The Supertech ST-SPRK-TC25D-VR6-36 dual valve spring kit is specially designed for VW VR6 24V / R32 engines. Built for high-performance and racing applications, these springs ensure maximum reliability at high RPM and under extreme loads.
Key Features:
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Material: Premium chrome-silicon-vanadium alloy for exceptional strength under high mechanical and thermal stress.
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Design: Computer-optimized profile and stress distribution to prevent material fatigue even in extreme conditions.
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Retainers: Certified CNC-machined titanium retainers for reduced weight, superior strength, and durability.
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Benefits: Lighter valvetrain, capability for higher RPM, prevention of valve float even in heavily tuned engines, and improved valvetrain stability.
Technical Specifications:
| Parameter | Value |
|---|---|
| Seat pressure | 80 lbs @ 36 mm |
| Open pressure | 205 lbs @ 10 mm |
| Max lift | 13.90 mm |
| Coil bind | 21 mm / 17 mm |
| Spring rate | 12.6 lbs/mm |
| Springs in set | 24 pcs |
| Inner spring ID | 13.00 mm |
| Inner spring OD | 18.00 mm |
| Outer spring ID | 18.00 mm |
| Outer spring OD | 25.00 mm |
| Retainer | Titanium RET-K20A3/TC25 |
| Seat Locator | SEAT-VR624 |
Applications:
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VW VR6 24V / R32 performance and motorsport builds.
Kit Includes:
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Dual valve springs (24 pcs)
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Titanium retainers (24 pcs)
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Seat locators (24 pcs)
Main Advantages:
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Designed for extremely high RPM and heavy load operation.
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Increased resistance to fatigue and high temperatures.
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Eliminates valve float even at high boost and horsepower levels.
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Allows raising the engine rev limit in highly tuned builds.
These Supertech VR6 24V valve springs are a proven choice for tuners and racers who demand maximum valvetrain stability and durability. Extensively tested in racing and drag applications.







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