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SPR-BMS65-BE1-40
SPR-BMS65-BE1-40
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Supertech BMW S65/S85 Beehive Valve Spring - Set of 40 (Use w/Factory Retainer & Base)

Supertech
SPTSPR-BMS65-BE1-40
01037721244856
Valve Springs, Retainers
Out of stock
$ 824.02 $ 659.41

Supertech Beehive Valve Springs 

The leader in high-performance valve spring technology. Engineered for superior durability, precision, and efficiency, these valve springs are the top choice for racing enthusiasts and performance builders seeking maximum RPM potential, reduced valve train mass, and unmatched reliability under extreme conditions. Here’s why the Supertech Beehive Valve Springs outperform all competitors and why they’re the best investment for your high-performance engine.

Why Supertech?

  • Unmatched Performance: Designed to reduce valve train mass and increase RPM potential, Supertech Beehive Springs deliver superior stability and efficiency at high RPMs, making them ideal for racing and high-performance engines. Their unique beehive design lowers alternative mass and reduces variable natural frequency rates, ensuring exceptional performance under the most demanding conditions.
  • Premium Materials: Crafted from premium Superclean Chrome Silicon Vanadium Steel alloy, these springs offer higher durability and better structural memory, providing a competitive edge in extreme racing environments. This high-quality alloy ensures the springs maintain performance over time, even under intense stress.
  • Precision Engineering: Supertech’s valve springs are computer-designed to keep wire stress levels within safe fatigue limits, controlling harmonics for maximum durability. CNC-machined retainers made from high-quality military-certified titanium alloy ensure a tight fit and long-lasting performance.
  • Proven Reliability: Trusted by professional racers and engine builders worldwide, Supertech Beehive Springs are engineered to withstand the rigors of high-RPM applications, offering unparalleled reliability for both street and track use.
  • Outperforms Competitors: Unlike standard valve springs, Supertech’s beehive design minimizes valve float and enhances valve control, providing a significant performance advantage over other brands. No other valve spring matches the balance of lightweight design, durability, and high-RPM capability.

Included

  • Beehive Valve Springs: Precision-engineered for optimal performance and durability.
  • Titanium Retainers: CNC-machined from military-certified titanium alloy for a secure fit and lightweight design.
  • Valve Spring Seats/Bases: Designed to work seamlessly with the springs and retainers for a complete valve train upgrade.

Part Number: SPR-H1021D (Dual Spring Kit, as specified for select applications).

This complete kit ensures you have everything needed to upgrade your valve train for maximum performance and reliability.

Vehicle Compatibility

  • Honda/Acura B-Series Engines (B16, B18C, B18A/B):
    • 1992–2001 Honda Civic (Si, Type R, VTEC models)
    • 1994–2001 Acura Integra (GS-R, Type R)
    • 1990–2001 Honda CRX (VTEC models)
    • 1999–2000 Honda Civic Si (B16A2)
  • Honda/Acura K-Series Engines (K20, K24, select applications):
    • 2002–2006 Acura RSX (Type-S, Base)
    • 2002–2011 Honda Civic Si (K20 models)
    • 2004–2008 Acura TSX (K24)
    • 2003–2007 Honda Accord (K24, select models)

Other Applications: Custom engine builds using B-Series or K-Series VTEC heads (verify specifications for non-standard setups).

Note: Always confirm fitment with your specific engine configuration, as custom builds or aftermarket heads may require additional verification.

Technical Specifications

  • Spring Type: Dual Beehive Valve Springs
  • Material: Superclean Chrome Silicon Vanadium Steel Alloy
  • Retainer Material: Military-Certified Titanium Alloy (CNC-machined)
  • Outer Spring OD: Varies by application (beehive taper design)
  • Inner Spring OD: Varies by application
  • Max Lift: Designed for high-lift camshafts (verify with your camshaft specs)
  • Seat Pressure: Optimized for high-performance VTEC engines
  • RPM Capability: Supports high-RPM applications (up to 10,000+ RPM, depending on setup)
  • Rate: 10.3lbs/mm
  • Spring Top OD: 21.60mm
  • Spring Bottom OD: 26.50mm
  • Coil Bind: 27mm

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