Ive got a wrx td04 powered miata... search my posts and it will show u some of the custom work i had to do.

I think I have decided to go the SR20 turbo route. Im not sure why the price is cheaper for the S15 GT28 than for a GT2560, since it looks like pretty much the same turbo. The GT2560 goes for $800-$900, the S15 GT28 is only $700. I can swing $700 for a brand new BB turbo. Plus its a T25/28 flanged, and I assume the turbine outlet is flanged with the standard GT 5 bolt like all of the other small frame Garrett GT's. Not a huge change in price, but it counts. Could go used for probably 1/2, but I would rather know I have a brand new turbo. Still need to find or make an adaptor for the intake, and for the intercooler piping, since it has the bolt on style, not slip on like I like.

MS comes first, maybe in a few weeks, then turbo, manifold and downpipe, and other little goodies. Intercooler will be ebay. I still may get out of this for under $2000 (not including the MS and injectors). Still cheaper than what Bell wants for pretty much the same thing, minus little brackets, hoses and shields, which I either already have, or can make myself for cheap or free. Just thought Id update. I will make an actual turbo build page as soon as I start getting the first parts.

There are several here that run the WRX turbos.

Flanges are readily available if you are looking to make your combined or SG downpipe or if you need the Subie uppipe flange. If you want to bolt it together and don't want to weld, Begi makes an adapter for t25 mani to Subie turbo for ~$130. It's cheaper to DIY as usual.

Many of those Subaru guys tend to upgrade right out of the box. Mine was a 5k mile takeoff. As soon as the engine was broken in the guy changed out the turbo.
It technically is the TD04L-13T.

And Nester ^^ at turbochargers.com is a dealer for the Mitsu turbos if you wanted a new one. You just missed their big ass sale that ended yesterday.

The Subie flanges can be purchased at weiRtech
They also have the flange for the 1.6/1.8 Miata exhaust manifolds if you are building your own.

if you have patience you can find a near new wrx td04 for about 100 bux. sixshooter is right.

its a great turbo too, can take lots of abuse and will produce some really good torque. only reason I didnt go with my original plan to use one is because I found a killer deal on my hks

Check out The Pipefather's build using the same turbo on this forum.

And for fun check out the "post your spool data here" thread regarding his setup. Sweet.

I've got one. I'm just waiting to get my MegaSquirt.

You people! There you go making me question myself yet again. Thanks for the info, I will ponder over this and do some more research before I make my final choice. Im still leaning for the S15 GT28 just because of the simplicity of it. I used up all of my energy doing the engine for the last 4 months, didnt save much for the turbo half of the build. Id like to just bolt it up and go (I hope). Unless I have a nightmare with BEGi parts fitting like a few people have had lately.

Didn't the 3000gt and the 300zx turbo use td-04's also?

I know the Stealths/3000gt's did. Smaller than WRX ones, though.

You know, with all the new talk about chinachargers, and knowing that WRX td04's are...
a) rebuildable
b) capable of making 200ft/lbs at the wheels before 3k rpm on a 2l
c) capable of around 250 awhp peak
d) dirt cheap

I may actually decide to go with one instead of a GT series. Bang/$ ratio is quite favorable.

The 300zx used garretts

And you guys are right, there should be a ton of stockers floating around, since everyone upgrades to our 16/18/20g turbos.

the 3000gt/Stealth used a td04 9b and runs out of oomph around 155whp on a Miata.

Yeah, too small. The Stealth guys typically step up to 13g/15g's.. on a TD04HL turbine..

The WRX turbo is probably one of the best bang for buck turbos on a miata