Which GT2871?

There are 3 trim options for the compressor, and at least 2 turbines and 2 a/rs:

http://www.turbobygarrett.com/turbob...rs.html#medium

 

You can usually tell from the compressor housing. There is only 1 turbine option and 2 compressor options. Not sure where you see different turbines in there...

 

how funny..I was just searching for that too. Jason, where are you going to get your GT2871R from?

- jason

 

52trim, T25 .86 A/R.

 

I found this from Sav's post.
https://www.miataturbo.net/showpost....7&postcount=91

 

Scratch that, there are 3 wheels. Still only seeing 1 turbine though...

 

Neo, I think you can get it with a T3 housing in .63 or .82. Too lazy to actually check, though.

 

Your turbine housing is too big. I have a .86 and it hits target boost at 3200rpm. I should have gone with a 2554.

 

Big A/R is magical.
i also have 0.86 and it works well. boost hits like a wall

 

post pics of your **** or I'll ban you.

 

Haha...naw dude, you need an IHI in your life.

Turbine so small I couldn't stick my peter in it.

 

correct. BRGRacer has a .48 A/R T3 housing on his 2871.

 

Still the same turbine though.... So I'm win.

 

infinitesimally small.

 

You should have gone with VVT. watch that 3200 rpm number get smaller when he gets his isht on a dyno.

this statement is kinda funny.

raise your hand if you think "boost hits like a wall" is a good thing...

 

I'd love to see a test of how comparable the .48 T3 is to the .64 T25, and the .63 T3 to the .86 T25.

 

Hand raised. It just doesn't make sense

 

I think that's the exact term I used when I found out my boost protection was set at 1.5psi after the install...

 

sorry. ive been saying that for a while.

it comes on like its just nothing, and then your at peak boost. (inverse of hitting a wall)


Hustler, your pic is here.



Its the setup that Splitime had for sale... i dont have any better pics of my manifold off hand... i have dialup at the shop :(


Oh, i also have just got it running and it needs alot of work to be tidy.

 

My $0.02: Barn Doors FTW.