Turbo replacement + parts

[MRZOOM]

Hi fellow mps owners,

my turbo has decided to start to smoke and im looking to replace it.
I've been searching information on here and both on the yank forums but im so confused as to what parts i need.
I've decided to go for a gt2871r, im not crazy about massive power gains and believe this is more than enough. Yanks though seem to be obsessed with the gt30+ turbos.

my question is besides the turbo and inlet pipe what other things do i need?

current mods on my vehicle are
KMD fuel pump internals
mazdaspeed CAI
CPE full turbo back exhaust
horse power factory ecu flash

help greatly appreciated and please don't confuse me more than i already am.

[SarcasticOne]

http://www.ozmpsclub.com/forum/showthread.php?t=15135

[chef]

BNR s1 easily available in Australia and straight bolt on its a good replacement for the K04 , a retune is a must from HPF

[rogwick]

You'll need a HPFP, which you seem to have, the rest of the mods are great. You'll have to adjust your tune (if possible) or maybe look into COBB AP or something.
Yep as you said you'll need a TIP. I think the GT2871R runs a 4" inlet so maybe the CP-E TIP.
MAF and injectors should be fine. You may want to look into another MAF sensor as I've heard above 19psi the stock could be glitchy. You want accurate readings. But leave it stock for the moment if you like.

As far as the turbo goes, I think you can use factory lines etc for installation but don't take my word on it. Might need to see how the heat shielding needs to be modified (if at all)
You also might want a new set of front tyres ;-)

[MRZOOM]

ok thats where im getting confused some say keep the stock MAF or upgrade to a bigger MAF housing. where do i get a bigger MAF housing to replace the mazdaspeed CAI one?
Also is the wastegate on the gt2871r enough, i've been reading about getting an external one cause the one on it holds up to 14psi..
im so confused with this whole thing. As you can tell im a turbo noob oh and also something about a boost pill. i just want clarification on these things.
im putting out 187kw atw and was hoping that with the new turbo to at least hit 200kw atw im sure it could go further than that but i dont want to be running my engine to the max, just want enough power to put a grin on my face and not a face of fear when i drive the damn thing.
also running yokohama neovas advans so no need for two new front tyres just yet

[Devil MPS]

If your not big on power get a BNR S1. Failing that, go the S3. If your not going bigger than a 28 than not much needs to be changed.
MAF housing doesn't really need to be changed, any aftermarket intake will do the job and upgrading isn't necessary. But it's a good idea to upgrade your MAP sensor to a 3 bar and a 3 port EBCS. Again not 'needed' just a good idea to do.
Decide which size you want first and what you want out of the car.

[MRZOOM]

If your not big on power get a BNR S1. Failing that, go the S3. If your not going bigger than a 28 than not much needs to be changed.
MAF housing doesn't really need to be changed, any aftermarket intake will do the job and upgrading isn't necessary. But it's a good idea to upgrade your MAP sensor to a 3 bar and a 3 port EBCS. Again not 'needed' just a good idea to do.
Decide which size you want first and what you want out of the car.

so where does the MAP sensor go and where can i get the upgraded part?
GT28 would do the job i don't want the car to run like a snail but don't want to sit at the lights just spinning the wheels.

parts:
GT2871
3" inlet pipe
MAP sensor upgrade
new tune
ebc

no need to get a better wastegate?

[Devil MPS]

The internal gate will be enough, they won't match a gate that isn't suited to the turbo. Which brand are you looking at?. Unless your looking at the GTX series 28 email BNR about the stage 3. Not as expensive as you may think and it's the path I'm going down in a couple weeks.
Map sensor measures your manifold air pressure, sensor that sits on the turbo manifold and a plug and play unit. Bosch does one for $30us, @rogwick has the link that I sent him or just google it.

[SarcasticOne]

http://www.ozmpsclub.com/forum/showthread.php?t=15154 -- info on map and maf sensors

Map is located here on the drivers side of intake Mani:

Blue thing is map sensor

[MRZOOM]

going the atp path i cbf going bsr and having to send in my core, just want a fast swap out.
the other thing that concerns me is the connections, although atp says its all bolt on i've have read thats not the case.
i'd like braided lines to go on it and have no clue where i can get a set of lines.
so just type in bosch MAP sensor and find the 3 bar?

things are starting to make sense now

So parts needed
GT2871R
3" inlet pipe
3bar MAP
3" MAF housing
EBC would grimmspeed be a good one?
And new tune from HPF..

????

[2XS]

If you want a simple swap out, BNR S1 or S2.
S3 requires inlet mods.
Remember, the BNR can reuse your DP and inlets.
You can pay extra and have the core supplied via BNR and then theere is no need for yours to be sent back.

Going to Garret will probably require a new manifold/flange.
Along with a host of other stuff.

The stock turbo will see you get 200Kw@wheels.

Minimum parts you'll need.

BNR setup S1/2.
-Turbo

BNR setup S3.
-Turbo
-3" inlet
-retune

ATP setup.
-these usually come as a kit with all required parts.

Garret setup -upto GT28 - usually custom.
-Turbo
-manifold
-custom inlet
-custom DP
-retune

Going GT30 or larger will require a lot more mods.

There are more mods that can be done for each, but, are not required, just suggested.
I may have missed some finer details, but, this is the majority of details I can provide.

[Bakis]

@MRZOOM, GS or Cobb EBC are both good, easily plug and play for us.

I've got a Hi-Flowed k04 sitting at home and i'm currently on 190fwkw at HPF i was hoping to hit 210-220fwkw reliably with approx 20psi when it's all installed + Full DP...

Will you be upgrading your intercooler?

James

[MRZOOM]

No cooler update, will be doing that later but for now I need the turbo.
It's smoking when I sit I'm traffic
I'd like the ATP set up
Just unsure if I need to upgrade to a bigger MAF housing.
If I do have to, where do I find that housing to replace the mazdaspeed one?

[Bakis]

No cooler update, will be doing that later but for now I need the turbo.
It's smoking when I sit I'm traffic
I'd like the ATP set up
Just unsure if I need to upgrade to a bigger MAF housing.
If I do have to, where do I find that housing to replace the mazdaspeed one?

Not sure either if the larger MAF Housing is needed if your currently running a stock one on your CAI, i know a lot more air will be flowing through the intake but maybe it will still be reading accurately enough for HPF to tune it 100%.

That's what i'm banking on (running a slightly milder turbo thou).

[MRZOOM]

Not sure either if the larger MAF Housing is needed if your currently running a stock one on your CAI, i know a lot more air will be flowing through the intake but maybe it will still be reading accurately enough for HPF to tune it 100%.

That's what i'm banking on (running a slightly milder turbo thou).

I'm sticking to the GT2871R just waiting on GCG to get back at me with price and everything else to make it bolt on.
Oh and I need a new clutch too
So in the end I'll be getting an ATP, boost controller, inlet pipe and a new tune.

[SarcasticOne]

Not sure either if the larger MAF Housing is needed if your currently running a stock one on your CAI, i know a lot more air will be flowing through the intake but maybe it will still be reading accurately enough for HPF to tune it 100%.

That's what i'm banking on (running a slightly milder turbo thou).

In colder months you can easily hit the limits of a stock sized intake when running a larger turbo, even a BNR S1 (or equivalent). Have seen some k04's hit required air flow for "MAF cut" in the states when temps get down to 4-5deg C

Sent from my Galaxy Nexus using Tapatalk 2

[2XS]

I never reached the limits of the stock MAF with mine.
28/76r @ 24psi.
I even had a 3" one waiting to be fitted, when it was tuned, just in case.

[SarcasticOne]

I never reached the limits of the stock MAF with mine.
28/76r @ 24psi.
I even had a 3" one waiting to be fitted, when it was tuned, just in case.

Brisbane never really gets that cold
I'm talking low single digits...
Could possibly get away with it in Brisbane, but my 3071 flows more air at 23psi than the stock sized maf can read, even on 20-25 deg days

MAF cut on stock intake is about 340g/s of air...

[Rayd]

I always hit MAF cut on my stock MAF with the 3071 as soon as temps dropped below 17 degrees it was a guarantee

[2XS]

Brisbane never really gets that cold
I'm talking low single digits...
Could possibly get away with it in Brisbane, but my 3071 flows more air at 23psi than the stock sized maf can read, even on 20-25 deg days

MAF cut on stock intake is about 340g/s of air...

I always hit MAF cut on my stock MAF with the 3071 as soon as temps dropped below 17 degrees it was a guarantee

But you guys are running GT30 turbos.