Hi-Po TECH – Boyesen Power X-Intake
We Gained 7 Horsepower on our 2013 Ultra!
By Tyler Greenblatt
Everyone remembers the x-wing fighter that Luke Skywalker piloted in his successful attack on the Death Star. In fact, the X-Wing was the high-performance fighter used by the Rebel Alliance throughout the Star Wars trilogy. Its performance was credited to the X-shaped wings that flanked its fuselage. Of course, this ignores the fact that there’s no atmosphere in space. The first Star Wars movie was released in 1977 and became a science fiction blockbuster.
What does any of this have to do with motorcycles? Well, over 35 years later, that tested and proven X-Wing technology is used by power provider Boyesen to add performance to Harley-Davidsons. While we will likely never be able to man the controls of a X-Wing fighter, we opted for the next best thing and installed Boyesen’s Power X-Intake (#PX-HBPK-01SC/$289.95) on a 2013 Ultra Limited. Those familiar with the Boyesen name may be aware that it makes an insert for carbs and throttle bodies called the Power X-Wing, a device that improves airflow through a carb or throttle body’s throat by speeding air up and straightening it out. That simple product can be installed with any air cleaner setup. It also comes built into the Power X-Intake we installed on our Limited.
The Power X-Intake comes as a complete bolt-on kit, which includes backing plate, filter, mounting hardware, and a chrome cover. If you want, you can also use your stock air cleaner cover, but we went with Boyesen’s chrome cover. We did this install with Rob of Rob’s Dyno in Gardner, Massachusetts. We also used this bike for a few other projects, one of which was a set of Wegner exhaust pipes. That article, with dyno chart, is featured in the January/February issue of Motorcycle Bagger. This Boyesen kit was installed before the Wegner exhaust system, so our baseline runs for this article are with the stock pipes and mufflers.
That said, our real wheel horsepower increase for just the Power X-Intake was 7 hp and 2 ft-lbs. of torque. And those increases are without installing a fuel tuner. The stock ECM was able to adapt to the new Boyesen X-Intake. While the Boyesen X-Wing actually needs air to perform, unlike its distant (in a galaxy far, far away) relative, the basic principles are there: velocity and laminar airflow. Perhaps the biggest (or littlest) similarity between the American Iron Magazine team and Star Wars is our very own Yoda in the form of Chris Maida, our wise and powerful editor. AIM
This article originally appeared in the February 2014 issue of American Iron Magazine, with step-by-step directions and photos. To order your copy, visit Greaserag.com.