Explore the Upgraded CISON L4 Engine Model: Key Improvements & Enhanced Performance

For model enthusiasts and engine aficionados who trust the reliability of the CISON L4, the long-awaited upgrade has finally arrived. This iconic inline four-cylinder engine has received a comprehensive upgrade—not only is its performance significantly improved, but its appearance has also undergone a stunning redesign. Let's take a look at the upgrades to the CISON L4:

📊 Old vs. New: CISON L4 Upgrade Comparison

⚡ Power Boost:

The most impactful upgrade lies under the hood (or rather, the cylinder head). We’ve expanded the bore and displacement from 20.5CC to a robust 26CC—a significant leap that translates to tangible performance gains.

🎨 Aesthetic Refresh: From Industrial to Iconic

Looks matter—especially when your engine is part of a showstopping build. 

🔵 Old Top Cover: Dull blue diesel-style lid that blended into the background.  

🔴 New Top Cover: Ditching the blue diesel aesthetic for a vibrant red顶盖 (top cover)—the most requested color among global RC enthusiasts. It adds a bold, high-performance vibe that makes the engine a showstopper in any build.

⚫ Old Cylinder Block: Plain black finish that felt industrial and understated.  

⚪ New Cylinder Block: Sleek silver (cylinder block) that adds a premium, polished look. It’s not just pretty—it highlights the engine’s CNC-machined precision.

🌟Exhaust Upgrade:

🔍Old Exhaust:The bulky "tractor chimney" design—fully functional but enormous—is unsuitable for all modification projects. It also takes up extra space and limits compatibility with cramped engine bays.

✨All-new exhaust system: One-piece integrated exhaust manifold. This is not just an aesthetic upgrade—it's a performance and practical enhancement.

🌟 Why This Upgrade Matters for Enthusiasts

The CISON L4 has always been a favorite among enthusiasts thanks to its OHV technology, water-cooling system, and durable CNC-machined parts. This upgrade continues that legacy, addressing user pain points (such as the bulky exhaust and limited power) and enhancing features users love. Whether you're an experienced tuner or an amateur just starting your first tuning project:

- High-performance users can directly obtain their dream 26cc displacement without any modifications.

- Aesthetically-minded users can get an engine that looks as good as it performs—no custom paint required.

- All users can benefit from a more versatile design, suitable for more tuning projects and running smoother.

🏆 Summary: The CISON L4 Engine is Now a Must-Have

The upgraded CISON L4 engine retains its consistent reliability while adding the power, stylish look, and practicality that enthusiasts have always desired. Whether you're upgrading your existing L4 engine or adding a new one to your collection, this engine proves that performance and aesthetics can be perfectly combined. 🛠️

The all-new CISON L4 is here—definitely worth the upgrade!