got everything sorted out today. scanned the codes and both o2 sensor codes came up. i swapped the wires around and it still came up. i guess the thing is fried. anyways, it has a greddy BOV and the car is slow! feels maybe a tiny tiny bit faster than a s2k with exhaust/intake. basically, i believe the blow off valve is leaking. today i changed: exhaust manifold gasket, turbo compressor inlet and outlet gasket, rebuilt the turbo with brand new CHRA, and fixed an exhaust leak at the test pipe. it seems to build boost but around 5,500rpm it just goes away and falls flat on its face. i cant figure out anywhere else that its leaking. any input? i wish i had my old tial blow off valve!

 

The greddy kit is usually quick spooling. 5500 is super late in the rev range to be building boost. Don't know much about the emanage but I'd look at getting an AEM EMS v2 if you dont mind spending the extra money or a v1 and getting a proper tune

 

So, the codes are gone? I'd fix that first.

Then do a boost leak test. Search on how to make a tester.

 

it builds boost way before 5500. but it seems like the bov leaks around 5500 because it stops making power after 5500

 

No. it stops making power because the turbo is very small and runs out at higher rpm.

The greddy kit is designed that way to make the car have more Tq at lower rpm. If you want high rpm HP you would need a much larger turbo and a kit designed for that from the get go. The greddy kit is simply not designed for high rpm power.

 

Uh uo, I smell another RAIN H8R situation approaching, lol.

The turbo used in the Greddy kit is pretty tiny and the kit in general is known to be the very "entry-level" turbo kit for our cars. You may have a boost leak somewhere and I think its still worth checking, but as GMK said the kit is NOT going to pull hard to rev limit. You will feel the power fall off in the upper RPMs, just by design of the kit.

 

you're saying it gives up at 5,500rpm? I can't imagine it being that low?

 

Yeah... if you look at the charts in RAIN H8R's thread you'll see that his torque pretty much plateaued by 4.5k RPM. Not to compare your setup to his, but just as an example.

 

wow, I guess you're right. I remember my td05 20G on my STI basically stopped making power around 6k

 

for contrast in how kits make power. My turbo setup uses a large 6265 turbo with a 100AR with a fullblown sidewinder manifold. I start making boost around 4-4500 rpm, its laggy, but it pulls like crazy all the way to 9500rpm. It also makes 511whp. Its also a MUCH more expensive kit and requires lots of supporting mods.

Each kit has its benefits and drawbacks, The Greddy kit would destroy my car in an autoX type setting or just for daily fun factor but mine would be faster on a road course (assuming I could even keep the underhood temps in check HA!)