.86 & .64?

[Black_CSR]

Hi Guys..

Just wondering what u guys think? I am gettin a 2530 Hi Flow spec Turbo soon but the one i'm gettin is

in a .86 T28 turbine housing in a .60 comp so identical to 2530 except its .64 turbine as .64 will seem too

small for RB25DET.

Will i get slightly more power @ .86? I'm thinking of running 17-18psi so get about 230rwkw and max out the

injectors and AFM when i get my Power FC tune.

I have all the basic supporting mods like FMIC, 3" Turbo Back, Bosch910 pump, Splitfires, HKS EVC, Apexi Pod

with Metal Intake Pipe. Just want to know if i should get anything else like bigger AFM, injecorts or possibly step 1

cams b4 i go 4 the Tune?

Cheers

Ces

[Ehgriez]

better in the forced induction section id say.

[alpinestars]

smaller would be responsive but loose top end but if you got bigger it wont be restricted top end and will squeeze more power and will be a tad laggier than the smaller

and would suggest getting injectors and afm but meaning you will have to get a computer of somesort aswell

[Black_CSR]

I have Power FC already.. I'm thinking if i'm only gonna get 230rwkw that the Stock Injectors and AFM should b fine unless i make abit more

n therefore get bigger AFM n bigger injectors or FPR to give it some headroom.

[bubba]

I reckon you'll max the AFM way before 230rwkw.

I maxed mine at 183rwkw on the RB30 (but it wasn't maxed with 183rwkw on the RB20).

[bcozican]

as above afm maxed out

0.86 housing on a 2530 is defeating the point isnt it ? wouldnt u just be shifting the curve to be laggier effectively ?

that turbo can still only flow so much but is used for reponse on a rb25 with normal 0.63 housing HKS put on it...0.86 housing get more top end but still only flow 230rwkw

[Black_CSR]

Will b intresting to see what the results will be.. i posted in the Induction Forum.. n PowerBand will shift up the Rev Range.. 2530 is really suited

for an RB20.

[R32 Driver]

People put 2871 .86 on SRs and thats only a 2L (admitantly laggy IMO)

I think the .86 would suit the extra 25% capacity perfectly

As others have said 230kw/308hp would be at the limit of the AFM and injectors

Wouldnt bother with headwork @ that power level

[reNEGaDe88]

I have a mate running a 3076 (or 3072) with .64 rear housing. He makes 360rwhp, with almost no Lag on a Cam'd RB25 but flat top end.

If he then swaps rear housing for a .82 it can make an extra 50 hp.

The 0.86 rear housing a stock 25 would be good, a bit of lag for a meaty top end.

I would never run AFM or injectors at max. Get a Z32 AFM if you already have a Power FC

Edited March 10, 2010 by reNEGaDe88

[Pal]

i ran 350 rwhp with stock afm and no problems. depends how good the tuner is

[Black_CSR]

Thanks 4 the Input Guys..

I'm picking up some Pinkish 550CC injectors today and shortly Z32AFM i'm buying over east..

How much a bit more power will i put out with .86 housing as i hear it should hold all the way to

redline and not taper off, make a little bit more power than 230rwkw.. to like 235-240rwkw??

Basically i have a Disco Potato i think.. GT2860RS on .84 Housing on 58Trim.

My Friend adviced me once Injectors are in & AFM that i should get it Tuned straight away n

can't really drive it around much. So i'm thinking i'll get the workshop to install the Injectors and get it tuned

by them straight after.. AllStar Garage perhaps???

Edited March 12, 2010 by Black_CSR

[R32 Driver]

Yep.... take it to your prefered tuner and get it installed or install it all then tow it

Your gonna have idle issues with bigger injectors and no tune

[reNEGaDe88]

I am pretty sure with Power FC, and other advanced ecu's you can just tell it the size difference between current injectors and new injectors and it will trim that % off it, so that car runs like normal

[Black_CSR]

What's a recommended Tuner SOR u reckon??

I can possibly drive all the way to Malaga for AllStar Garage..

[Kaido_RR]

you can drive on an untune ecu aslong as you dial in the injector setup and afm setup very easy on pfc hc