Looking To Buy A Gt3076r Turbo Iw

[R33GOD]

looking to buy this turbo as i once again blown another hiflowed turbo.

the power figure im looking for would be about 270-280 rwk.

im not a fan of huge boost and wouldnt want to go past the 16-17 psi mark. What combo would i need in terms of a/r, housings would i need to achieve this.

i have all the supporting mods also. car is a r33 gtst. internally standard also.

when does it make full boost also.

Im also looking into a gt3540 but is it over kill for what im chasing.

can i use factory dump also?

this is my setup so far

internally stock rb25det

pfc

z32afm

hiflowed turbo (now busted)

full 3in exhaust

blitz fmic

600cc injectors

tomei intank fuel pump

cushioned button exedy clutch

future mods

power goal :270rwk minimum

splitfire coil packs

gt3076r?

better bov and which one in plumback??? need advice

need some solid advice.

thanks in advance

[Adriano]

Best off doing a search, as this has been covered quite extensively in a few threads, but for 280rwkw, i think the general consensus was that a .63 or .86 3071 offered better response without any major top end power difference, as your not maxing out the 76.

[mesmerized]

i'm getting a 3076r IW with 0.63 rear tuned at the moment (got similar mods to you), should be ready tuesday. power goal is also 270rwkw. will post results

[R33GOD]

i tried searching but couldnt find what i was looking for.

reason why im looking at the 3076r is not to limit myself in future when i decide to go full rebuild.

just looking for a quick street car for now though have future ambitions for using the car for track

[R33GOD]

i'm getting a 3076r IW with 0.63 rear tuned at the moment (got similar mods to you), should be ready tuesday. power goal is also 270rwkw

fantastic mate. would love to see your results.

what boost level did your tuner say it would do your power goal at?

do u also have stock internals?

[mesmerized]

stock internals and ~ 17psi

[Adriano]

A few people on here have great results with the .63 3076(try the mafia), although most of them find that the exhaust backpressure caused by the .63 limits the power to less than the 76 front can make. IMO .63 3071 for 270-300rwkw or .86 3076 for 300-330rwkw, .86 3582 for 330+

[R33GOD]

A few people on here have great results with the .63 3076(try the mafia), although most of them find that the exhaust backpressure caused by the .63 limits the power to less than the 76 front can make. IMO .63 3071 for 270-300rwkw or .86 3076 for 300-330rwkw, .86 3582 for 330+

reason why i want the 3076r is due to me wanting to run lower boost levels to achieve the power, and not limit myself.

plus ive read the 3076 dosent come on boost as hard. which is what id want.

just after the opinions of this particular turbo only.

[mesmerized]

i was going to get the real 3071r but was told by a few sources the 3076 would more comfortably make 270 and be more streetable. plus i opted for the .63 taking into account i wanted less lag and i wasn't chasing >300rwkw

[Adriano]

What 3076 are you thinking of running exactly

[R33GOD]

garrett gt3076r with .63 rear.

this is why im after advice on its potential.

how many are there?

im getting it from rotomaster. so i guess it would be a genuine 3076r

[Adriano]

how many are there?

AFAIK there are two different garret comp housings and six different ex housings. I would speak to mafia, as thats the same turbo he has. I believe he thought a .86 3071 would offer the same response with a lower level of detonation, and slightly lower peak power potential(he is making 314rwkw 18 psi), although if you are considering more power down the track, a .63 3076r can be easily upgraded with only an exhaust housing when need be.

[Dale FZ1]

Check this thread:

http://www.skylinesaustralia.com/forums/Ga...io-t207931.html

The on-road results for the 0.63 seem pretty good, but there may be some issues with boost control by the sounds of things. They certainly seem to give a big whack of early response, and depending on needs and preferences that may give more torque, earlier, than some people want. Definitely ask Mafia and BHDave what is their general view on this characteristic.

The consensus amongst those of us with a turbine A/R of 0.82 (or 0.87 HKS version) is of progressive, driveable response. Haven't heard a complaint yet. At 270kW it might be a technical difference between 3071 and 3076 rather than something that you can feel or measure, if response is the goal.

As always, it depends on the use of the vehicle, and skill/preference of the driver.

Edited April 25, 2008 by Dale FZ1

[BHDave]

Just specify 2 things up front. You want the waste gate ported as large as possible and you want an actuator rated as close as possible to your expected minimum boost. Do not accept a softer actuator and expect to just wind preload in. You will compromise peak flow out of the waste gate and as it's performance is already marginal you will introduce boost creep issues.

I don't think a 3071 will do much more than a genuine 280rwkw, the compressor just doesn't have the balls. So yeah, the 3076 is the turbo to get if you want 270rwkw with the potential for low to mid 300s.

As far as streetabilty is concerned, the 3071 small compressor, big turbine and small turbine housing gives a very early boost threshold. You end up with a reasonably linear curve and avoid the rapid power increase at 3500-4000rpm you'd have with a bigger compressor and the same rear end. I'd say it's very streetable and perfect for the lazy driver (like me) provided you don't expect to crack the triple ton.

[R33GOD]

im not used to anything big as this will be my first worthwhile upgrade.

im over hiflows.

[Adriano]

Whichever way you go mate, just make sure you find out whats causing all the dead highflows first, id hate to see a thread in a few months "why did my gt3076 blow up"

[R33GOD]

il get an oil pressure test done first then go from there. i actually think the reasons for my hiflows dying is due to modifying the stock bov. wayyy to much compressor surge even on light throttle. comp wheel blew outwards towards the afm...

for the time being im going to run a standard turbo so i can just get my car on the road and run 11 psi or so. well see how that one goes for now

[Dale FZ1]

Moving to a GT30 based turbo will be something that should make you smile each time you drive it.

The highflows weren't from Slide were they? There was a few reported failures that seemed related to quality control in assembly/manufacture, rather than anything done/not done on the owner's part after they were fitted.

Main point being, if you are going GT30, do it now rather than spending the time refitting a stocker.

im not used to anything big as this will be my first worthwhile upgrade.

im over hiflows.

[R33GOD]

Moving to a GT30 based turbo will be something that should make you smile each time you drive it.

The highflows weren't from Slide were they? There was a few reported failures that seemed related to quality control in assembly/manufacture, rather than anything done/not done on the owner's part after they were fitted.

Main point being, if you are going GT30, do it now rather than spending the time refitting a stocker.

i have to wait a couple months til i get a gt30 turbo. need the car on the road quickly. stock turbo is just temporary

[eddieeeee-ro]

we just finished putting on a gcg high flow on a mates r33, got it tuned @ maztech, pulled 263 rwkw @ 13.5 pounds spiked to 15psi we got the sheet

some high flows are still good! ive got a gcg on mine and waiting for a retune next week @ racepace.