I Have An Evo 7 ,i Run 23 Psi On Stock Turbo Although Also I Was Using The Stock Bov.now It Seems When I Run My Car The Rev Goes Down And Also The Speed.but When I Stop My Car For A While And I Run It Again For 30 Minutes The Problem Start Again.i Really Dont Now The Problem But Some Peolpe Say Are The Bov Others Sparkplug And Other Flujometro(i Dont Know That Word In English But It Is The Sensor Between The Airfilter And The Turbo ).thanks I Will Really Appreciate Your Help

 

Please, explain again. Anyway be carefull if you changed the air/fuel ratio by yourself and check if your stock fuel pump is enough for the power increase.

 

The Problem Is When I Ride My Car Or More The 30 Minutes The Revs Go Downand The Car Seems The The Engine Will Get Off,is Like The Car Was Too Rich

 

Are you getting a check engine light?

 

No But My Maf Come Be The Problem?does The Service Computer On A Dealer Read The Code If The Maf Is Malfuntioning

 

Go to a Mitsubishi dealer and see if there is something wrong. I recommend you to leave your car with a tunner expert for a proper engine tunning.

 

u sure ur not pulling timing?