Kelford Subaru WRX High Performance Single Spring Kit

Kelford Subaru WRX High Performance Single Spring Kit

SUBARU EJ20/25 High performance 'PACALOY' valve spring set. 'Drop in fit' on the OEM retainer.

85lb seat pressure at 36.00mm install height. Coil bind is at 22.00mm

Kelford – KVS109-sti - This valve spring is engineered to match Kelford camshafts and is intended for use in engines using running up to 30lb of boost and 8000rpm, with stock valve train weights. There is no need for titanium retainers with this spring up to this boost and rpm level, so we made a premium quality valve spring that drops right in at stock installed height and using all stock parts.

Some other springs on the market also use this premium wire also but it is the processing and finishing of the Kelford Valve Spring that makes it superior. Once the spring is wound and the ends trimmed we do not stop there; we apply further process to make a higher quality, longer lasting valve spring. We chamfer the inner of the spring for better fit to the retainer, we polish, nanopeen and nitride the spring to increase its strength, and we ‘set’ the spring so that it is race ready right out of the box.

Kelford has made this valve spring to suit their camshafts because the other springs on the market had either too much open pressure, or too little closed pressure. This spring is specifically made to compliment the unique characteristics of the Subaru boxer engine, and they should be used to ensure proper performance and reliability. After all, your high performance engine is a sizeable investment, so we endeavor to bring you the highest quality parts at a realistic price.

This Kelford valve spring is made from the highest quality spring wire from Kobe in Japan, and is wound for Kelford in USA by the very best spring makers. 

Kelford Cams, uit de stad Christchurch op South Island in Nieuw Zeeland, is een wereldleider op het gebied van nokkenassen. Gespecialiseerd in het ontwerpen van high performance nokkenassen voor de motorsport. Begonnen in 1968 en tegenwoordig volledig gemoderniseerd met een ultra modern design systeem en de nieuwste CNC machines. Tegenwoordig zijn de nokkenassen van Kelford Cams te vinden in iedere race klasses. 

Custom nokkenassen is de specialiteit van Kelford Cams since 1968. Kelford Cams kan helpen bij iedere hoeveelheid en kan assisteren bij ieder design. Part-box.nl kan dus niet alleen helpen bij de off-the-shelf nokkenassen van Kelford, maar ook bij volledig custom werk. 

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  • RRP: €244,30 (incl. BTW)
  • Excl. BTW: €201,90