Auto Racing Products 81.5mm Tapered Piston Ring Compressor — Precision Engine Assembly Tool

SKU: BQDN_901-8150
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About Auto Racing Products ARP (Automotive Racing Products) makes the ...Read More

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Sale price$63.99
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Car Wheel Size Chart

Wheel Diameter (inches) Tire Width (mm) Aspect Ratio Rim Width (inches)
14185655.5
15195606.0
16205556.5
17215507.0
18225457.5
19235408.0
20245358.5

Note: Wheel and tire sizes vary by car make and model. Always consult your vehicle’s manufacturer for exact specifications.

How to Read Tire Size

Example: 225/45R17 means:

  • 225 = Tire width in mm
  • 45 = Aspect ratio (height as % of width)
  • R17 = Rim diameter in inches

Product Details

Product Description
Part Numbers
Sizing & Fit

About Auto Racing Products

ARP (Automotive Racing Products) makes the strongest fasteners in motorsport — head studs, main studs, rod bolts, and flexplate bolts used by every Formula 1, NHRA, NASCAR, and championship motorsport program. Aerospace-grade alloys, exact-fit machining.

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Precision Piston Ring Compression

The Auto Racing Products 81.5mm Tapered Ring Compressor is the ultimate solution for engine builders working on 81.5mm bore applications. This precision-machined tool simplifies the piston installation process, allowing for a smooth transition into the cylinder bore without the risk of snagging or damaging your rings. Its tapered design acts as a funnel, compressing the rings uniformly as the piston is pushed through.

Superior Build Quality

Crafted from premium aluminum, this compressor is both lightweight and incredibly durable. The black anodized finish provides excellent corrosion resistance and a smooth surface that reduces friction during the installation process. Unlike universal adjustable compressors, this bore-specific unit offers a perfect fit every time, ensuring consistent results for every cylinder in your block.

  • Bore Size: 81.5mm precision fit
  • Material: High-strength billet aluminum
  • Finish: Black anodized for durability
  • Design: Specialized tapered geometry
  • Advantage: Eliminates ring damage and installation errors

Proper ring seating is the foundation of a healthy engine, directly impacting compression ratios and oil consumption. Using the correct tool prevents common assembly mistakes that lead to premature engine failure. Whether you are a professional engine builder or a dedicated enthusiast, this tool ensures your engine is assembled with the same care and precision as a championship-winning motor. Elevate your engine building game with professional-grade tools from GGCRACING.

Product Details

Product Description
Part Numbers
Sizing & Fit

About Auto Racing Products

ARP (Automotive Racing Products) makes the strongest fasteners in motorsport — head studs, main studs, rod bolts, and flexplate bolts used by every Formula 1, NHRA, NASCAR, and championship motorsport program. Aerospace-grade alloys, exact-fit machining.

Watch in action

Precision Piston Ring Compression

The Auto Racing Products 81.5mm Tapered Ring Compressor is the ultimate solution for engine builders working on 81.5mm bore applications. This precision-machined tool simplifies the piston installation process, allowing for a smooth transition into the cylinder bore without the risk of snagging or damaging your rings. Its tapered design acts as a funnel, compressing the rings uniformly as the piston is pushed through.

Superior Build Quality

Crafted from premium aluminum, this compressor is both lightweight and incredibly durable. The black anodized finish provides excellent corrosion resistance and a smooth surface that reduces friction during the installation process. Unlike universal adjustable compressors, this bore-specific unit offers a perfect fit every time, ensuring consistent results for every cylinder in your block.

  • Bore Size: 81.5mm precision fit
  • Material: High-strength billet aluminum
  • Finish: Black anodized for durability
  • Design: Specialized tapered geometry
  • Advantage: Eliminates ring damage and installation errors

Proper ring seating is the foundation of a healthy engine, directly impacting compression ratios and oil consumption. Using the correct tool prevents common assembly mistakes that lead to premature engine failure. Whether you are a professional engine builder or a dedicated enthusiast, this tool ensures your engine is assembled with the same care and precision as a championship-winning motor. Elevate your engine building game with professional-grade tools from GGCRACING.

Product Details

Product Description

About Auto Racing Products

ARP (Automotive Racing Products) makes the strongest fasteners in motorsport — head studs, main studs, rod bolts, and flexplate bolts used by every Formula 1, NHRA, NASCAR, and championship motorsport program. Aerospace-grade alloys, exact-fit machining.

Watch in action

Precision Piston Ring Compression

The Auto Racing Products 81.5mm Tapered Ring Compressor is the ultimate solution for engine builders working on 81.5mm bore applications. This precision-machined tool simplifies the piston installation process, allowing for a smooth transition into the cylinder bore without the risk of snagging or damaging your rings. Its tapered design acts as a funnel, compressing the rings uniformly as the piston is pushed through.

Superior Build Quality

Crafted from premium aluminum, this compressor is both lightweight and incredibly durable. The black anodized finish provides excellent corrosion resistance and a smooth surface that reduces friction during the installation process. Unlike universal adjustable compressors, this bore-specific unit offers a perfect fit every time, ensuring consistent results for every cylinder in your block.

  • Bore Size: 81.5mm precision fit
  • Material: High-strength billet aluminum
  • Finish: Black anodized for durability
  • Design: Specialized tapered geometry
  • Advantage: Eliminates ring damage and installation errors

Proper ring seating is the foundation of a healthy engine, directly impacting compression ratios and oil consumption. Using the correct tool prevents common assembly mistakes that lead to premature engine failure. Whether you are a professional engine builder or a dedicated enthusiast, this tool ensures your engine is assembled with the same care and precision as a championship-winning motor. Elevate your engine building game with professional-grade tools from GGCRACING.

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