1990

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  • Oil Pan Baffle 1986-1992

    OIL PAN BAFFLE, 13B 86-92

    Oil Pan Baffle 13B 86-92

     Oil Baffle Plate slows the return of engine oil as it drains from the engine into the pan. In slowing the oil’s return, air that has been suspended in the oil (as foam) is allowed more time to separate from the oil.

    Removing this trapped air both improves the ability of the oil to transfer heat and reduces pressure drops at high RPM. The plate is sandwiched between the engine and the oil pan. It is recommended that two oil pan gaskets be used, one below and one above the plate, to provide proper sealing.

    SKU: 11825
    $76.41
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  • OIL PAN HOLE COVER PLATE, OIL LEVEL SENSOR

    OIL PAN HOLE COVER PLATE, OIL LEVEL SENSOR

    Oil Pan Hole Cover
    (covers oil level sensor hole)

    SKU: MTX005
    $6.00
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  • OIL RELIEF VALVE, ADJUSTABLE STREET

    OIL RELIEF VALVE, ADJUSTABLE STREET

    OIL RELIEF VALVE, ADJUSTABLE STREET

    The Racing Beat high performance Rear Oil Pressure Regulator is designed for use on all 1971-1992 12A, 13B, and 20B engines and interchanges exactly with the stock unit. As supplied by Mazda, the factory pressure regulator is intended to bypass at maximum nominal rate of 71.1 PSI. For use on higher performance street applications the Racing Beat regulator can be substituted, which bypasses at a higher maximum nominal rate of 80-85 PSI.

    As a general rule, oil pressure should be increased as the horsepower output and engine RPM increases. As horsepower and RPM demands increase, it is beneficial to have higher oil pressure between the shaft and bearings to prevent possible catastrophic contact between spinning components. Additionally, as oil pressure is increased, flow rate also increases – hence, more oil is available to cool the bearings and rotors.

    SKU: 11810
    $164.01
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  • OIL RELIEF VALVE, ADJUSTABLE/COMPETITION

    OIL RELIEF VALVE, ADJUSTABLE, COMPETITION

    OIL RELIEF VALVE, ADJUSTABLE, COMPETITION

    The High Performance Rear Oil Pressure Regulator interchanges exactly with the stock rear oil pressure regulator on all 1971-2008 12A, 13B, and 20B engines. This oil pressure regulator is designed to bypass at 105-115 PSI. (Pressure this high should be used only for racing). When using this regulator, the front pressure regulator should be shimmed an 1/8-inch to ensure that it does not limit the oil pressure (shims included).

    As a general rule, oil pressure should be increased as the horsepower output and engine RPM increases. As horsepower and RPM demands increase, it is beneficial to have higher oil pressure between the shafts and bearings to prevent possible catastrophic contact between spinning components. Additionally, as oil pressure is increased, flow rate also increases – hence, more oil is available to cool the bearings and rotors.

    Tech Notes:

    – The 1993-95 13B Twin Turbo the factory rear oil pressure regulator bypasses at a maximum nominal rate of 110 PSI.

    -The 2004-2008 RX-8 Renesis engine factory rear oil pressure regulator bypasses at a maximum nominal rate of 80 PSI.

    – The 2009-2011 RX-8 Renesis engine is not equipped with a rear pressure regulator. Nominal oil maximum oil pressure on this application is 110-115 PSI. We do not offer a regulator to increase the oil pressure on this application.

     

    SKU: 11812
    $164.01
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