Well I hit my first goal of getting the car to run a 13 second quartermile and did it with my 15g used turbo. I've decided not stop there and push it a bit harder into the low 13's or 12s for next year.
In the process of trying to get my 20T to boost past 20psi I over spun the turbo because of weak CBV Spring. I took the turbine wheel and compressor wheel to Diesel injection service for balance. I ended up finding a place out in Oregon where it seems all the Volvo performance shops exist who had a TD04HL Bearing housing already machined out for a 58mm compressor wheel. Standard housings can only accept a 56mm wheel.
20T turbo
Standard Bearing Housing
20T Bearing Housing
I'll put it back together this week. I'm not planning on installing it for a bit because the car is quite fun the way it sits for now.
My wish list for next year..
I will need to replace the GTP 36 lb injectors with larger 52lb injectors, put lighter front wheels on, drop some weight in the car and possibly adding a locker next year. I may also add a 3" cutout before the cat to free up some horsepower.
What I have on order
17psi Garrett Wastegate to replace the 4psi Wastegate currently being used. That should get rid of the turbine pressure opening the puck too soon.
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