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Aftermarket Performance Parts for the Sti
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COSWORTH ULTRA-HIGH RPM DUAL VALVE SPRING / TITANIUM RETAINER SET - STI 04-07
PRODUCT OVERVIEW
Cosworth Ultra
Race Valve Spring Kits are engineered for use in situations that
require valve control in extreme conditions. Each kit consists of dual
valve springs with matched lightweight titanium retainers, keepers, and
hardened steel springs seats. Cosworth Ultra Race Valve Springs are
wound from the highest quality chrome silicone steel with chamfered
ends and are heat treated and stress relieved for long term
reliability. Ultra Race Valve Spring kits are compatible with Cosworth
high performance valves. Specifications:
| Free |
L1 |
F1 |
F1 |
L2 |
F2 |
F2 |
Max |
Coil |
| height |
mm |
N |
lbs. |
mm |
N |
lbs. |
Lift |
Bind |
| 46.10 |
36.0 |
356 |
80 |
22.1 |
1019 |
229 |
13.9 |
20.8
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- L1=Install Height
- F1=Force @ L1
- L2=Max Lift
- F2=Force @ Max Lift
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