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One of my exhaust wheels parted company the other day on my R32 GT-R so it's upgrade time. I have a Power FC and a Blitz SBCiD III already (not installed) and was thinking of adding turbo's, injectors, fuel pump and FMIC.

I've been thinking of a HKS 2530 kit but some posts have mentioned GT RS and GT SS. My priority is not really top end, quick spool up and midrange is what I think I'm after.

Secondly, what size/type of injectors should I be looking at?

Thanks in advance

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sounds similar to my project (althoguh my stock turbos are still good :P ) I suggest the GT-SS kit, with 550cc - 700cc injectors and a nismo intank replacement pump.

Tuning, as always will be important - I'm not going to guess what your RWKW will be, as things vary but expect 300+ (mine makes 230 on the stockers with 10psi - stock ECU, inj, pump. 3in exh)

I'm going to be fitting GT2530's to mine (when I get the gaskets.....)

Good luck

I would suggest HKS GT2530/GT2540 or GReddy T517Z/T518Z. Dont rule out the N1 turbos (R34 is ball bearing i believe). Thats what i am running. There are a few turbos being sold on the forum and quite a few in ebay (search for GTR).

If your after response go for the GT-RS or SS the T517z's are a little laggy but the T517z and the GT-SS can make up to 300kw's+ (with a good tune)

I'd personaly go GT-SS or GT-RS as the response is really good on them, for the power they can produce. But the price is also expensive!

:P

Jun

GT-RS i thought were a bit laggy?

The GT-SS seem to be a good turbo for spool up to make over 300rwkw, or if you want to save a few dollars go for 2530, they will make more power, and be a tiny bit laggier than GT-SS

avoid the 2540's, GT-RS & T517z (10's), as these will all be too laggy on your application. That is why i went with the GT2530's. pick either GT-SS or GT530's..... (the GT-SS is the newer design). Someone on the forums made 290awkw on 18psi with the GT-SS, and is aiming for 350awkw....

I went for R32 N1s (group A) same size as the 2530s I believe. I got mine from the Jap yahoo actions through Slidewize imports, $1670 for both almost like new! A little laggier than the standard tubs but strong mid to top end.

R34 N1s would spool faster but probly cost an extra thou. Just depends on cost, I couldnt justify the cost of GT-SS tubs but they would be a good choice for the street.

I'd like the car to remain reasonably civilised, as I'd be driving it mainly on the street with the (very) occasional track day. I'm not a drag racer. As far as money goes...I'd prefer to pay a bit more if I thought I was getting what I wanted, but that doesn't mean I have unlimited funds!

I guess what I'm asking is, what is the on-road difference is between 2530's, GT SS's etc..

Thanks again guys, appreciate the advice.

I like 2530's, I prefer their average power. The GTSS's have more lower in the rpm range but not much, they loose more in the top end. I never use plain bearing turbos so the Trust's would not be on my list. I think 2540 's are the worst turbo pairing HKS have ever sold, they have a big mismatch between turbine and compressor sizing.

Bottom line, the GTR with the 2530 's made more power EVERYWHERE than standard and that's was enough for me.:P

I have r33 n1 's in mine and they are great . 2530 's or gtss 's i would go for .

the gtrs's are very laggy and you would need to run high boost 1.5 bar + .

I run 1.2 bar on my n1's and they pull hard from 4000 all the way to 8000 rpm.

I would check the engine if i was you before i install the new turbos . If you had the stock turbos with ceramic wheels and one let go you may find that the ceramic dust has gone through the engine and scored the bores . Which turbo let go ? the rear ? If yes check compression and do a leakdown test on the rear 3 cils to make sure you don't install good turbos then you have to pull the donk out .

One of my exhaust wheels parted company the other day on my R32 GT-R so it's upgrade time. I have a Power FC and a Blitz SBCiD III already (not installed) and was thinking of adding turbo's, injectors, fuel pump and FMIC.

I've been thinking of a HKS 2530 kit but some posts have mentioned GT RS and GT SS. My priority is not really top end, quick spool up and midrange is what I think I'm after.

Secondly, what size/type of injectors should I be looking at?

Thanks in advance

Guest two.06l
Bottom line, the GTR with the 2530 's made more power EVERYWHERE than standard and that's was enough for me.:D

You got that right S.K. We have the full HKS 2530 kit on Staceys car and for a street car, the response is second to none. With the correct cam selection and timing you cant go past them. Its even more surprising that the technology used to produce these is now nearly 15years old.Paul...DIRTgarage.

I like 2530's, I prefer their average power.  The GTSS's have more lower in the rpm range but not much, they loose more in the top end.  I never use plain bearing turbos so the Trust's would not be on my list.  I think 2540 's are the worst turbo pairing HKS have ever sold, they have a big mismatch between turbine and compressor sizing.

Bottom line, the GTR with the 2530 's made more power EVERYWHERE than standard and that's was enough for me.:D

SK as usual is on the money, the SS's are 1mm smaller in the compressor wheel so hit earlier, but for greater average power you can't go past 2530's.

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