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Boundary Racing Pumps
Home Shop Mazda 1.8L BP
  • BP-S3-HWMG

    Pump Assembly – Billet Gear High Flow MartenWear Treated Billet Backplate

    $739.00 Add to cart
  • BP-S2-HWMG

    BP Miata \ Escort High Flow Oil Pump

    $439.00 – $739.00 Select options
  • BP-S1-HWMG

    BP Miata \ Escort Assembled Oil Pump

    $329.00 – $629.00 Select options
  • BP-S2-SNC-HWMG

    BP Miata \ Escort High Flow 1.6L Small Nose Crank Oil Pump

    $439.00 – $739.00 Select options
  • BP-OPG-NON-VVT-HWMG

    BP Miata \ Escort Oil Pump Gears

    $199.00 – $339.00 Select options
  • BP-BBP-HWMG

    BP Miata \ Escort Billet High Flow Anti-Cavitaiton Backplate

    $199.00 Add to cart
  • BP-SH-K-HWMG

    Mazda Miata Oil Pump Shim Kits

    $15.00 Add to cart
1.8L BP

1.8L BP

The 1,839 cc BP, featuring a bore x stroke of 83 mm × 85 mm, is a DOHC 4 valves per cylinder variant of the B8. This Inline-four engine was called 'BP-ZE by Mazda engineers' and featured a forged crankshaft, piston oil squirters, a structural aluminum oil pan with cooling fins, a 7,000 rpm redline, and Variable Inertia Charging System (VICS) which is activated by a control solenoid at high rpm to increase horsepower in the upper rev range.

Used in the Protegé, Miata and 323

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