CNC machined aluminum intake spacer from NARAKU. The NARAKU Jet Flow Intake Spacer is designed for flow optimization on 51mm NARAKU cylinder heads. The conical bore of the spacer allows unobstructed flow from the 24mm intake port into the 21mm intake port of the 51mm cylinder head (included in 51mm as well as 52.4mm NARAKU cylinder kits). Due to the occurring Venturi effect, the fresh gas is accelerated and this improves the filling level in the combustion chamber. Result: The torque increases!
With appropriate adjustment work on the original cylinder head or on the intake manifold, the spacer can also be used with original setup or tuning stages below the 90cc kit. The use of a 24mm carburetor is optimal, but not mandatory.
When mounting, please ensure a clean transition from the spacer to the cylinder head. The spacer can be accidentally mounted 180° laterally reversed. In this case, however, it partially covers the intake port.
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