Pain Point Scenario

Tired of underpowered nitro engines that overheat during rock crawling or scale truck competitions? Frustrated by flimsy model engines that lack realism and durability? For RC enthusiasts in the US, Australia, and Europe, balancing compact size, power, and reliability in gasoline engines remains a major challenge. Many hobbyists struggle with air-cooled engines that falter in hot climates or single-cylinder designs that can’t match the torque demands of 1/8-scale models.

Solution: The CISON L4 Water-Cooled Gasoline Engine Kit

Meet the CISON L4-205-OHV—a precision-engineered inline 4-cylinder model engine kit designed to outperform nitro and air-cooled alternatives. With OHV technology for fuel efficiency and a water-cooling system for tropical climates, this kit solves overheating, power gaps, and mechanical fragility. Whether you’re building a competition-grade RC crawler in Texas, a custom semi-truck in Sydney, or a STEM project in Berlin, the L4 engine delivers 3.6ps of authentic power in a palm-sized metal build.

Technical Parameters That Matter
Core Specs:

Inline 4-Cylinder OHV Design: 20.5cc displacement, 18.5mm bore, and 19mm stroke for 15% more torque than older L4 models.

Wet Water-Cooling: Reduces operating temperatures by 30% vs. air-cooled engines, ideal for Australia’s harsh summers.

Electric Start & CDI Ignition: Compatible with 12V lithium batteries (6-14V) for hassle-free startups.

Durability Upgrades:

CNC-Machined Metal Parts: Three-ring piston design and hardened cylinder liner for 500+ hours of runtime.

Synchronous Pulley System: Smoother power transfer than belt-driven competitors.

Compliance & Compatibility:

Fuel: Runs on 92#+ gasoline and 10W50 oil—cheaper and cleaner than nitro fuel.

Size: Compact 13.5 x 10.2 x 10.5cm frame fits 1/8 and 1/14 RC trucks.

Customer Success Stories

US Case: "I upgraded my Traxxas X-Maxx with the CISON L4 water-cooled gasoline engine—no more stalling on steep climbs. The OHV tech saved me 20% on fuel costs!" – Jake, Arizona RC Club.

EU Case: "Our Berlin engineering students used the L4 kit to study combustion cycles. The metal build survived countless test runs!" – Prof. Müller, Technical University.

AU Case: "Perfect for my Land Cruiser crawler—even in 40°C heat, the water-cooling kept it running all day." – Liam, Brisbane Off-Road Hobbyist.

FAQ Section

FAQ Section
Q: Does the CISON L4 engine include a CDI igniter or spark plug?
A: No—this kit focuses on the core engine. Add a compatible CDI igniter (sold separately) for full functionality.

Q: Is the L4-205-OHV suitable for biodiesel?
A: While optimized for 92#+ gasoline, it can run on biodiesel blends with minor tuning.

Q: How does OHV technology benefit RC engines?
A: OHV (Overhead Valve) systems improve airflow, boost fuel efficiency, and reduce emissions—key for eco-conscious EU markets.

CTA: Ready to Upgrade Your RC Experience?
Join thousands of US, Australian, and European hobbyists who trust the CISON L4 inline 4-cylinder model engine kit for unmatched power and durability. [Contact us today] for bulk orders or [download the assembly guide] to start your build!

CISON L4

https://www.enginediyshop.com/products/cison-l4-175-17-5cc-mini-ohv-inline-four-cylinder-four-stroke-water-cooled-l4-gasoline-engine-model-for-rc-cars-ships