New Garrett GTX2867r

[240sxfan6882]

Originally Posted by huffandpuff00

@240sxfan6882
I don't know if you saw that atp makes a flange that fits on the t25 plus housing and excepts 3" exhaust pipe. Because we are still bottom mount i know theres not to much room between the turbo and firewall, so if the 2.5 to 3" flange adapter doesn't work out, check these out.

Yeah I saw that, thanks!
The adapter fits just fine, ill just have to swap the 3" v-band flange to another style that I got from Burnsstainless.com. I don't know if Ill be able to get on this project this year, there's a lot of stuff that needs money right now, lol.

[Lrn2Go]

People got fussy about me asking this out of this thread... so I suppose I'll just stick to hoping you all can help me out. Pardon my noob-ness... but I've been looking all around and struggling with finding the answers I need. This is my first turbo car, and I've just been rocking the stock t25 thus far. Now I want to upgrade while the winter months set in. Here's my questions.

This may sound dumb... but I know what I want, I just don't know what kind of pieces I need! I searched all the threads I could find, read all 16 pages of this thread, and this may be something so simple people just assume I should know or something. But help a guy out!

1. I want a gtx2867R turbo. I'm not interested in advice for any other turbos. All of my questions pertain to this specific turbo. My power goals (for right now) are around 300hp at the wheels, and I've got all the supporting mods I need. Yes, I understand this is not really "pushing" this turbo. Again, not what I'm concerned about. I do not want to go with an external wastegate at this time, and yes, I know the pluses and minuses of choosing this option.

   • This will be going on an s13 blacktop SR20DET.

   • Are there different Compressor housing options? (like the GT28 series with 2 bolt in, 3 bolt out) Or does it come only one way?

   • I hear it comes with an "anti-surge machined" compressor housing. Does this still apply if you get (if available) one of the different compressor housings?

2. I do not have a turbine housing. (I've only got my stock T25)

   • From what I understand, I can usually order one of these along with the turbo for around $200. I'd want the .64 a/r off the gt2871r. I think this is a popular option (from at least what it appears so in this thread)?

   • I want my turbine housing to be the t25 style that will bolt directly to my current down pipe (aka, any t25/t28 style). If I'm correct, my selection above of the gt2871r's housing will give me exactly this.

3. Do I need any other bits and pieces to attach the turbine housing to the compressor housing? Clamps, clips, screws, fittings, etc? If so... what and where do I get them?
4. I believe I need some kind of wastegate bracket. Is this true? Can I re-use my t25's? If I need a new one, where do I get it?
5. Keeping in mind I want to stay internally waste-gated... How do I know what wastegate actuator spring I need and should get? My power goals are (as I said) a simple 300-ish HP to the wheels. I have all the supporting mods I need, including a boost controller, fuel, standalone, etc... but I just don't know what spring I need. 7lbs seems to be common... but I also see options for 11 lbs and 14 lbs. I'm now confused. What actuator should I get? HKS? Some other brand?

Cliffnotes:
I want to know what all I need for a completely assembled GTX2867r that's as close to "bolt in" as possible into a black-top s13 sr20det.


Thanks for the help ahead of time.

[Seraphim38]

I replied to your other thread, fyi, for whatever it's worth.

[Lrn2Go]

Originally Posted by Seraphim38

I replied to your other thread, fyi, for whatever it's worth.

Thanks, saw that. Sorry it's in 2 places. I asked the mods to close the other one and I'll just play in this sandbox. People might be more friendly here anyway.

EDIT: Still curious about most all those questions. Especially on the "what fittings/connectors/claps I might need to attach the turbine to the compressor section"... and after doing some more research (though I still need to call ATP), it looks like it's got a "standard" compressor housing (even on Greddy's site) which I hear is supposed to have the "anti surge machining", but ATP offers the GT28 style with the 2 bolt in and 3 bolt out... but no word yet on if it's also got this "anti surge" stuff... or if it's just stuffed into a "normal" gt28 housing?

[usdm180sx]

Hmmm based on what numbers have been posted I think I will stick with my HKS GT-RS for now. At 16lbs it's putting out ~350whp on a street tune. After we throw it on the dyno it should put out 380whp. No benefit to switching at this time.

[e1_griego]

Just buy the .64 turbine. If you already have an upgraded outlet, then great -- if not, you should probably get one. It will bolt up just fine.

AtP can answer the housing thing -- I'm running the 3" inlet. It's easy enough to built an intake, and you won't really want to run the stock rubber piece anyway.


You clearly need to do more research. Look at a 2871 setup and see what you need -- it's the same for this. Buy new hardware and gaskets from frsport or something. 7 layer s15 exhaust manifold gasket, copper lock nuts, locking tabs, multi layer intlet gasket, new 5 bolt gasket. might even be easier to just find an extra stock manifold and put everything together. I'd also recommend stainless braided lines as it makes installation easier.

For 300whp, I think an s15 turbo would suit you better, fwiw.

edit: USDM, looks like you're making the same 340/300 on a mustang like I am, but at 17psi versus 15psi, and looks like a bit later spool. Prob not worth the upgrade.

[huffandpuff00]

2867 seem over kill for 300whp

[unijabnx2000]

I cant wait to upgrade from my 2860rs to the x2867r

[codyace]

Just as a small update, I can assuredly say that after a few track events that the GTX2867 is a wonderful thing. I'm faster EVERYWHERE and seemingly never out of power even when lugging a gear, which I'd sometimes find myself in at times (spots where being a gear lower would induce too much wheelspin).

I'm *still* trying to find a way back onto the old dyno for a real comparison, but as before, to make mid 390's at 19 psi on a MUSTANG dyno, while maxing maf/injectors, was prove enough to me that it's making a good 20-25 more whp (figure 420-430) whp on a dynojet) up top than my old setup. It just plain runs like a bad mothertrucker, and I'm content with that

[Joe1989]

Originally Posted by boostfreak27

Anyone know what exhust housing this is?

[unijabnx2000]

kinda looks like Turbine Housing Garrett GT28 Style T25 Modified to V-Banded Entry : atpturbo.com

[S14DB]

Originally Posted by unijabnx2000

kinda looks like Turbine Housing Garrett GT28 Style T25 Modified to V-Banded Entry : atpturbo.com

No, It's this:
Special Turbine Housing T25-EWG-44 : atpturbo.com

[Seraphim38]

I have that turbine housing, and for your information it spools up FAR slower than my old .64 AR internal wastegate housing.

[huffandpuff00]

Originally Posted by Joe1989

Anyone know what exhust housing this is?

Ill sell you mine...

[801nismo104]

So is this capable of around 430hp? is it worth going with the 0.86 housing if im looking to get in the 400hp range or would the smaller 0.64 housing be better? Theres not much info out there on this turbo. Just want to hear peoples opinions

[Croustibat]

It does around 430HP on a friends CA18det too (around 1.8bar boost, e85, 9000rpm head). Goes out of puff by 8000-8500rpm but it may be related to his cams too. Still he was making 500+HP with the same engine and a bigger turbo before, so not really sure the cams are to blame...

[unijabnx2000]

theres a performance shop i saw post on facebook get right at 500whp with it on race fuel

[Kingtal0n]

Originally Posted by unijabnx2000

theres a performance shop i saw post on facebook get right at 500whp with it on race fuel

screen shot or it didnt happen

[unijabnx2000]

https://www.facebook.com/TurboLife/timeline/2012/7

the comments on shannon bakers post

[Kingtal0n]

can you post the compressor map for this turbo? When discussing any turbocharger in any car related forum you always need to post the compressor map at the very top

[Kingtal0n]

Originally Posted by Walperstyle

This effieiency of these turbos is amazing. Way less chance of compressor surge. I wish I would have purchased one of these, but they are expensive.

And it is posted at the very top.

is this the turbo? Because this one says 600-650 horsepower and you are acting like 500 is something

OK I am still reading. This is not the right one, I see. Can somebody update the compressor map for the turbocharger in question

[unijabnx2000]

thats a GTX30

[Croustibat]

Originally Posted by unijabnx2000

theres a performance shop i saw post on facebook get right at 500whp with it on race fuel

Yeah. I also see a lot of people telling they got 400++ HP, and then say that the 430HP S13 i know is making at least 100HP more than their.

BTW race fuel is just high octane fuel. e85 is 104 octane. Not sure race fuels go that high... maybe methanol, but that is another story.

500WHP with a gt2867r ? I dont believe it at all, except maybe if it was using nitrous.

[Seraphim38]

race fuel goes up to 116 octane. More interesting than the octane is the level of oxygenation: the highly oxegenated stuff is $20 +/- per gallon and can't be left in the vehicle because it will eat through metal.

I have used mostly VP and Sunoco race fuels, to race motorcycles.

[unijabnx2000]

i already posted a link to where garrett on their facebook page said how how power they were making at 28psi

go to their fanpage: https://www.facebook.com/TurboLife
then sort by posts by others,
click 2012,
then july
then read the comments under shannon bakers post

[unijabnx2000]

Like i said.... 493WHP with C16 race fuel @ 28psi

[unijabnx2000]

Think I found the dyno sheet of the car, they said 26psi instead of 28psi like Garrett said on their page.

[cotbu]

I've seen that, and it started a shit storm! All because i said "it was misleading to the majority of user". "That turbo on race gas is like comparing any turbo on pump to any turbo on e85". They said what do you mean? I said, "it has a shit ton of timing, that's why it can make high power at low boost. Switch to pump gas and compare it, or tune a different turbo on race fuel". That memo wasn't about that. "I know!"

quoted myself

[Croustibat]

Timing makes power to a certain point ... the ideal timing is when the whole fuel is burned at something like 15° after the piston is at its top. Fuel pump dont allow that, but E85 does. You cant get more power unless you get more potential power in the fuel, which i guess C16 is all about.

From the compressor map, 2bar is already pushing it a bit.


It wont run reliably for a very long time on a 2.1L engine... but i guess people using corrosive race fuel dont really care about longevity.


Still, 500WHP@ 2bar ? Even on C16 i find it hard to believe. Unless the engine has been specced to run a very high compression ratio too ... It looks more like what some wheelspin on the dyno would produce. got a dyno result of more than 700HP on that little CA when we were expecting to be in the 500hp range ... 3 heavy people in the trunk and some special adhesive spray on the rollers fixed that.

[cotbu]

On a dynopack, wheel spin is taken out of the equation.