Product Summary

Universal Fit, 15-90 Fuel Pressure Rating (psi)

    Key Specs

    MFG. Part #2938
    Regulator StyleReturn

    Need To Know

    This Product Will Ship Free

    Shipping Policies & FAQs

    Quick and Easy Returns

    Return Policy

    MSD 2938 Details

    The Atomic Adjustable Regulator is configured for a single -6AN inlet, and dual -6AN outlets (for regulator-to-tank line routing flexibility). The maximum recommended flow rate is 500 liters/hour (2.2 GPM). The vacuum/boost compensation ratio is 1:1.

    The recommended operating range is 15-90 psig (pounds per square inch gauge).

    • Flows 2.2 GPM
    • -6AN inlet and dual -6AN outlets
    • Boost Reference Port

    CARB Warning

    For race/ off road use or for use on pre-1966 vehicles.

    Emissions warning: this part only legal for sale or use in California for racing (competition) vehicles which may never be used, registered, or licensed for use upon a public highway, or if installed in vehicles model-year 1965 or older; motorcycles model-year 1977 or older; or off-highway recreational vehicles (such as off-road motorcycles and all-terrain vehicles) model-year 1996 and older. Any other use renders the vehicle tampered and not legal for use on California public highways (any public street or roadway, public dirt road, public park, or publicly maintained right of way open to the use of the public for vehicular travel). Violations subject to $37,500 penalty per violation per vehicle, revocation of registration, loss of use on California public right of ways, and proof of correction for tampering. There are similar restrictions and penalties under federal law and the laws of all other states with penalties under federal law of up to approximately $45,268 per tampered vehicle and/or engine.

    MSD 2938 Specifications

    MFG. Part #2938
    Regulator StyleReturn
    Speedway Motors Catalog Part #547-2938
    Fuel Pressure Rating (psi)15-90
    Sold in QuantityEach
    Boost/Vacuum Reference PortYes
    Gauge PortYes
    Fittings IncludedNo
    Inlet QuantityOne
    Inlet AttachmentFemale Threads
    Inlet Size-6 AN O-ring
    Outlet QuantityTwo
    Outlet AttachmentFemale Threads
    Outlet Size-6 AN O-ring
    Boost/Vacuum Rise Ratio1:01
    Regulator LocationInline
    GTIN Code085132029389
    Regulator MaterialAluminum
    Regulator FinishBlack/Clear anodized
    Mounting Bracket IncludedNo