The best cam for a Milwaukee Eight engine depends on what you expect out of the motorcycle. DC V-Twin offers a great all around cam that will provide excellent torque and horsepower through a wide RPM band. This is a bolt in cam that requires no modification to the valve springs and can be installed in a few hours. We have a typical horsepower increase of 37% to 50% or 30 to 40 plus horsepower on a stock Milwaukee Eight. Below are several dyno sheet comparisons of 107’s and 114’s using our custom M8 cam.
DC V-Twin also offers a variety of additional cams which are available for different applications. For Larger displacement engines a larger lift cam may be desired. If you want a top end only cam then we can select the proper Milwaukee Eight cam to get the job done. You may want something with only low end torque and again we can help select the best cam for you. Just give us a call to find out which cam will best suit your driving style. Call 478-988-4313 today to get your motor running before you head out on the highway.
Below is a graph of a before 107 with slip-ons and an after graph of the same 107 with the DC V-Twin .465 lift Milwaukee 8 cam, Outlaw exhaust and HD stage 1 air Cleaner.
Below is a before graph of the stock M8 114 engine along with an overlay of the same bike with the DC V-Twin .465 Milwaukee 8 cam, S&S Cycle exhaust, and an Arlen Ness stage 1 air cleaner.
Below is a dyno graph of a 2019 Roadglide with slip-ons for the baseline run and an overlay of the final run adding a the DC V-Twin .465 Milwaukee 8 cam, Bassani exhaust and a stage 1 air cleaner. 40 horsepower gain!!!
Below is a 2019 CVO 117 stock baseline run and an over lay of the final run adding the DC V-Twin .465 Milwaukee 8 cam, D&D Billet Cat, and the HD heavy breather.
And let DC V-TWIN ENHANCE THE PERFORMANCE OF YOUR HARLEY!
CYLINDER HEAD PORTING BEFORE AND AFTER ON HD HOOLIGAN EXHAUST PORT
Every application requires a specific port design to match the goals of the end user. Twin Cam and Milwaukee 8 cylinder head ports are totally different and require specific cylinder head porting to achieve the maximum efficiency. Below are several cylinder head ports from Harley Twin Cam 107 upgrades and CVO 110 to 113 upgrades. As you can see, exceptional detail and design is implemented to each area of the port.
TWIN CAM 107 INTAKE PORTING FROM START TO FINISH
AMAZING LOOKING CVO 110 CYLINDER HEAD PORTING WITH STOCK GUIDES
MILWAUKEE 8 CYLINDER HEAD PORTING AND NEW OVERSIZED VALVES INSTALLED
SERDI TOUCH UP VALVE JOB ON 107 TWIN CAM PORTED CYLINDER HEAD
Cylinder head porting refers to the process of modifying the intake and exhaust ports to improve the air flow. Cylinder heads, as cast by the manufacturer, are usually suboptimal due to design and manufacturing constraints. Porting of the heads provides the finely detailed attention required to bring the engine to the highest level of efficiency. More than any single factor, the cylinder head porting process is responsible for the high power output of modern engines.
The cylinder head porting process can be applied to a standard factory production engine in the same manner it is applied to a racing engine. While the level of porting will vary for each application, the results will be the same. Porting of the cylinder heads will enhance the power output of each engine for daily use or a particular racing application.
Understanding of these air flow characteristics is critical to cylinder head porting. Daily human experience with air gives the impression that air is light and nearly non-existent as we move slowly through it. This is not the same exposure an engine running at high speed experiences with air flow. It senses a totally different substance. In the context of an internal combustion engine, air can be thought of as thick, sticky, elastic and even heavy. Pumping air becomes a major problem for engines running at speed. This is why cylinder head porting is so critical to enhancing the performance of any engine.
In addition to porting cylinder heads for Harley Davidson engines, DC V-Twin can help you with that special project. Just look below for other applications we can help you with.