done it before and got any tips?
any help is appreciated.

Link to comment
https://www.sau.com.au/forums/topic/427642-vg30-turbo-on-rb20/
Share on other sites

Don't do it. That would be shitter than shit. If you want a VG turbo, you want the single turbo from the VG30DET. That is basically the same turbo as the the RB turbos, with an OP6 exhaust housing. A sensible upgrade option on an RB20 that has been done 10^55 times before and the specific tricks (not that there are many) would be found with a few seconds of googling.

VG30 on a 20 is crap, dont do it. I did the swap on my hr31 and it was really laggy, to the point that normal daily driving was a pain in the ass. I changed back to the stock turbo I hated it so much.

Go a highflow of the stock turbo, much better option, not alot of lag but alot of potential, my 32 had this and it made about 230rwkw and less lag then the vg did (tune would also help with that)

Dont put a op6 rear housed turbo on a 20, worst thing you could do in terms of drivability, would only be good if you used it for a highflow and wanted 250rwkw +.

Really any turbo bigger then stock is gonna suck unless you get a tune.

Define "recondition" though. These things are BB centre and ceramic turbine. Recondition usually means highflow which really just ends up meaning keep the front and rear housing and get all new the rest.

not sure what actually done to fix it but it was smoking worse than a ten pack a day cancer candidate , after it was reconned it was all good- no smoke

didnt know the VG30DET turbos were BB but knew about the ceramic part of it

Yep the right ones from the Z32 300ZX quad cam single turbo cars are BB . Really the only usefull thing on them is that OP6 sized turbine housing and it's arguably too big for an RB20DET .

So , many people just fit an RB25 turbo because they are common and generally cheap . Compared to a std 20s turbo the 25s one has a very slightly larger turbine housing and the same sized turbine . The compressor wheel is larger as is the compressor housing and it also has a kind of anti reversion groove machined into its snout .

Your call but I think an RB25s turbo is a better suited to an RB20 and they are much easier to find . Do a few searches and see what others thought about 3L turbos on 2L engines .

A .

I quite liked driving around an R32 with a VG30 OP6 turbo. Wasn't as laggy as the horror stories make out, and gave much more power at 12psi than the RB20 turbo had done at nearly 15. And this is coming from me, who whilst I appreciate that the RB20 is actually a good motor, used to absolutely hate the torqueless characteristic they have until they come on boost.

I must agree however, that if just looking for a mild upgrade, the RB25 21U is a better choice.

Edited by GTSBoy

Yep the right ones from the Z32 300ZX quad cam single turbo cars are BB . Really the only usefull thing on them is that OP6 sized turbine housing and it's arguably too big for an RB20DET .

So , many people just fit an RB25 turbo because they are common and generally cheap . Compared to a std 20s turbo the 25s one has a very slightly larger turbine housing and the same sized turbine . The compressor wheel is larger as is the compressor housing and it also has a kind of anti reversion groove machined into its snout .

Your call but I think an RB25s turbo is a better suited to an RB20 and they are much easier to find . Do a few searches and see what others thought about 3L turbos on 2L engines .

A .

i think youll find the z32 was twin turbo or non turbo not single turbo

Edited by StevenCJR31

No thats not true , there were single turbo versions of the SOHC (per bank) VG30"ET" and DOHC VG30"DET" . The one most people know about is the VG30 "DETT" Which had twin inlet manifolds and forward facing TBs . And a hybrid T2/T25 turbo on each exhaust manifold .

The single turbo ET and DET versions had a crossover pipe behind the heads to feed one turbo from two exhaust manifolds . The ET or Z31 (SOHC) version from memory had a plain bearing ceramic turbo with a smaller center section and no preload bolt head visible on the side .

Have a look at the last couple of pics in this link and note the "Ceramic Turbo" badge .

http://www.geocities.jp/ayanami31rei/Z31-report/656-ayanami300ZR/656-ayanami-with-vg30det.htm

Cheers A .

Edited by discopotato03

yep; there is confusion but it aint coming from me,as i said to disco before the z32 300zx didnt didnt come out with single turbo , it came out with TT or no turbo (VG30DETT or VG30DE)

the vg30det came out in the y31 cima and other luxury japanese cars

it had twin TBs on the passengers side of the engine and has the single(ceramic) turbo which i wilbe putting on my rb30det

I have a VG30DET turbo sitting in one of my R32's at the yard, from memory the 32 was great with it on, i see no issue in using the op6 or 30DET turbo on a 20 as you can put more boost through em than a 20 turbo anyway.

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


  • Similar Content

  • Latest Posts

    • I've heard the Tomei USA head gaskets are decent if you want to o-ring the heads but otherwise not recommended.
    • The 296mm rotors are the R33 turbo brakes. The 310mm rotors are the R34 turbo brakes. The calipers are nearly the same, but not. They're the same caliper but the R34 caliper has longer legs so that it sits out far enough to go over the rotor. The pads are the same for both. When you say, "I bough tsome EBC"....did you just mean pads? Or rotors? 310mm rotors fit under 17" wheels. There may be some wheels without enough clearance though. I can't fit my fingers between the barrel of my wheel and the "corners" of my R34 calipers, but there is plenty of room behind the spokes. This is on Enkei RPF1. You can fit 324mm rotors inside a 17" wheel, but I'd be willing to bet that it would be close to impossible with the Nissan/Sumitomo caliper (using an adapter, of course), because the Sumitomo caliper is fatter than the Brembo caliper that is supposed to go on the 324mm rotors.
    • Hi. Can someone tell me what brakes(and mainly WHERE) can i buy brakes on R34 GTT? I bought some EBC which SHOULD go on my car(i have GT but it has GTT brakes) but it does not fit, Brakes are "too" small(296mm) Are 310mm be good or? I have 17 inch wheel so no "big boys" but for me driving i just need one that fits and i can get here in EU/Czech.
    • Since winter isn't that harsh anymore in Poland, i will definetely drive it 365 days a year 😉. But if the snow hits i will try it for sure and let U know. Only swap i am planning to do is of course R34 GTR front 😍.
    • Hey. Very valuable information about pitwork, I will pay attention when buying any consumable parts 🙏 As for the carpets - I got a handful of information from nengun, from which it appears that indeed the carpets for the driver's side are OEM. They are not able to show me any pictures due to the long chain of different sales entities but after I place the order, as soon as the goods arrive at the nengun warehouse from which they will send the shipment to me they can send me photos and if my purchase differs from OEM I can immediately return it / cancel the purchase. I think I will give it a try 😉. Of course i'll let you know what's what as soon as i get them P.s. I know the topic is not relevant to the thread, but both nengun and amayama have these SICK 😍 trunk room lamps available. Do you know anyone who ordered them? I need to have one in my car
×
×
  • Create New...