RB25 wnt 250rwkw WICH TURBO??

[MACHINE!]

Which bolt on turbo will i need to make a

healthy250rwkw "BUT" with the most torque down low,

i figure i should run the more boost like 1.1bar to make it

rather than go external wich requires less psi but more

lag.

MY REASON: so on std boost my wife wont shit herself when it come on!!!

any help boys would be a appreciated

[cameron]

HKS GT-RS turbo, 2530, 2535 & 2540 are good for around 250rwkw's. The GT-RS is claimed to of have the power of the 2540 and the response of the 2530.

The next step up from them, still staying interal gate is HKS 2835ProS.

Jun

[Al]

Agree, HKS GT-RS

[siksII]

i think he has a gtr, which means that gtrs's would be laggy and produce lots more than 250 when they do come on boost.

if it is for a gtr, try gtss's 2530's or N1s, already they wont have much low down power(less than 4 grand) but go any bigger ie gtrs's and you wont have much power low down at all.

best bet for stockish low end would be hiflo the stock turbos and run more boost.

[Al]

i think he has a gtr, which means that gtrs's would be laggy and produce lots more than 250 when they do come on boost.

if it is for a gtr, try gtss's 2530's or N1s, already they wont have much low down power(less than 4 grand) but go any bigger ie gtrs's and you wont have much power low down at all.

best bet for stockish low end would be hiflo the stock turbos and run more boost.

READ the post title "RB25 wnt 250rwkw WICH TURBO??" :slap:

[SLY33]

GTRS is your best bet, you'll never do it with a 2530. 2835proS will do it easily at only around 1bar, torque down low wont be quite as good as the GTRS, but you'll have plenty of scope for more power. You might say 250rwkw is more than enough right now, but when you get it, you'll want 260. Then 270. Then you'll be looking at cams and more boost for the magic 300!

[ferni]

Stock fuel system isn't good for anymore than 250rwkw (unless you're from perth )

2 mates with gtsts run 2535's and both make around 235 nonshootout mode... or 250-255 in shootout mode... very responsive and very quick.

[lukits01]

Stock fuel system isn't good for anymore than 250rwkw (unless you're from perth )

You think with Fuel pressure regulator and a good fuel pump the stock fuel system would be able to support 250rwKw? (and I'm from perth ehhehe :headspin: )

Im about to try a 2535 but dont have injectors at the moment, hope it'll get 250kw

will have results by end of month

[paulr33]

well yeah if its rb25 then check out a hks2540 theyre a good well known mismatched turbo and is extra laggy but will flow more than 2530 in top end

or for around $2k get a gt30 with stock parts it should be laggy

[MACHINE!]

its for a gtS and the 2530 sounds torkie but if it blows i cant rebuild it thats y i like

trust turbos is there a greddy turbo thats like 2530 maybe T517Z or T518Z has

anyone had one of these on the old gts??

[Blitz]

its for a gtS and the 2530 sounds torkie but if it blows i cant rebuild it thats y i like

trust turbos

:uhh:

[paulr33]

but hang on a second, you said its for an rb25det, so do you mean

a) skyline gts with rb25det conversion

B) skyline gtst with stocker rb25det

not that it really matters

do you want

a) a mid power turbo that will hit 250rwkw

B) a mid/high power turbo with lots of lag and get 250 or a bit more

cos you've said you dont want low down torque as your wife will shit herself yet your looking at 2530, t51z etc which will have fairly good low down response (not laggy) and wont flow much top end (not enough for 250rwkw), sounds completely opposite to what you want? if you want laggy and flow enough for 250rwkw then i still stick with

hks 2540 (mismatched wheel/housing = laggy)

gt30 (on stock internals will be midish laggy, not much before 4k)

or speak to gcg in sydney and ask for a laggy turbo combination that will flow enough for 250rwkw on rb25det skyline maybe they can do a custom housing/wheel combo that it extra laggy for you and flow good for the same power level.

[Jago]

Stock fuel system isn't good for anymore than 250rwkw (unless you're from perth )

lol

response, i'd go for GT-RS, if you want something with more to offer later on down the track then the 2835

[R31Nismoid]

its for a gtS and the 2530 sounds torkie but if it blows i cant rebuild it thats y i like

you can rebuild any turbo. BB ones are just more expensive.

I've had my GT30 rebuilt

[Pio]

sorry to leach onto your thread, but same question for a 34 gt-t , wanting 400+kw from a single ?

[Al]

its for a gtS and the 2530 sounds torkie but if it blows i cant rebuild it thats y i like

trust turbos is there a greddy turbo thats like 2530 maybe T517Z or T518Z has  

anyone had one of these on the old gts??    

If I mis-read your post I apologise, but are you talking about hanging an aftermarket turbo off the side of a standard RB25DE. If this is the case I highly recommend against it, as to achieve that power you will need to lower the compression and change the internals. These turbos are fine on a std RB25DET but not on a std RB25DE.

Within the month you will be looking at a total rebuild, if not a new block if it decides to "kick a leg out of bed".

[MACHINE!]

Sorry boyz i meant GTST not gts. :headspin:

i dont think 250 rwkw with response/torque is a

contradiction at all its possible i just havnt found tha right

combo yet but i will.

Im not keen to push more than 250 so small bolt ons are

perfect for me. trying to find trust trbos with t3 flange cant find any?? is there any?

[MACHINE!]

If I mis-read your post I apologise, but are you talking about hanging an aftermarket turbo off the side of a standard RB25DE.  If this is the case I highly recommend against it, as to achieve that power you will need to lower the compression and change the internals.  These turbos are fine on a std RB25DET but not on a std RB25DE.

Within the month you will be looking at a total rebuild, if not a new block if it decides to "kick a leg out of bed".

its rb25t my mistake,

but just so u know high compresion na motors arent a

bad thing with turbos u get a lot more grunt down low u

spin any turbo round 1200rpm faster u just need to tune

ur ecu properly did it twice on a vl and a skyline and i ran

26psi threw the skyline wich i didnt need wiv t3/4 combo

and 2000rpm gave full boost an massive burnout torque.

tru story

[paulr33]

so you want 250rwkw thats laggy?

well thats easy gt30 stock internals, aftermarket ecu

youll be on the stock injector limit once it cranks past 4000rpm and hits its boost peak

also will need to do the usual bolt on mods exhaust, cai intake, clutch, tyres, airflow meter (not 100% but will help) etc. things like cams, better tune, cai intake will decrease lag and u want more lag so dont do any of those

[paulr33]

check out the rb25 turbo upgrade dyno post (search for it) and find the most laggy looking dyno graph. copy their mods and you shold be sweet. i suspect the hks2540 will be the most laggy or gt30 with stock internals, the gt30 is suited for a midly tweaked engine