APE Race Parts
APE Hayabusa Heavy Duty Valve Springs
APE Hayabusa Heavy Duty Valve Springs
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World famous APE valve springs are made from premium chrome silicone wire for consistant pressure and excellent fatigue life. Racers as well as street riders have come to depend on APE springs for winning performance. For use with any high lift cam and / or aggressive camshaft profile.
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Valve springs should never be run closer than .050" to coil bind.As you can see, OEM springs will only handle a max .380 lift. However at that lift the pressure is too low to properly control the valves at high RPM. APE springs are over 30 LBS higher at .380 -- and can safely handle up to .470" lift, or allow shimming to even higher pressures depending on the application. PDF instructions for setting valve springs using assembled height method. |
For the Hayabusa, APE offers VS1300GSX-2 for turbos, nitrous or cams with radical ramps - See specs below.<
| PART NUMBER | SEAT PRESSURE | COIL BIND | PRICE |
| STOCK | 43 LBS | .430" | - |
| VS1300GSX-2 | 65-70 LBS | .520 | $148.69 |
| VS1300GSX | 47 LBS |
.515 |
$148.69 |
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