Tial 50Mm Bov Spring Chart. The springs are the same and interchangeable between bv50 and q bov but they have different pressures in the different gates. Part number engine vacuum reading ** use spring color;

The springs are the same and interchangeable between bv50 and q bov but they have different pressures in the different gates. Boost pressures are only an approximation based on. Part number engine vacuum reading ** use spring color;