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CP Piston Set 92mm Bore 8.5:1 CR (Part Number: )
CP Piston Set 92mm Bore 8.5:1 CR (Part Number: )
CP Piston Set 92mm Bore 8.5:1 CR (Part Number: )
CP Piston Set 92mm Bore 8.5:1 CR (Part Number: )
CP Piston Set 92mm Bore 8.5:1 CR (Part Number: )
CP Piston Set 92mm Bore 8.5:1 CR (Part Number: )
CP Piston Set 92mm Bore 8.5:1 CR (Part Number: )
CP Piston Set 92mm Bore 8.5:1 CR (Part Number: )
CP Piston Set 92mm Bore 8.5:1 CR (Part Number: )
CP Piston Set 92mm Bore 8.5:1 CR
Subaru WRX 2002-2005
Write a Review | 3 Q&As
Part # SC7399
$679.00
msrp: $806.00

Product will ship from manufacturer

Features & Product Details

RallySport Direct proudly carries a great selection of CP Pistons for those of you who need a strong and durable piston in a high-horsepower build. 

Here, you are looking at the CP Piston Set. These pistons will come provided with rings and wrist pins and are designed to sustain the perils of high horsepower and high boost builds.


FEATURES:

  • 92mm bore
  • 8.5:1 Compression ratio
  • Deep valve relief depth accommodates high lift camshaft
  • Made for +1mm valve sizes
  • Custom skirt cam and barrel design
  • Accumulator grooves
  • High strength aluminum forgings
  • High-performance rings
  • Fully CNC machined and balanced to +/- 1 gram
  • Wrist pins included at no additional cost
  • Double pin oilers, force fed oil ring
  • Pick lock grooves for easy lock removal
  • Pin fitting included
  • Specifications

    Brand: CP
    Anti-Friction Coating: No
    Bore Size: 92mm
    Compression Ratio: 8.5:1
    Head Alteration Required: No
    Machining Required: No
    Material: Forged
    Piston Rings Included: Yes
    QTY: 4
    Wrist Pin Clips: No
    Wrist Pins Included: Yes
    Mfgr. Warranty: No Warranty
    Condition: New Product
    Return Policy:

    RallySport Guarantee - 30 Days


    Items that are covered under the RallySport Guarantee offer a 30 day no questions asked return policy.

    RallySport Guarantee items may be returned within 30 days of the original invoice date and must include all the original parts and contents for a refund.

    The RallySport Guarantee does not apply to products that have been modified, damaged, misused or abused. All returns require an RMA (Return Merchandise Authorization) Number, and freight charges are strictly non-refundable. For more information regarding our freight refund policy, please refer to our return policy page found HERE.
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    QUESTIONS & ANSWERS

    • Q: boost  SLUGGO 19775 years ago

      how much boost could they handle
      • 0 of 0 people found the following answer helpful

        A:  There is no pressure or power rating on pistons. Reason is that they will fail as a result of detonation before cylinder pressures become an issue. And if cylinder pressures are an issue, your cylinder walls will fail first.

        Kirill C. @ RallySport Direct 5 years ago  
          
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    • Q: why   warlord_x696 years ago

      Hi guys why is it that a lot of piston manufacturers make these piston for wrx 02 8.5:1 instead of the stock 8.3:1c/r?? Every piston i find is 8.5:1 or 8.0:1
      • 0 of 0 people found the following answer helpful

        A:  Much of it will come down to the piston dome design and what each manufacture thinks is the ideal design. As to why the change in CR, that really is not a question with a answer and much of that will depend on the manufactures ideology of what is the best suited CR in their minds.

        Kirill C. @ RallySport Direct 6 years ago  
          
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    • Q: Compression Ratio  Drew Anthony7 years ago

      Since these pistons are at a slightly higher compression ration than stock, would this interfere with an Accessport V39 Tune at 91 Octane at all?
      • 0 of 0 people found the following answer helpful

        A:  Yes this would effect the tune and you would want to re-calibrate the tune for it accordingly

        Kirill C. @ RallySport Direct 7 years ago  
          
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