Hks 2530' Or Hks Gt-rs

[andz]

im having a bit of difficulties trying to pick which turbos to upgrade to

(yes ive read/searched the forum)

BUT i'm just wondering which turbos YOU would personally go for if it was your car

supporting mods for the R34 GTR (street use)

(currently making 269rwkw on stock turbos)

HKS turbo back (split dumps, front and catback, deCAT)

HKS adj cam gears

HKS 600cc injectors

Tomei poncams 264/264

Pfc

Pfc boost control

Bosch 044

Apexi intake pods (stock AFM)

Nismo twin plate clutch

*edit* Nismo AFMs to be added

If im aiming around 330-350kw atw, do i need any other supplementary mods?

Any advices/feedbacks (no flames) are appreciated

Help out a newbie

Cheers,

good to see the forums back online

Edited May 9, 2007 by andz69

[Pauly33GTS-t]

I would go GT-RS because they are just awesome like your current mod's list going into a turbo upgrade.

Although it is a common Stage 2 addition to get twin Hks 2530's. Can anyone with a GTR with these turbos please comment?

Edited May 9, 2007 by Pauly33GTS-t

[sewid]

- AFMs will be maxed out before you go past 315kw.

- It is not guaranteed but it is possible that your coils will fail immediately or after running a short time over 300kw

So in my opinion add splitfires and Nismo AFMs to your list.

Alternatively you can go Z32+Adapters AFMs but you'll need to set the intake piping up to suit the larger diameter AFM bodies.

As for the turbos - GT-RS's all the way.

[sewid]

To be honest though on a stock bottom end I would chose GT-SS's and save for a forged rebuild before going to the GT-RS's. Then you can go nuts with what you already have and sell the SS's. That's just me though I prefer to be ultra conservative.

[Pauly33GTS-t]

Yeah, he will need bigger AFM's, You are looking at around 500 for 2 Z32 AFMs Andy, then 3,700 for the turbo's (GT-RS) then a tune from Shaun (~400) then you may need a rebuild with forged internals... Stage 2 for you...

[Snowman]

If you get GT-RS you'll hate them on a 2.6L engine. It will be lag city. I bet you'd change them not long afterwards.

You should either be considering GT-SS (more response - less power) or the 2530's (more power - less response)

[andz]

forgot about AFMs

i have apexi pods (76mm), so changing to the Z32 pairs..id need to change my apexi intake pods

im quite aware of the "lag city" in the RS, but i like the power they deliver

wondering wat rpm do they come on? 5000?

what about fmic? will i be ok with stock ones? i think theyre 600x300 x60-70?

Edited May 9, 2007 by andz69

[Marco-R34GTT]

forgot about AFMs

i have apexi pods (76mm), so changing to the Z32 pairs..id need to change my apexi intake pods

im quite aware of the "lag city" in the RS, but i like the power they deliver

wondering wat rpm do they come on? 5000?

what about fmic? will i be ok with stock ones? i think theyre 600x300 x60-70?

You've got a twin pod set up then?

[andz]

yes marco..twin

thanks for the reply sewid & snowman <3

btw, have u sold ur GTR yet snowman?

[Swiper the Fox]

GT-RS turbo's on a street car is a bit silly really...id go for GT-SS turbo's for the street or 2530's if you can find a new pair.

[Beer Baron]

2530s are still available new from HKS.

I would go the 2530s or even SS.

as for AFMs, nismo AFMs will fit to your current Apexi intake kit.

as for what RPM RS come on, search through Blitz's posts, he is running RS on a 2.6litre RB26 and posted a graph recently.

[sav man]

I agree with snowman, GT-SS, or GT2530. I've got GT2530's on my car full boost at 4400 rpm and 311rwkw on a pretty stock engine (check the rb26 thread).

gtrs = lag

lag = gay

[andz]

2530s are still available new from HKS.

I would go the 2530s or even SS.

as for AFMs, nismo AFMs will fit to your current Apexi intake kit.

as for what RPM RS come on, search through Blitz's posts, he is running RS on a 2.6litre RB26 and posted a graph recently.

i did have a look at the SS, but they're not much of an upgrade from the stock turbos, thats why i tend to lean towards the 2530s and the RS'

Umm nismo AFMs?...arent these 80mm?

my pods are for standard 76mm AFMs, do they come with adaptors?, nice to hear, i'll have a look at them.

Thanks beer

[sav man]

Nismo AFM's are stock size, and similar voltage curve to Z32. I have a pair, and a stockers airbox. They'll fit fine

[Swiper the Fox]

i did have a look at the SS, but they're not much of an upgrade from the stock turbos, thats why i tend to lean towards the 2530s and the RS'

Umm nismo AFMs?...arent these 80mm?

my pods are for standard 76mm AFMs, do they come with adaptors?, nice to hear, i'll have a look at them.

Thanks beer

We changed from 2530's to GT-RS turbo's and made only 15kw more and had to rev the thing 1000rpm harder

the turbo's and a retune were the only thing that changed.

the GT-RS turbo's require a lot of other changes (capacity, headwork etc) to get them to perform

you must remember they are the airflow equivalent of a HKS T51R KAI (well almost)

[Snowman]

btw, have u sold ur GTR yet snowman?

Not selling it anymore. Decided to keep it and keep playing.

[BOOSTD]

were they the HKS GT-RS or garrett?

[Swiper the Fox]

were they the HKS GT-RS or garrett?

HKS 2530's and HKS GT-RS's

[Blitz]

If you get GT-RS you'll hate them on a 2.6L engine. It will be lag city. I bet you'd change them not long afterwards.

You should either be considering GT-SS (more response - less power) or the 2530's (more power - less response)

This seems to be a common myth

I switched from GT-SS's on a 2.6 to GT-RS's and im very happy with them.

IMHO with a tuner that knows how to set them up for street, they can be a very good package - Sure they are larger and therefore lagier than GT-SS's, but CRD did a great job optimizing my car for street performance with my existing 260 degree poncams and the GT-RS's on a built 2.6 bottom end.

[andz]

Nismo AFM's are stock size, and similar voltage curve to Z32. I have a pair, and a stockers airbox. They'll fit fine

learned something new

We changed from 2530's to GT-RS turbo's and made only 15kw more and had to rev the thing 1000rpm harder

the turbo's and a retune were the only thing that changed.

the GT-RS turbo's require a lot of other changes (capacity, headwork etc) to get them to perform

you must remember they are the airflow equivalent of a HKS T51R KAI (well almost)

a very constructive reply, thanks

i'll keep a note of that, 2530s are popular in the 'RB26 forced induction' for a reason