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Seraphim38 · 11-26-2012, 02:30 PM

- I can't tell you about the compressor housing choices

- I can say that I went from a .64AR to the external wastegate .73AR housing and I definitely preferred the .64AR housing for its better responsiveness

- For hardware, my advice would be not to cheap out. Go to FRSport and order new stainless studs for the turbo manifold, use NORD lock washers and copper lock nuts. It's way sucky to install a brand new turbo only to have it fall off or leak a day later. And yes, it happens more than people would admit.

- Make sure you get decent turbo feed lines for it, and the right oil restrictor with the turbo. The Circuit Sports lines were fine for me.

- For wastegate spring pressure, you cannot set your boost pressure below your wastegate. So if you want the option of running 7 psi of boost you can't get a wastegate that is 14psi. You might find that the HKS external adjustable wastegate actuator is beneficial. I personally have never used one so I can't offer personal impressions. Personally I used to have a 7 psi wastegate which was helpful one day when I went to do an autocross driving school in the rain (even at 7 psi and with big track tires on the back my car still has traction issues). Now that I have a 15 psi wastegate spring I can't ever turn it down, but that's ok because I don't ever try anymore. I run it at around 19 psi daily anyway.

11-26-2012, 02:30 PM	#8
Seraphim38 Zilvia Addict Join Date: Oct 2010 Location: Washington Posts: 810 Trader Rating: (6) Feedback Score: 6 reviews	- I can't tell you about the compressor housing choices - I can say that I went from a .64AR to the external wastegate .73AR housing and I definitely preferred the .64AR housing for its better responsiveness - For hardware, my advice would be not to cheap out. Go to FRSport and order new stainless studs for the turbo manifold, use NORD lock washers and copper lock nuts. It's way sucky to install a brand new turbo only to have it fall off or leak a day later. And yes, it happens more than people would admit. - Make sure you get decent turbo feed lines for it, and the right oil restrictor with the turbo. The Circuit Sports lines were fine for me. - For wastegate spring pressure, you cannot set your boost pressure below your wastegate. So if you want the option of running 7 psi of boost you can't get a wastegate that is 14psi. You might find that the HKS external adjustable wastegate actuator is beneficial. I personally have never used one so I can't offer personal impressions. Personally I used to have a 7 psi wastegate which was helpful one day when I went to do an autocross driving school in the rain (even at 7 psi and with big track tires on the back my car still has traction issues). Now that I have a 15 psi wastegate spring I can't ever turn it down, but that's ok because I don't ever try anymore. I run it at around 19 psi daily anyway.