21 Series Cam Set-Gear Drive-Dyna -Big Twin
descriptionAndrews Products grinds its cams with the help of a computer with cam design capabilities.
This superior technology gives the utmost in both performance and reliability.
Only the best alloy steel billets and heat-treating processes are utilized.
Furthermore, the power in Harley's Twin Cam engine can be made even more convincing when superior Andrews computer-designed high-performance cams are installed.
Cams work well with fuel injection or carburetor models
Run best with low restriction exhausts (1700-5200 rpm)
Works well with carbs or fuel injection
Bolt-in cam for more torque with stock compression
Can be used with stock valve springs and tappets
Similar to the EV-23 cam
All Andrews gear-driven cams require four-gear set for installation (DS-199532(+$556.95) for 99-06 applications
0925-0152(+$535.95) for 07-17 Twin Cam and 06 Dyna applications).
Chain Driven Cams: 00-06 model cams use a splined cam drive sprocket.
These cams will fit in the 1999 Twin Cam motor, but the splined cam drive sprocket OEM #25716-99 or DS-199175(+$99.95) must be used. Installer must check coil bind, valve-to-valve clearance and valve-to-piston clearance.
59G, 60G and 64G cams are for highly tuned engines and require the knowledge of an expert engine builder for proper setup and installation.
Type: Gear
Application: Exhaust / Intake
Grind: 21 Series
Intake Lift at TDC: 0,134"
Intake Open: 10°
Intake Lobe Centerline: 100°
Intake Close: 30°
Intake Lift: 0,498"
Intake Duration: 255°
Exhaust Lift: 0,498"
Exhaust Duration: 264°
Exhaust Lift at TDC: 0,121"
Exhaust Open: 41°
Exhaust Lobe Centerline: 106°
Exhaust Close: 8°
This superior technology gives the utmost in both performance and reliability.
Only the best alloy steel billets and heat-treating processes are utilized.
Furthermore, the power in Harley's Twin Cam engine can be made even more convincing when superior Andrews computer-designed high-performance cams are installed.
Cams work well with fuel injection or carburetor models
Run best with low restriction exhausts (1700-5200 rpm)
Works well with carbs or fuel injection
Bolt-in cam for more torque with stock compression
Can be used with stock valve springs and tappets
Similar to the EV-23 cam
All Andrews gear-driven cams require four-gear set for installation (DS-199532(+$556.95) for 99-06 applications
0925-0152(+$535.95) for 07-17 Twin Cam and 06 Dyna applications).
Chain Driven Cams: 00-06 model cams use a splined cam drive sprocket.
These cams will fit in the 1999 Twin Cam motor, but the splined cam drive sprocket OEM #25716-99 or DS-199175(+$99.95) must be used. Installer must check coil bind, valve-to-valve clearance and valve-to-piston clearance.
59G, 60G and 64G cams are for highly tuned engines and require the knowledge of an expert engine builder for proper setup and installation.
Type: Gear
Application: Exhaust / Intake
Grind: 21 Series
Intake Lift at TDC: 0,134"
Intake Open: 10°
Intake Lobe Centerline: 100°
Intake Close: 30°
Intake Lift: 0,498"
Intake Duration: 255°
Exhaust Lift: 0,498"
Exhaust Duration: 264°
Exhaust Lift at TDC: 0,121"
Exhaust Open: 41°
Exhaust Lobe Centerline: 106°
Exhaust Close: 8°
