Great results, it is always awesome to see some positive delta in hi-po parts!!
As anyone who has studied the N54 turbocharger outlet tract may understand, the compressor housing outlet ID is actually quite small (~1") whereas the OE outlet tubing is quite a bit larger (~1.5"). For this reason BMW engineers designed a transitional adapter (which is integrated into the OE outlet assembly) to provide a "port matching taper" to transition the smaller ID (at the compressor housing outlet) to the larger ID (at the outlet tubing entrance)- to effectively increase airflow by reducing turbulence from the otherwise gaping mismatch of port sizing.
We have noticed on this aftermarket part the transitional adapter has been removed, which leads to a couple questions:
1) Any idea the impact of the outlet assembly flow increase that can be accredited to the removal of these transitional adapters?
2) Any idea the impact of removing the OE engineered transitional adapter from this connection from a functional system/turbulence perspective?
Appreciate the time.
Rob
As anyone who has studied the N54 turbocharger outlet tract may understand, the compressor housing outlet ID is actually quite small (~1") whereas the OE outlet tubing is quite a bit larger (~1.5"). For this reason BMW engineers designed a transitional adapter (which is integrated into the OE outlet assembly) to provide a "port matching taper" to transition the smaller ID (at the compressor housing outlet) to the larger ID (at the outlet tubing entrance)- to effectively increase airflow by reducing turbulence from the otherwise gaping mismatch of port sizing.
We have noticed on this aftermarket part the transitional adapter has been removed, which leads to a couple questions:
1) Any idea the impact of the outlet assembly flow increase that can be accredited to the removal of these transitional adapters?
2) Any idea the impact of removing the OE engineered transitional adapter from this connection from a functional system/turbulence perspective?
Appreciate the time.
Rob