Modern Automotive Performance
Modern Automotive Performance
  • Tomei EJ25/EJ26 Forged Piston Set (Subaru WRX/STi) 1182997312 - Modern Automotive Performance
  • Tomei EJ25/EJ26 Forged Piston Set (Subaru WRX/STi) 1182997312 - Modern Automotive Performance

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    Tomei EJ25/EJ26 Forged Piston Set (Subaru WRX/STi) 1182997312

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    PART# TOM 1182997312

    $1,539.00   $1,710.00
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    Tomei EJ25/EJ26 Forged Piston Set (Subaru WRX/STi) 1182997312 - Modern Automotive Performance

    The ellipse barrel shape profile was chosen from the advanced analysis of the analysis distribution of piston temperatures, material properties and the coefficient thermal expansion rates. This allowed our design to use much tighter piston clearances for maximum power range. This greatly reduces blow by gases, friction loss and no noise. This maximizes power and longevity of the piston. This is the advantage of Tomei's Pistons.

    • LOW FRICTION / BEST CLEARANCE
    • PROFILE DEISGNED FOR OPTIMIZED COMBUSTION
    • DURABLE AT APPROX 74g!

    BORE
    DIAMETER
    (Φ)

    PIN
    DIAMETER
    (Φ)

    PIN
    LENGTH
    (mm)

    RECESS

    COMPRESSION
    HEIGHT (mm)

    CROWN
    VOLUME (cc)

    PISTON
    WEIGHT (g)

    99.75

    23.0

    62

    YES

    30.7

    19.5

    380

     

    PISTON PIN
    WEIGHT (g)

    GROSS
    WEIGHT
    (g)

    TOP RING
    BxT (mm)

    SECOND RING
    B x T (mm)

    OIL RING
    B x T (mm)

    MATERIAL

    STOCK
    WEIGHT (g)

    123

    503

    1.2 x 3.6

    1.2 x 4.0

    2.0 x 3.0

    ALUMINUM

    577

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