CAM upgrade...
Also you need to decide what your looking for, more power on the left side, 3500 rpm or so and under where you usually ride, or more power on the right side, above 3500 rpm.
Also you need to decide what your looking for, more power on the left side, 3500 rpm or so and under where you usually ride, or more power on the right side, above 3500 rpm.
First time I built the 110 CVO King, I had Don at HD street performance do the heads, he set the heads for a 10.8 compression using HD 10.5 pistons. We used AV&V beehive valve springs, woods lifters. I used the HD 259E cam, with HD 5.3 gmp injectors and a HPI 55mm throttle body with a 58mm intake. Turned out real nice, at 121 HP and 123 torque. Nice long flat torque curve, with it being over 100 torque by 2250 RPM.
Once HD came out with the 117 kit, I looked at it and decided it did not have enough compression. So I just bought the 117 Cylinders. Don at HD Street performance had CP build me some 11.4 compression pistons. I selected a woods cam, the TW 9B-6. Woods Alpha lifters. Had to upgrade the clutch to a Aim VP-SDR.
This gives a great torque curve, over 100 torque by 2300 RPM, over 120 by 2700 rpm and stays over 120 until 6000 rpm. Power everywhere, easiest bike to ride I have ever owned.
They key with building a motor is everything has to work together, the cam has to be for the compression, the throttle body has to be size right, not to big, and a good exhaust with correct back pressure. Everything works together. I could have had more top end with a bigger throttlebody, but would have lost low torque.










