Need Some Guidance!

[destrukshn]

Lol at outdated... I am embarrassed for you, and $15k, you are getting ripped

lol...

[GTR_JOEY]

haha @ Dave... f**kin crack up

anyway if you were goin to go single (in particluar) borg warner, you cuold probably nearly get away with a 300sx 83/75 with a smaller .91 housing, if not they recomend the larger rear housing which would definatly get you to 500 on E85.

Ive heard precisions are good, cant say first hand though

The BW are awesome bang for buck.. and sounds great

[XKLABA]

That was the engine dyno results, no airbox/intake piping, drivetrain etc.

Would be back under 500rwkw you'd think once in the car. Hard to say as no results got posted after that far as i know (be awesome if they were handy to see once incar).

oh ok, doesn't say engine or chassis dyno so I couldn't tell, though he has posted some where 533wkw in the 33 with -10s.

[R31Nismoid]

Pretty sure there was a video as well with it in the engine room

It's the only reason i remember it clearly (do you have a link to the graph of incar runs?)

[XKLABA]

ok, yeah haven't seen it

poor op,if i'm correct he asked how to make the best of this set, NOT should he run GT-RSs or not and instead of people helping him out he gets hammered with GT-RSs are crap or go single, people should be ashamed

I will say this big duration low lift cams are not the way to go, these turbos need backpressure between the turbo and engine, so the less overlap the better, and as little as possible out side the turbo, higher static comp ratio will help to by loading up motor better, I am also cleaning/smothing the exhaust ports aswell as a minimium, 3" dump pipes to a 4" exhaust would also be a minimium after that remember how they went on so it will be easier to change them to something not garret.

I am still going to use them as it is a street car and the steep ramp rate will make it feel fast for a mates

[XKLABA]

RB31DETT

HKS GTRS's

JUN Cams

PFC

ARC FMIC (big one)

twin 3" to single 4" to 5" exhaust

and other tricks

716hp-534kw @ 20psi

No injectors or fuel flow left. Will add another pump and get it happening

thought I saw it some where

[GUN_METAL_GTR32]

lol thanks bro

op is sweet. ive been sitting here with a bag of popcorn reading this shit thinking to myself when did all these nissansilvia members sign up to sau.

the twin vs single arguement is going to go on for ever similar to that of the holden vs ford etc arguement, there will never be a winner or loser just a bunch of dream boats looking like f**kwits because they think that god himself built there engines and there turbos are any different from anyone elses.

i dont give a f**k about the twin v single arguement - i clearly said it myself if rules in victoria werent so tight and cops didnt think they were judge dred i would 100% get a large single like a gt42r or something.

im not a teenager going for f**k off power to impress my mates or little broad minded persons on the pavement. ive had 3 gtrs now and a multitude of (some very highly modified) imported and european cars so i know exactly what i want out of the car for ME!!!

i asked 2 questions in my first post (still not answered on here but have recieved some insigtful pms from some members)

what head work do you recomend for a high powered rb26/30 (in comparison to what my engine builder has recomended)

what are ppls opinions on gt2871r

now my first question has been answered by other avenues so disregard it.

my second question regarding turbos has led me to believe that alot of ppl dont like 2871rs for what ever reason.

i understand that engine work, head work, cam selection etc needs to be carefully evaluated to make them work to there full potential (which on paper looks acceptable)

if people want to post about the benefits of going single turbo on my car you are simply wasting your time and making me have to read more posts so keep it to your self.

i have been in an r32 gtr with a pretty built engine (standard capacity) with 2871s making 400 kw and it was quite a good little package (5000rpm full boost) i feel that with my 30 block i should be taking 800rpm off that and get it to the low 4000rpm range which is where the gtx3582r would have been hitting full boost (have seen actual results on a car on a dyno similar engine with the same gtx3582r that i had with the tial housing)

now please continue your pointless never ending arguement and actually give me the responses im chasing

peace

[zebra]

We have given our answers, you engine builder needs to do it to suit

or would you like us to say

you need to take out exactly .8432356 mm of matierial from each of the intake ports

to flow exacly xx CFM at 28" HG

we cant do that

every engine is different

[jangles]

We have given our answers, you engine builder needs to do it to suit

or would you like us to say

you need to take out exactly .8432356 mm of matierial from each of the intake ports

to flow exacly xx CFM at 28" HG

we cant do that

every engine is different

This is what i was saying. get a builder that 'knows' how to make them work if you want to use GT-RS'

The correct cam selection, port job, secret squirrell stuff, that usually isnt revealed, to make things work.

The guys with years of experience building and tuning similar/different combos will make them work.

oh and $$$,

If your builder hasnt had the experience to make them work, you will just end up with a not so good result with them, where as the -5 would of achieved a similar feat.

we can tell you to put 290 degree cams in it, but if they dont match the specific port/head work. its pointless.

[GUN_METAL_GTR32]

spoken with my mechanic last night

have decided what im doing now

cheers

[FineLine]

spoken with my mechanic last night

have decided what im doing now

cheers

So you're puttin a single on it....Good move.

[GUN_METAL_GTR32]

lol

nah dude

gtx2867r twins

tial housings

internal gates

looking into e85 as well.

it will look stock enough from the top (all the piping will be black etc)

should make mid 400s and keep me happy enough.

[Piggaz]

67 mm versions.

Considering the result Gav made with the 63 mm versions (500 rwkw at 26 psi), this will be one wild ride!

Tial housing? Whats different with them and why the decision not to stick with the housing's that come with the HKS and Garrett versions of the large low mounts?

[N1GTR]

67mm versions are too big. Go the 60mm versions for your power goal.

[GTR_JOEY]

So you're puttin a single on it....Good move.

:D

[GUN_METAL_GTR32]

I like the how the tials look lol

nah from a bitta research ive found that the tial housings are .64 and the standard rear housing is .84 (i think) so will bring them on better!

However!

Tial rears are v band which means custom pipipng, manifolds etc so adds to the price alot and i dont think it will look standard enough!

Speaking with my engine builder he rkns that the extra price will be alot!

-5s will make 400kw +

Cost for -5's is like 2500 a pair

The gtx will make considerably more power (apparently) but cost is (from us website)

1450 each turbine housing

then add rear housing of choice

actuator of choice

actuator bracket

optional polished compressor housing

v bands

then u still need manifolds and custom piping as well!

Would be cheaper to buy hks 2530's

[zebra]

Trials are external gate only though aren't they

Never seen a tial v band housing with an internal gate setup

[GUN_METAL_GTR32]

Im not 100% sure tbh!

They arent released here for about 3 more weeks and the u.s. site i found lists like 20 diff options for them however none of them said ex gate!

[Piggaz]

Standard rear housings are .64 man.

Gav made 500 through them, if youre only after 450 why go to the added expense?

Either way, results will be interesting

[N1GTR]

I like the how the tials look lol

nah from a bitta research ive found that the tial housings are .64 and the standard rear housing is .84 (i think) so will bring them on better!

However!

Tial rears are v band which means custom pipipng, manifolds etc so adds to the price alot and i dont think it will look standard enough!

Speaking with my engine builder he rkns that the extra price will be alot!

-5s will make 400kw +

Cost for -5's is like 2500 a pair

The gtx will make considerably more power (apparently) but cost is (from us website)

1450 each turbine housing

then add rear housing of choice

actuator of choice

actuator bracket

optional polished compressor housing

v bands

then u still need manifolds and custom piping as well!

Would be cheaper to buy hks 2530's

Well look, this seems like you haven't done much research because for a start you've got the rear housing wrong.

Also let's face it, you've asked for 450-500awkw. That's MASSIVE numbers. Which equates to MASSIVE cost, but you're concerned about the cost difference between -5's/GTX5's/2530's? Be more concerned about the huge dollar head you will need, the OSGiken gearbox, the big multiplate clutch, the expensive FMIC, the big fuel system etc. the difference in turbo purchase price is chump change compared to the rest of that stuff.

Just put normal -5's on there, wind up the boost and be happy. If you must have a bigger number to satisfy whatever it is that made you want those numbers in the first place, get the 60mm versions of the GTX-5's and you'll make mid 4's without too much drama. 63mm's will have more lag, but will add a bit more power of course. Forget 67mm's, it's way too much for your power goal.

Don't take any of that as an attack or as being rude. You want honest advice, there it is. That's all I have to say on this topic