APPLICATION:      HONDA CRF 450 R       13-16

 

PROFILE CHARACTERISTICS:

 

HIGH PERFORMANCE PROFILE designed for TT and MOTOCROSS applications.

This profile provides great increase throttle response and mid end: high lift combined with a middle duration increases torque and maintain good increases in top end as well.

 

Requires Exhaust System, High Compression Piston, and Performance Valve Spring Kit. Check ALL clearances!

Larger diameter lifters are required.

 

 

Web Cams item code:                               59-002

Profile:                                                      493 / 1081

 

 

                                                                 INTAKE                       EXHAUST

Valve Lash (Inch):                         .006"                            .009"- .0011”

Valve Lift (Inch):                           0.415                            0.317

Valve Lift (mm):                            10.54                            8.05

Advertised Duration:                     276°                             281°    

Duration @ 0.050":                        252°                             243°

Lobe Center:                                 110°                             104° Overall 107°

OPENING:                                     16° before TDC            45.5° before BDC

CLOSING:                                     56° after BDC               17.5° after TDC