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Product detailed specification |
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Bore size |
87.00mm |
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Stroke |
86.00mm |
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Wiseco compression ratio (CR) |
13.5:1 |
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OEM compression ratio (CR) |
10.5:1 |
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Dome volume (CC) |
12cm3 |
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Compression height (CH) |
30.49mm |
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Pin diameter |
21mm |
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Features |
Accepts Turbo and Nitrous; asymmetrical FSR series |
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Fits for |
Opel - 2.0 16V (C20XE) |



Spring data:
Seat pressure - 75lbs @ 35.10mm
Open (lift) pressure - 191lbs @ 10mm
Spring coil bind - 20.70mm
Rate - 12.10lbs/mm
Max lift - 14.40mm
Outer spring outer diameter: 27.50mm
Outer spring inner diameter: 20.00mm
Inner spring outer diameter: 20.00mm
Inner spring inner diameter: 15.20mm
Set includes:
Dual springs: 16 pcs. SPR-TS1015-Z20
Titanium retainers: 16 pcs. RET-TS5.5-T5
Seat locators: 16 pcs. SEAT-TS-Z20







Spring data:
Seat pressure - 63lbs @ 34.30mm
Open (lift) pressure - 167lbs @ 10mm
Spring coil bind - 20.00mm
Rate - 10.40lbs/mm
Max lift - 14.00mm
Outer spring outer diameter: 27.50mm
Outer spring inner diameter: 20.00mm
Inner spring outer diameter: 20.00mm
Inner spring inner diameter: 15.20mm
Set includes:
Dual springs: 16 pcs. SPR-TS1012
Titanium retainers: 16 pcs. RET-TS50/T1