TWIN CAMS®, EXCEPT 2006 DYNA®
Andrews Twin Cam 88™ camshafts are available with S&S® gear drives. Gear driven cams use less engine power than stock chains. If less power is needed to run the camshafts, more power gets to the rear wheel. For all-out drag motors, there is another advantage. With gear drives, super high lift cams can be used.
This requires some explanation. With chain drive cams, valve lifts of .600 or higher will result in interference between front and rear cam lobes. With the gear drive cams, lobe tip angles are different so lobe-to-lobe
interference cannot occur. The gear drives are so smooth that ball bearings are used on both camshafts instead of a rear roller bearing. Also, gear drive cams do not have chain tensioner shoes to wear out.
WITHOUT GEAR:114-74
GRIND: 26G
TIMING: 41/09
DURATION @ .53: 230
DURATION @.020: 266
VALVE LIFT: .490
LIFT @ TDC: .112
SPRINGS: Stock
Bolt-in cam for lower RPM torque, FLT, etc. For two up touring this cam will add torque & HP at lower & middle ranges.(1800 - 5500 RPM)
26G CAMS WORK WELL WITH FUEL INJECTION OR CARBURETORS
Andrews Twin Cam 88™ camshafts are available with S&S® gear drives. Gear driven cams use less engine power than stock chains. If less power is needed to run the camshafts, more power gets to the rear wheel. For all-out drag motors, there is another advantage. With gear drives, super high lift cams can be used.
This requires some explanation. With chain drive cams, valve lifts of .600 or higher will result in interference between front and rear cam lobes. With the gear drive cams, lobe tip angles are different so lobe-to-lobe
interference cannot occur. The gear drives are so smooth that ball bearings are used on both camshafts instead of a rear roller bearing. Also, gear drive cams do not have chain tensioner shoes to wear out.
WITHOUT GEAR:114-74
GRIND: 26G
TIMING: 41/09
DURATION @ .53: 230
DURATION @.020: 266
VALVE LIFT: .490
LIFT @ TDC: .112
SPRINGS: Stock
Bolt-in cam for lower RPM torque, FLT, etc. For two up touring this cam will add torque & HP at lower & middle ranges.(1800 - 5500 RPM)
26G CAMS WORK WELL WITH FUEL INJECTION OR CARBURETORS