Archive for September 27th, 2007

HKS SSQV Recirculated Blow Off Valve (BOV) Theory and Install

Thursday, September 27th, 2007 Posted in Tech (CA18DET 240SX, S13) | No Comments »

BOV Theory Installing the SSQV BOV Theory The function of a blow off valve (BOV) is to reduce pressure waves that result when the throttle plate of your engine is suddenly closed. For example, when shifting gears the turbo is still pressurizing ...