JBS Auto Designs
Whitting Valley Road
Chesterfield Derbyshire
S41 9EY
Opening Hours
08:30-18:00 Mon to Fri
09:00-13:00 Sat

Valve Springs kit: 1.8/2.0 8V 7mm Stem
Part Number: SPRK-V2091/4-7

Supertech Performance is known for their experience of more than 20 years in the manufacturing of racing valves, along with the application of computerized Finite Element Analysis (FEA).
Supertech Valve Springs endure a rigorous and intensive testing along with working very closely with many engine builders in order to continuously improve and provide the market with the best possible product for every application.
Supertech performance valve springs are made with premium Superclean Chrome Silicon Vanadium Steel Alloy for higher performance and durability at high RPM ranges. The Supertech materials also provide for better memory, which translates into higher performance.
Computer designed to ensure that wire stress levels do not overpass their limits, Supertech Valve Springs are manufactured for long term durability even under the most extreme conditions.
Supertech Retainers are manufactured with high quality military certified Titanium alloy, CNC machined for a tight fit that will ensure a long durability.
- Made with premium Super Clean Chrome Silicon Vanadium Steel alloy
- Designed specifically for higher performance and durability at high RPM's
- Retainers are manufactured with high quality military certified Titanium alloy
- CNC machined for a tight fit that will ensure a long durability
Kit Includes:
Dual Valve Spring 86@ 31.75 (8) SPR-V2091/4 + (8)RET-021 (Triple Groove)+SEAT-VW8V-1
Outer Spring | Inner Spring | Pressure (lbs@mm) | |||
O.D. (mm) | I.D. (mm) | O.D. (mm) | I.D. (mm) | Seat | Open (lift) |
30.40 | 23.20 | 21.90 | 16.50 | 86 @ 331.75 | 208 @ 11.50 |
Max Net lift | Coil Bind | Rate | Titanium Retainer |
mm | mm | lbs./mm | Part Number |
14 | 19.00 | 11.20 |
RET-021 (triple Groove) + SEAT-VW8V-1 |