Subaru TD05-16g

Just because something COULD be done does not mean it SHOULD be done. Better off getting a decent 4-2-1 header, ditching the y7 intake manifold for a b7, z6, or y8, and getting a tuning solution first. Then go from there, maybe pick up a long block from somewhere and build it for boost. Then put in about 60 hours of research on turbo options and decide how much and where you want the power.

I would look into the "disco potato" it suits the D well, it can be dialed down or up to work with power goals of 250-380whp, has a few turbine housing options that allow tuning of spool characteristics, and is pretty readily available.

Soul Engineering said:

Actually, we can now break the 400whp barrier with the modded Disco Potato. And she still does really well at the 200whp level as well. Spool at 2k, 5 psi by 2300, full boost by 2800 with a DOHC ZC. Can't wait to see how it does on a Single cam and on a B16. Perfect turbo for 1.6 liters

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Was waiting for you to chime in 😃 ive personally never seen one on a decently built D making less than 250, wasn't sure what the new wheels would bump them up to peak wise, was scared to over sell it, lol.

Poor tires never knew what hit them

The y8 injectors are fine for NA, going to need an upgrade come boost time

Boost/power output is relative to turbo efficiency and engine volumetric efficiency, 5 psi on a certain turbo/engine setup could net 170whp, while 5 psi on the same engine with a different cam and turbo might make 215 at 5 psi. and yeah the y8 injectors after a cleaning will handle the 170 with a good tuner, but that 85% duty cycle will shorten their life span, 80 is a decent price for the manifold injectors and rail, and the y8 injectors are an upgrade to the y7s, so count it a win but plan on upgrading injectors when it gets boosted. 😃

Yes, and idle Is going to be iffy until you have a tuning solution as well, but if iat, ect, map and o2 are in good shape it should still run ok ish.