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R32 - Turbo Upgrade /rb25 Or Vg30?

Mr. iNFMS

By Mr. iNFMS,
in South Australia

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Ronin Experienced

Ronin

Posted
Posted (edited)
How did the power go with the richer afr's? Didn't drop too much?

Na i got some cam gears aswell and shaun managed to keep the power pretty much the same.

Awesome turbo those td06-20g's. On the std exhaust manifold or a nice highmount (Troy style)?

I'm to poor for the highmount, so standard manifold for me. Also keeps the cops away.

also sorry how much r the td06-20g???

Got it for 1200

Edited by Ronin
salad Veteran

salad

Posted
Posted (edited)

Here's my dyno sheet. Got a bit heat soaked after a fair few consecutive runs and dropped 5rwkw.

Dynosmall-1.jpgTurbo Tune's dyno is very new and apparently very accurate.

Calculated when I get full boost again, I get it by 3000rpm :ninja: So 200rpm earlier than what I said before! (edited that)

(calculated using gear ratios, not what the gay tacho says)

Everything will line up on the RB25 turbo to R32s except for the quite early models which have different size banjo bolts for the water lines (7/8" instead of 15/16" for the RB25 turbo)

Edited by salad
salad Veteran

salad

Posted
Posted

They are in completely different leagues. The TD06-20G is rated at 450ps (I think) where as the HKS GT2530 is only rated to 320ps.

2530 is only capable of around 220rwkw, where as TD06-20G can pull over 260rwkw

Nightcrawler Grand Master

Nightcrawler

Posted
Posted

My HKS 2530 is making 230rwkw and that is through an auto box, with only an SAFCII (so Power FC = no timing or other adjustments).

Yes, as Evil34 said my R34 Neo turbo is for sale $450. Perfect condition, no shaft play, will bolt-on.

I disagree with Joel's statement - the R34 Neo turbo is basically lag-free! Even though the 2530 is rated to be extremely lag friendly, the Neo turbo definitely spools up earlier!

I also have an all-in-one front/dump pipe to suit for that bit of extra grunt $200.

For an afternoons work in the garage a very nice upgrade that will see you around 180rwkw without any tuning and stock boost. Mine was 177rwkw before I pulled it off at stock boost.

Nightcrawler Grand Master

Nightcrawler

Posted
Posted

yeah she goes pretty hard - the auto loves it too! Took Munro for a drive in the other day and he was pretty impressed :)

Oh yeah, if anyone is interested in Skyline bits I am selling my turbo and lots and lots and lots of other (mostly R33) bits here (click)

Cubes Grand Master

Cubes

Posted
Posted
I disagree with Joel's statement - the R34 Neo turbo is basically lag-free! Even though the 2530 is rated to be extremely lag friendly, the Neo turbo definitely spools up earlier!

Andrew you missunderstood my statement. :)

The R34 GTT turbo DOES lag more than the R33 S2 turbo. No if's no buts.

The reason Nissan was able to step up the turbine housing on the Neo motor without having increased lag issues was due to the head running better cams that pick up low end torque, improved VCT operation and improved ecu mapping.

The R34 GTT turbo is a great turbo don't get me wrong. BUT for the RB20DET the R33 S2 turbo is THE best turbo out of the nissan RB turbo line up.

Saying that the R34 GTT turbo may make ever so slightly more peak power than the R33 S2 turbo. BUT as I mentioned earlier, on the RB20DET average power is what accelerates the car quicker to its peak power. :D

Nightcrawler Grand Master

Nightcrawler

Posted
Posted

ah yeah mate my bad, you are correct. Also the nylon impeller is what counteracts some of the extra lag from the larger housing. The Neo turbo would be fine on an RB25DET in an R33 though. More top end power too.

nisskid Grand Master

nisskid

Posted
Posted

finnally installed an RB25 turbo to my RB20 after seeing it reccomended alot. definately feels laggier, but i rekon alot of that will go by putting a decent exhuast back on (went from 3.5 staright through, to stock). up high the difference is massive, boost is smooth and really strong once u get the RPM a bit, alot stronger than the rb20 turbo up high.

  • 1 year later...
migs Enthusiast

migs

Posted
Posted

So what ya'll saying is that the vg30 turbo is too laggy on the rb20det motor

what turbo are you talking about

The jurnal bearing t3 style vg30det turbo?

or

The ball bearing t3 style vg30det turbo?

cause i have heard about some good setups with the vg30det ball-bearing turbo

Birth Experienced

Birth

Posted
Posted

I have had a stock silver -top RB20 turbo, a VG30 ball bearing and an RB25 Neo turbo on my RB20DET. I distinclty remember loving the VG30 when I put it on because it gave a fair bit extra kick; but it comes on far too late. I drove around for many years with this.

About a year ago I went to th RB25 Neo which is a massive improvement over the VG30, the car feels just as fast but with much less lag; having said that I would prefer less lag from the RB25 Neo to the point where I would go to the Series 2 R33 RB25 turbo next time just on peoples' say so.

Nightcrawler Grand Master

Nightcrawler

Posted
Posted

^^^ The R34 Neo turbo is by far the most responsive turbo of any Nissan oem turbo, as it has a lightweight nylon impeller.

If you were going to change to a Series 2 R33 turbo expecting less lag, you would be very sorely disappointed.

AndrewJZX100 Mentor

AndrewJZX100

Posted
Posted

Holy thread revival Batman

My current RB20 with a VG30 turbo feels a fuckton nicer on the street than my old RB20 with R33 series 2 turbo, so much torquier. Being 2 different engines it could be any number of things but all I know is my current car pulls way harder in low rpm than the old one, with a supposedly laggier turbo :(

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