ORIGINAL: anko_kun

what dose runing the mbc that way do to help me ooo and i got my down pipe and o2 hosing on wow talk about a differnce

Originally Posted by Reasons not to use the BOV line for your MBC [/align] 1. BOV line was previously thought to be better and more accurate because it's the pressure the engine sees when in reality it doesn't matter because boost gauge is already measuring manifold pressure regardless where you reference your MBC.

2. Long route vs short route, increased chance of boost spike.

3. Turbo protection. In a case of developed boost leaks in your intake tract, tapping BOV line will result in turbo spinning out of control while boost gauge till maintains full boost. Where as a compressor source will open wategate sooner while registering pressure drop on your boost gauge.

4. This is the most important one. Tapping your BOV line will result in an opened BOV under WOT because of pressure bleed through the MBC's wastegate pressure relief hole. The situation gets worse when using a bleeder type like the TurboXS units because it's also a vacuum leak which can lead to idle surge as well as compressor surge.[/align]