How Much Hp Does A 117 Harley Have – The Real Answer
You’re looking at about 94 horsepower from the Milwaukee-Eight 117 engine, delivering robust torque peaking at 118 lb-ft around 3,250 rpm. This powerplant offers a smooth, linear power curve with strong low-end surge and consistent high-rpm performance. That makes acceleration immediate and controlled.
Compared to previous models, it boosts both horsepower and torque significantly, enhancing responsiveness and ride quality. There’s much more to explore about its engineering and real-world impact on Harley’s lineup.
What’s Inside the Milwaukee-Eight 117 Engine?
Although the Milwaukee-Eight 117 engine is often celebrated for its raw power, understanding its internal specifications reveals why it performs so effectively. You’ll find a 117 cubic inch (1,923cc) displacement with a bore of 103.5 mm and a stroke of 114 mm, creating a robust foundation for performance.
This air-cooled engine uses four valves per cylinder and operates at a compression ratio of 10.2:1, optimizing combustion efficiency.
It delivers peak torque of 118 lb-ft at 3,250 rpm, ensuring strong low-end and midrange response.
The powerband is particularly linear, maintaining torque over 100 lb-ft from 2,700 to 4,900 rpm. These precise engineering choices enable the Milwaukee-Eight to balance horsepower and torque for smooth, reliable output.
How Much Horsepower Does the 117 Harley-Davidson Engine Deliver?
You’ll find the Milwaukee-Eight 117 engine delivers peak horsepower close to 94 hp, and it hits that around 4,850 rpm.
What’s great about this engine is how it balances strong top-end power with plenty of torque down low. That means you get a smooth and responsive ride whether you’re cruising or accelerating hard.
Knowing this helps you understand how the 117 engine turns raw power into a really enjoyable riding experience.
Peak Horsepower Output
When you examine the Milwaukee-Eight 117 engine, you’ll find it delivers a peak horsepower of about 94.2 hp at 4,790 rpm, confirmed by rigorous dyno testing. This output marks a significant improvement over the Milwaukee-Eight 114, offering riders enhanced top-end performance.
The engine’s extremely linear power delivery guarantees smooth, predictable acceleration, making it ideal for various riding conditions.
Whether you’re handling a new account or pushing a Harley-Davidson Breakout, you’ll appreciate the 117’s balance of robust torque and high horsepower. This precise engineering allows for consistent power output without abrupt surges, giving you control and confidence.
The 117’s peak horsepower reflects Harley-Davidson’s commitment to combining traditional V-twin character with modern performance standards.
Power Curve Characteristics
Beyond its peak horsepower, the Milwaukee-Eight 117 engine delivers a smooth and linear power curve that really defines its performance character. You’ll notice horsepower steadily climbs from idle, surpassing 90 hp between 4,600 and 5,750 rpm. This creates a consistent and usable powerband.
This linear progression supports seamless acceleration without any abrupt surges or dips. The engine maintains high horsepower right up to its redline near 5,900 rpm, which ensures robust roll-on power during spirited riding.
Dyno tests confirm that the 117 engine sustains substantial horsepower across a broad rpm range. This really highlights its high-performance capabilities.
This kind of power delivery makes it responsive and predictable, so you can exploit the engine’s full potential throughout the rev range.
Real-World Performance
Although the Milwaukee-Eight 117 engine’s peak horsepower hovers just under 94, its real-world output delivers consistent and robust power that riders can rely on. Dyno tests confirm it produces approximately 93.8 hp at 4,850 rpm, with the 2023 Breakout model reaching 94.2 hp near 4,790 rpm.
This engine maintains over 90 hp across a broad range, from 4,600 to 5,750 rpm, ensuring linear, predictable power delivery. You’ll experience strong torque that supports smooth acceleration and high-performance riding without abrupt surges.
This consistency helps you harness nearly 94 horsepower in everyday conditions, proving the Milwaukee-Eight 117’s capability beyond peak numbers. Essentially, the engine’s real-world performance balances power and control, delivering the high-performance output Harley-Davidson designed for serious riders.
How Torque and Horsepower Work Together in the 117 Engine
You’ll notice the 117 engine’s torque curve delivers a strong, consistent pull from low to mid rpm, which means you get immediate responsiveness right when you need it.
Then, as you start to increase the rpm, the horsepower kicks in and peaks around 4,850. This helps the engine sustain power at higher speeds.
Torque Curve Dynamics
When you examine the Milwaukee-Eight 117 engine’s torque curve, you’ll see it delivers over 100 lb-ft of torque starting at around 2,700 rpm and maintains that level up to about 4,900 rpm. This broad torque plateau guarantees you have strong, consistent pulling power across the midrange, essential for both acceleration and cruising flexibility.
The torque output directly influences horsepower, which rises linearly with engine speed, reflecting a smooth and predictable powerband. This synergy between torque and horsepower means you can rely on seamless throttle response without sudden dips or spikes in power.
The engine’s design prioritizes this balance, allowing you to experience versatile performance that adapts well to varied riding conditions. That makes the 117 not just powerful but also remarkably controllable.
Horsepower Peak Range
How do torque and horsepower interact to define the Milwaukee-Eight 117 engine’s performance? This engine delivers peak horsepower of about 93.8 hp at 4,850 rpm, while torque peaks earlier at 108 lb-ft around 3,590 rpm.
You’ll notice torque remains strong, above 100 lb-ft, between 2,700 and 4,900 rpm, providing a broad, usable powerband.
As rpm climbs, horsepower rises linearly, reaching its maximum near 4,850 rpm. This harmonious interaction means you get strong low-end and midrange torque for immediate throttle response, with horsepower building smoothly for sustained acceleration.
Understanding this relationship clarifies why the 117 offers both powerful initial pull and high-rpm strength. It’s a responsive, well-balanced engine across its peak horsepower range without sacrificing torque availability.
Powerband Performance Balance
The Milwaukee-Eight 117 engine balances torque and horsepower to create a powerband that delivers both immediate response and sustained acceleration. You’ll experience 108 lb-ft of torque at 3,590 rpm, providing strong low-end pull and maintaining over 100 lb-ft from 2,700 to 4,900 rpm.
This torque curve ensures quick throttle response off idle and flexible performance across varied riding conditions.
Meanwhile, horsepower peaks at 93.8 hp at 4,850 rpm and stays above 90 hp between 4,600 and 5,750 rpm, supporting sustained power at higher revs. Dyno results confirm this well-matched torque and horsepower delivery.
This allows you to smoothly shift from cruising speeds to aggressive acceleration without power dips.
All in all, the 117 engine’s powerband is both versatile and efficient. It’s designed to give you a thrilling ride no matter the situation.
Dyno Test Insights on 117 Engine Power and Torque
Although rated as a 117 cubic inch powerhouse, the Milwaukee-Eight 117 engine produces about 93.8 horsepower at 4,850 rpm on the dyno. It delivers a peak torque of 108 lb-ft near 3,590 rpm. These figures reveal key performance traits you’ll appreciate.
The engine maintains over 100 lb-ft of torque from roughly 2,700 to 4,900 rpm, ensuring strong low-end and midrange pull. Its consistent, linear powerband supports smooth acceleration and sustained throttle control without abrupt surges.
Dyno results highlight robust top-end power and the capability to wind gears longer, enhancing overall rideability and responsiveness. Understanding these dyno insights helps you grasp how the 117 balances torque and horsepower for versatile, confident riding dynamics.
How the 117 Engine Boosts the 2023 Breakout and Low Rider ST
You’ll notice the Milwaukee-Eight 117 engine elevates the 2023 Breakout and Low Rider® ST by delivering a peak of 94.2 horsepower at 4,790 rpm in the Breakout, paired with enhanced torque throughout the rev range.
This increased displacement amps up both top-end speed and low-end torque, giving you a more aggressive and responsive ride.
The Low Rider® ST harnesses this power within a sporty chassis, putting the focus on high-performance handling.
The 117’s strong, linear power delivery ensures smooth acceleration and effortless cruising.
It optimizes throttle response across all kinds of riding conditions.
Overall, the 117 engine seriously upgrades the Breakout and Low Rider® ST’s performance, balancing raw power with refined control.
It’s all about enhancing your ride in a way you can really feel and measure.
Riding Impressions: What the 117 Harley-Davidson Engine Feels Like
When you twist the throttle on the Milwaukee-Eight 117, you immediately feel its strong low-end torque surge, delivering over 100 lb-ft from about 2,700 rpm for instant acceleration. This engine offers a smooth and linear powerband, making throttle response precise and predictable across low to mid-range speeds.
You’ll notice a distinctive “pop” at low revs, adding to its aggressive character.
Three key riding impressions stand out:
- Confident throttle control with seamless power delivery
- Strong, immediate acceleration that boosts rider confidence
- A responsive engine note that enhances the sensation of power off idle
Comparing the 117 Engine to Previous Harley Models
The Milwaukee-Eight 117 engine builds on the strengths you experience with its throttle response by delivering a noticeable jump in power and torque compared to previous Harley models. You get 94.2 hp at 4,790 rpm, which is an increase from the Milwaukee-Eight 114. The displacement grows from 114 to 117 cubic inches, enhancing overall output.
Peak torque rises to 118 lb-ft at 3,250 rpm, improving low-end grunt and rideability. This means you’ll feel stronger pulls and smoother rides, especially when you need that extra push.
| Engine Model | Horsepower (hp) | Peak Torque (lb-ft) |
|---|---|---|
| Milwaukee-Eight 103 | ~85 | ~100 |
| Milwaukee-Eight 114 | ~90 | ~110 |
| Milwaukee-Eight 117 | 94.2 | 118 |
This clear progression shows how the 117 refines Harley’s powertrain for stronger, more linear performance. It’s all about giving you a better, more responsive ride every time you twist the throttle.
Why the Milwaukee-Eight 117 Harley-Davidson Engine Is a Game-Changer
Although many engines offer power, few deliver the combination of torque, responsiveness, and smooth power delivery found in the Milwaukee-Eight 117. This engine pushes Harley-Davidson’s performance envelope with its 117 cubic inch displacement, producing up to 94.2 horsepower and a peak torque of 118 lb-ft at 3,250 rpm.
Here’s why it’s a game-changer:
- Impressive Low-End Torque: The engine’s design guarantees strong torque from low rpm, which means better acceleration and control right when you need it.
- Linear Power Curve: You get consistent, smooth power delivery that really improves ride quality and throttle response.
- Dyno-Proven Performance: Verified roll-on and top-end power make it reliable for all kinds of riding conditions.
This combination elevates your riding experience. It embodies true American muscle with advanced engineering precision.
Frequently asked questions
What Is the Fuel Efficiency of the Milwaukee-Eight 117 Engine?
You can expect the Milwaukee-Eight 117 engine to deliver around 40-45 miles per gallon under ideal conditions. However, your actual fuel efficiency will depend on factors like riding style, load, and terrain.
Aggressive acceleration or heavy loads will definitely lower your MPG.
To get the best fuel economy, make sure you keep up with regular maintenance like oil changes and engine tuning.
This engine is all about power, so fuel efficiency isn’t really its strongest suit. But with some care, you can still make it run as efficiently as possible.
How Often Does the 117 Engine Require Maintenance?
You’ll want to pamper your Milwaukee-Eight 117 like a diva, with oil changes every 5,000 miles because it demands nothing less. Check spark plugs and adjust valves every 10,000 to 15,000 miles, keeping the engine singing smoothly.
Don’t forget the air filter every 5,000 to 10,000 miles, depending on how much dirt you’re riding through.
Regularly inspect your drive belt or chain tension and lubrication to avoid any unexpected drama on the road.
Taking these steps will keep your engine running strong and smooth, so you can enjoy every mile without worry.
What Is the Weight of the 117 Engine?
The 117 Harley-Davidson Milwaukee-Eight engine weighs about 146 pounds (66 kilograms). This weight plays a key role in your bike’s stability and handling, contributing to a solid ride quality.
While the exact weight might shift slightly based on your model’s specific setup and accessories, it generally aligns with other large-displacement V-twin engines in Harley’s lineup.
Understanding this helps you grasp how the engine impacts your bike’s overall dynamics.
Are There Any Common Issues With the Milwaukee-Eight 117 Engine?
Yes, you might encounter some common issues with the Milwaukee-Eight 117 engine. Early crankshaft bearing wear has been reported, along with occasional oil leaks near the primary cover and cylinder heads.
You could also experience electronic sensor faults that affect performance and noticeable engine vibration due to balancing. Staying on top of regular maintenance and software updates will help you avoid or minimize these problems and keep your engine running smoothly.
Can the 117 Engine Be Upgraded for More Power?
Yes, you can upgrade the 117 engine for more power. By installing high-flow air intakes, performance exhausts, and engine tuners, you’ll boost horsepower beyond stock levels.
Internal modifications like larger pistons, upgraded camshafts, and ECU remapping further enhance output.
Aftermarket kits tailored for the Milwaukee-Eight 117 let you push power well past 100 hp when combined with proper tuning and supporting components.
Final Thought
You’re holding the throttle to a roaring beast, the Milwaukee-Eight 117. Like a finely tuned engine turning raw fuel into unstoppable power, this Harley delivers horsepower that’s more than just numbers. It’s a pulse racing through every twist of the road.
Torque and horsepower dance in perfect harmony, propelling you forward with precision and strength. Riding the 117 is like mastering a symphony of engineering. Power meets control in one relentless, thrilling ride.
