Sport valve spring set from Supertech made of high quality tempered steel with titanium spring plates for all FA20 Boxer engines.
These valve springs have an extra adjusted spring rate.
– Better and faster response
– Higher engine speed possible
– Lighter valve train due to titanium plates
– Absolutely stable for high rpm
Outer spring outer diameter: 29,05mm
Outer spring inner diameter: 21,85mm
Inner spring outer diameter: 20,50mm
Inner spring inner diameter: 15,50mm
Valve seat pressure: 33,57kg/33,5mm
Pressure open: 78,93kg/10mm
Max. Stroke: 14.00mm
Min. spring height (when compressed): 19.50mm
Spring rate in lbs./mm: 10.00
Included in kit:
- 16 valve springs
- Spring retainer made of titanium top
- Spring retainer from steel below
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