Welcome back to The Parts Counter presented by Hot Bike Magazine. If you missed the last installment, our friends at Harley-Davidson sent us a whole batch of new Genuine Motor Parts and Accessories to install and evaluate on Thrashin Supply’s new 2024 Road Glide. This time, Harley sent us some great new components for Danny Wilson’s (aka The Motorwitch) new 2024 Street Glide. We headed to Danny’s Phoenix shop, Motorwitch Industries, to do the installation. 

Danny’s been working on Harley-Davidson motorcycles for over 25 years. He started as an H-D master technician and became so knowledgeable that The Motor Company hired him to train new techs at dealerships around the world, which he did for many years. Now, Danny’s got his own shop, Motorwitch Industries, and he has a great reputation of making motorcycles perform extremely well. He’s also a bit of a dyno-tuning guru and engine-building master. We hooked Danny up with the Long-Haul Touring package and some rad new Screamin’ Eagle components from Harley-Davidson’s Genuine Motorcycle Parts & Accessories catalog.  

The Long Haul Touring Accessories package includes everything you need for a long road trip: H-D Detachables Two-Up Tour-Pak Mounting Rack, 4-Point Docking Hardware Kit, Sundowner Seat, Mid-Frame Air Deflectors, Heel Shifter, Streamliner Passenger Footboard and Mount Kit. And while we were at it–and since Danny and his wife like to ride together–a color-matched Tour-Pak with the backrest pad was a great addition as well. Here’s a snapshot of the different components we installed.  

Because we were enhancing Danny’s Street Glide’s touring capabilities, we couldn’t forget about adding Harley’s new Embedded Navigation System. This upgrade is a digital download that is seamlessly integrated with Skyline OS and the new 12.3-inch TFT color touch screen display. It unlocks the new Infotainment system’s full potential with options like turn by turn navigation prompts and the Tour display, expanding the map to nearly 80% of the 12.3-inch screen. 

 Long-Haul Accessory Package, Tour-Pak:    

1. Long-Haul accessory Package – Black, Part Number: 50700117A
2. King Tour-Pak Backrest Pad – CVO Style, Part Number: 52300744
3. King Tour-Pak Luggage – (Color TBD), Part Number: 53001044(EYO)
4. Electrical Connection Kit, P/N 69203400
5. LED King Tour-Pak Run/Brake/Turn Lamp Kit, Part Number: 67801541
6. LOCK WITH 7586 (SPECIFY KEY NUMBER), 90300030
7. Harley-Davidson Embedded Navigation, Part Number: 76100034

For the Screamin’ Eagle Performance mods, we selected the following for Danny’s Street Glide: Screamin’ Eagle Stage II Kit, which includes a new cam, new pushrods, new lifters, and pushrod tube covers. We also opted for a new set of Titanium Slip-On Mufflers and a new Screamin’ Eagle High-Flow Air Filter and Air Cleaner Trim. Of course, we’d need to tune everything once those bits were installed, so we grabbed a Screamin’ Eagle Pro Street Tuner to tackle the job.  

The SE8-511 is a billet version of the camshaft installed in the ’24 CVO Road Glide ST. The later intake closing is an indication of a higher horsepower camshaft. It will pick up torque at higher engine speeds the later the intake closes. With increased valve lift to take full advantage of the port flow, overlap is also increased to take advantage of scavenging as well as manage residual fraction for combustion control.  

The Stage II Kit also includes the quick-install pushrods, which allow installation of the camshaft without removing the top end of the engine. This reduces mechanic time and cost significantly. The Screamin’ Eagle lifters are a great upgrade in this bike, too. They have floating axles on the roller, which allows the axles to move so that the needle bearings are not rolling across the same portion of the axle under high load. Ultimately, this improves roller and axle life significantly. 

For improved airflow and exhaust, we selected the new Screamin’ Eagle air cleaner because it includes a washable and reusable performance air filter designed to increase air flow. For exhaust, we went with the Screamin’ Eagle Extreme Flow Titanium Slip-On Mufflers because of the improved exhaust flow, significant weight reduction and a deep, sporty exhaust tone. Plus, the Forged Carbon Fiber end caps are just plain cool.  

To tune all these new components in perfect harmony, we grabbed Harley’s Screamin’ Eagle Pro Street Tuner, which is cool because you can easily tune via Bluetooth on your smartphone. and the Next generation performance tuning made even easier. Being 49-state emissions compliant the Screamin’ Eagle Pro Street Tuner allows you to adjust key parameters or simply upload the latest Engine Control Module (ECM) calibrations to match your bike’s state-of-tune and much more. Made for many different configurations, it was the perfect accompaniment for our performance combination.   

The Screamin’ Eagle components we installed were a great combination of improving overall power, and even better, the power delivery. We gained some horsepower and torque figures, but the overall powerband is consistent from idle to redline. In other words, that linear torque curve you’re seeing in the graph is a great visual into how the power delivery works in real time given these new modifications.   

Screamin’ Eagle Performance Components:  

1. Screamin’ Eagle Stage II Kit, Part Number: 92500133
2. Screamin’ Eagle High-Flow Air Filter and Air Cleaner Trim, Part Number: 29400494
3. Screamin’ Eagle Pro Street Tuner, Part Number: 41001141
4. Screamin’ Eagle Extreme Flow Titanium Slip-On Mufflers, Part Number: 64901365

SOURCES:  
Harley-Davidson Motor Company
Harley-Davison.com 

Motorwitch Industries
MotorwitchIndustries.com