TwinTurbo.NET: Nissan 300ZX forum - JWT 500 Cams with Ferrea springs???
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Subject JWT 500 Cams with Ferrea springs???
     
Posted by backinblack626 on November 28, 2018 at 3:11 PM
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Message Ive just purchased some JWT 500 hydraulic cams as well as a full Ferrea valve kit for my current build. So it seems the heigh is 35 mm on both Ferrea and JWT springs. Ferrea springs have 80lbs spring pressure and JWT has 71. JWT has been extremely vocal about using only their valve springs. A source from CZP claims they will be just fine. Has anyone used Ferrea springs with JWT cams? Also does anyone know if the valves are same height at stock? Above two specs are only two I could find. Full compressed height is also important. Any insight is greatly appreciated.

     
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