| For those owners of the Twin Cam Harley Davidson | | | | sells a 95 inch big bore kit that includes the new |
| Motorcycle you may find that the 63 HP your bike has | | | | cylinders and pistons. I'd recommend using Forged |
| from the factory is not quite enough power. While the | | | | pistons as they can be reused if you decide to add |
| Twin Cam engine is a great improvement over the 80 | | | | new heads in the Stage 3. Common in the stage 2 |
| inch Evolution motor there is much that can be done to | | | | build is the addition of a new CAM. The combination of |
| make more power. | | | | the 95 inch kit, cam and pistons should get your |
| Stage 1 | | | | motorcycle in the 80HP range. |
| The Twin Cam motor in most new Harley Davidson | | | | Stage 3 |
| Motorcycles is stock as an 88 inch twin cylinder motor. | | | | For those with more money to spend you can further |
| Stock horsepower is around 63 and makes for a | | | | boost your power 90-95HP by adding new Cylinder |
| decent ride with generally acceptable power. Adding | | | | Heads and forged pistons. On my 2000 FXSTS this |
| what is known as a Stage 1 kit can boost this power | | | | put me at 96HP and 100 Ft/Lbs of Torque. |
| to 70+ HP. A typical stage 1 bolt on will include new | | | | Depending on the parts you choose you may get |
| exhaust, and air cleaner. Some folks will also put a | | | | more or less HP than what's indicated here. The idea |
| carb kit in their stock CV carburetor or bolt on an | | | | was to provide a basic description of the various |
| aftermarket carb like an S&S B or Mikuni HSR42. For | | | | stages and parts involved. |
| those folks with fuel injection a new map can be | | | | For exhaust I'd recommend for max midrange benefit |
| added that will make your motorcycle work well with | | | | choose a two into one system. If you must go with a |
| the new exhaust and air cleaner. | | | | two into two then try and find a manufacturer that |
| Stage 2 | | | | specializes in performance like the Python III. There are |
| When 70HP isn't enough, you can get to about 80 HP | | | | many makers of great looking and sounding pipes but |
| by adding a big bore kit. You can either have the | | | | performance is usually an afterthought. |
| cylinders bored our or bolt on new cylinders. Harley | | | | |