bnrs4

I am running a v1 BNRS4, with a Corksport ebcs, and Tial 44mm external wastegate, it's setup as an interrupt style, and upon visual inspection the lines seem to be properly routed. I've pressure tested it recently and it held 20psi so I don't think it's an boost leak. I'm tuning with Will and...

Ever since I got this turbo (BNRS4) from a buddy and installed it, I've been getting boost creep all the way to 22 psi on spring pressure. The internal wastegate is opening, but not enough to vent the boost built. By swapping out a new one, I've already verified that the wastegate actuator isn't...

Hey all. I recently picked up this bnr s4 unit online from a guy. Upon arrival, I noticed that there were scratches in the intake side around the intake turbine. At first, I freaked out thinking I got snowed. There was also a little side to side shaft play, nothing too serious but with nothing...

Hi everyone! Some of you have wondered who I am and why I don't have a thread about my mazdaspeed. The answer is simple, laziness. I'd rather be wrenching than typing, so wrenching always wins my time. However today I'm going to try... again... In June 2012 I bought a brand new 2012...