Wiseco Forged Pistons Toyota MR2 SW20 Celica AllTrac 3SGTE Gen 2 / 3 86.5mm +0.5mm -6 cc 9.0:1

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Wiseco pistons go through more finishing processes than any other piston on the market without driving the cost up. They come with more features standard than any other piston on the market, at a more affordable price than many of the competitors. The top face of the piston is textured to improve the combustion characteristics, and all kits come with rings, pins and locks.
Generous Valve Pocket designs that allow maximum flow around valve. Note: Piston to valve clearance must be checked. 

  • Piston Crown shapes designed to promote maximum Intake Charge efficiency thru scavenging mixture “Cross Flow” during intake and exhaust valve overlap. More fuel and air equals more horsepower!

  • Pistons designed to optimize squish or quench during compression combustion cycle event, resulting in resistance to detonation and pre-ignition. The end product is longer engine life and increased horsepower potential.

  • Complex Piston skirt profiles that reduce power robbing friction, yet promote stability in bore for optimum ring seal.  

  • Precision machined ring grooves with proper orifice/accumulator volume using calculated groove root diameters and axial widths, featuring excellent surface finish and flatness providing maximum ring seal and minimizes blow-by and oil consumption.

  • World class forging facility that utilizes the latest technologies featuring complex forged shapes, advanced materials, and featured-aligned grain flow technology.

  • Piston weights listed may vary.

  • All specs based on U.S. engine codes unless noted.

  • All Sport Compact pistons sold complete with rings, pins & clips.
  • Specifications

    More Information
    Barcode K615M865
    Note Non-AP Part Number. Does NOT have Armor Plating.
    Item Weight 364 g
    Shipping Weight (Dimensional) 5.250000
    Clearance Sale No
    Availability Back Ordered
    Part Type Pistons
    Make Toyota / Lexus
    Vehicle Model MR2 Turbo SW20, Celica GT-Four ST185 All-Trac, Celica ST205 JDM
    Model MR2 90-99 SW20, Celica All-Trac 90-93 ST185, Celica GT-Four 94-99 ST205
    Engine 3S-GTE Gen 2 SW20 ST185, 3S-GTE Gen 3 JDM SW20 ST205
    Rod Length 5.428" / 138mm
    Rod Length Oversize Standard Length
    Bore Diameter 86.5mm
    Bore Oversize 0.020" / 0.5mm
    Stroke 86mm (Standard Stroke)
    Compression Ratio 9.0:1
    Compression Ratio Range 8.0:1 - 9.0:1, 9.0:1 - 10.0:1
    Pin Size 0.866" / 22mm
    Included Ring Set 8650XX
    Included Pin S625
    Head cc 49 cc
    Dome cc -6 cc
    Compression Height 1.378" / 35mm
    Brand Wiseco
    Skirt Type Full Round
    Piston Material 2618
    Carb Legal No
    Wrist Pin Wall Thickness 0.157"
    Wrist Pin Dimensions .866" x 2.500" x .157"
    Shipping Label Free Shipping


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