Hi!
I've got a 6766 precision turbo, and TiAL 44mm with screamer pipe, so, my tuner told me his experience with his EVO 8 engine mitsubishi colt with a GT35, he test both WG positions, open to the atmosphere, and recirc, and when he puts the car into the Dyno, he lost 20nm of torque with the open downpipe, and holds the peak power at 553AWHP, so he runs at low boost compared to our supras, Im going to run the car at 23-25 PSI, I have a 3" DP/MP combo, so If I recirc the WG probably the exhaust will have an increase of backpressure, and more restriction under my thinking and knowledge.
Anybody test it or have experiences here with both WG positions? I love the screamer sound but I want the option with the best performance results for the car.