Everything You Need to Know About the RUIFEIYA V10 Engine Model
Welcome & Project Launch
Thank you for your interest in the RUIFEIYA V10-150 Engine Model! We’re thrilled to finally release this highly anticipated project. This is a very limited edition release—only 20 units have been produced—and 4 units have already been reserved, leaving just 16 available.
This engine isn’t just a scale model—it’s a fully functional, precision-engineered V10, four-stroke engine, designed over five years by a team with decades of technical experience. Every component has been crafted to give you an authentic mechanical experience, from the 14,000 RPM high-speed capability to the dual oil pump system ensuring smooth operation.
Before you start operating your engine, please read this guide carefully. Think of it as a conversation: we’ll walk you through every critical step, answer common questions, and share tips and warnings to help you enjoy your V10 safely and confidently.
RUIFEIYA V10-150 Engine Technical Specifications
| Parameter | Details |
|---|---|
| Model | V10-150 |
| Assembly | Fully Assembled |
| Net Weight | 12 kg |
| Dimensions (L × W × H) | 253 × 231 × 245 mm |
| Engine Configuration | V10, 4-Stroke, DOHC (Double Overhead Camshafts), 40 valves |
| Piston Type | Three-Ring Pistons for realistic compression and reduced oil consumption |
| Displacement | 150 cc (10 × 15 cc per cylinder) |
| Bore × Stroke | 27.0 mm × 27.0 mm |
| Carburetion | Dual Carburetors with adjustable fuel mixture |
| Maximum RPM | 13,000 rpm |
| Power Output | 16 HP |
| Cooling System | Water-cooled with external centrifugal pump and enlarged intake/exhaust channels |
| Lubrication | Dual Oil Pumps: High-pressure for moving parts, low-pressure returns oil to reservoir |
| Ignition | CDI (Capacitor Discharge Ignition) with dual Hall sensors |
| Starting Method | Electric Start (requires external battery and ESC) |
| Fuel Type | 92# Pure Gasoline |
| Brand |
RUIFEIYA
|
Design, Performance & Craftsmanship
1. Innovative Design
The V10-150 is a 1/4 scale replica of a real V10 four-stroke engine, designed not only to look realistic but to operate just like the real thing.
DOHC with Four Valves per Cylinder: Replicates true automotive engine principles.
Three-Ring Pistons: Ensures tight compression, reduces oil consumption, and delivers smooth motion.
Dual Oil Pumps: One high-pressure pump lubricates all moving parts; a low-pressure pump returns oil to the reservoir.
Water-Cooling System: An external centrifugal pump combined with enlarged intake and exhaust channels provides stable performance even at high RPMs.
Every feature is crafted to give you a realistic engineering experience—this is more than a model; it’s a hands-on demonstration of precision mechanics.
2. High-Performance Features
Compression Ratio: 13.7:1, offering realistic power and responsiveness.
Maximum RPM: 14,000, simulating high-speed rotational dynamics.
Power Output: 16 HP—enough to drive compatible 1/4 scale cars, 1/5 scale trucks, or model boats.
Operational Realism: Pistons, valves, and timing belts move in perfect synchronization, producing authentic sound and motion.
Adjustable Carburetors & CDI Ignition: Let you experience real-world tuning, including fuel mixture, timing, and startup procedures.
3. Craftsmanship & Precision Manufacturing
Over 300 machined metal components, each produced with tight tolerances for perfect fit and smooth operation.
High-quality materials prevent deformation under high temperatures and stress.
Critical components like the crankshaft, camshaft, and pistons are precision-machined and hand-checked for alignment.
Rigorous testing: Every engine is fully assembled, lubricated, and tested—including ignition and water-cooling systems—before shipping.
4. Collector Value & Limited Edition
This is a highly exclusive engine: only 20 units exist in this initial release, and 4 have already been pre-ordered. Its rarity and craftsmanship make it a coveted piece for collectors and enthusiasts who value realistic mechanical function and engineering excellence.
Preparing Your Engine for Use
Even though the RUIFEIYA V10-150 comes fully assembled, you’ll need to connect a few essential components before starting:
External oil tank, oil filter, and oil cooler
Water-cooling system (radiator and pump)
Fuel tank and fuel lines
CDI ignition system
150A ESC and a compatible battery (5S–6S recommended)
Think of this like a real V10 engine—properly connecting these systems is critical for:
Lubrication: protecting every moving part
Cooling: preventing overheating at high RPM
Fuel delivery: smooth ignition and combustion
Ignition timing: correct cylinder firing to avoid damage
Step-by-Step Startup Guide
1. Install the Cooling System
Ensure the water radiator is at least 200×100 mm.
Fill the system with water or water-based coolant. Do not overfill.
2. Prepare the Oil System
Connect high- and low-pressure oil lines correctly:
High-pressure feeds critical parts
Low-pressure returns oil to the reservoir
Add at least 200 mL of fully synthetic 5W30 or 10W40 oil
3. Fuel System Setup
Use pure 92# gasoline only
Connect fuel lines carefully—avoid air bubbles, as they can prevent startup
4. Priming the Carburetor
Use the built-in primer bulb
Hold the intake port with your finger while slowly cranking the starter
Release your finger, then fully engage the starter to ensure proper fuel-air mixture
5. Starter Operation Tips
Do not hold the starter for more than 5 seconds at a time
If the engine doesn’t start, wait 15 seconds before trying again
Avoid starting when the engine is flooded (too much fuel) or dry (too little fuel)
Understanding the CDI Ignition System
The V10-150 uses a CDI (Capacitor Discharge Ignition) system with two Hall sensors (camshaft and flywheel). Correct setup ensures the proper firing sequence and peak performance.
Cylinder Firing Order:
Left bank (front to back): 1–2–3–4–5
Right bank (front to back): 6–7–8–9–10
CDI Wiring Orientation:
Module facing down: left bank 1–5, right bank 6–10
Module facing up: left bank 1–5, right bank 6–10
⚠️ Important: Hall sensors are pre-adjusted. Never change their angle—incorrect adjustments can cause misfires or engine damage.
Carburetor Fine-Tuning
Main fuel needle: Adjusts overall fuel mixture. Start at 1.5 turns out
Idle needle: Adjusts low-speed operation. Start at 1.5 turns out
Rich vs. Lean:
Too rich → engine may flood, stall, or smoke
Too lean → engine may misfire, run hot, or fail to start
Adjust gradually, observe engine behavior, and allow cooldown periods between attempts.
Safety & Best Practices
The engine reaches high temperatures—avoid touching exhaust, cylinders, or belts
High-speed rotating components can eject parts—keep a safe distance
Fuel and oil are flammable—operate in well-ventilated areas only
Break-in: new engines require ~25 hours at idle or low RPM before full-speed operation
If unsure about connections or operation, have a second person assist
Maintenance & Care: Keep Your V10-150 Running Smoothly
Owning a RUIFEIYA V10-150 is exciting—but it’s also a responsibility. Think of it as a high-performance sports car in miniature: it needs attention, care, and proper handling. Here’s everything you need to know to keep it performing at its peak.
1. Routine Maintenance
Oil & Lubrication
Always use fully synthetic 5W30 or 10W40 oil for all lubrication points. Avoid additives unless specified.
New engines: Use break-in oil (mix 85% standard oil + 15% gasoline) for the first 25 hours. This ensures smooth piston-ring seating and prevents early wear.
Oil change frequency: Every 25 hours of operation, or sooner if you notice discoloration, metal particles, or unusual odor.
Pay attention to oil filters; clean or replace regularly. The high-pressure oil pump ensures lubrication for crankshaft, camshafts, and valves—don’t compromise it.
Cooling System
The engine uses a water-cooling system with an external centrifugal pump. Ensure water flows freely through radiator and engine channels.
Keep coolant levels adequate at all times. Use only pure water or approved water-coolant solutions.
Check for leaks, pump vibration, or unusual noises; address issues before starting.
Fuel System & Carburetor
Empty fuel lines after use. Residual gasoline can degrade gaskets and clog jets.
Inspect fuel filters monthly.
Prime carburetors before starting to fill fuel lines without introducing air bubbles.
Ignition System (CDI & Hall Sensors)
The CDI module is factory-calibrated. Only check for loose wires or corrosion.
Ensure Hall sensors (camshaft and flywheel) are correctly positioned; never adjust unless officially guided.
2. Component Inspection
Belts & Pulleys: Check for wear, fraying, or slack before each session.
Fasteners: Vibration can loosen bolts—verify torque periodically.
Spark Plugs: Inspect every 10–15 hours. Replace if signs of wear, fouling, or damage appear.
Tip: Keep a maintenance log: track RPM ranges, fuel mixture settings, oil changes, and any unusual noises. Over time, this helps you fine-tune performance.
3. Parts Replacement
Even with proper care, some components wear naturally:
Consumables: Spark plugs, belts, oil and fuel filters—replace on schedule.
Wear-prone metal parts: Pistons, bearings, and crankshafts are precision-made. Replacement is rare but possible under extreme conditions—always contact RUIFEIYA support first.
Electronic components: CDI module, Hall sensors, wiring—replace only with genuine parts.
4. Storage Guidelines
Proper storage protects your engine during downtime.
Short-term (1–3 months)
Clean engine surfaces and rotate the crankshaft manually.
Apply a thin coat of rust-preventive oil on all metal surfaces.
Loosen belts slightly; cover engine with a breathable cloth.
Disconnect power and cover exposed pipes and air intakes with moisture-resistant material.
Long-term (3 months+)
Run engine at idle for 1–1.5 minutes before stopping.
Drain oil completely to prevent corrosion. Coolant can stay if stored in a dry environment.
Tag engine with a “Do Not Disturb” note for safety.
Restarting after storage
Remove covers and reconnect all pipes and electrical lines.
Prime the fuel system and check coolant levels.
Apply fresh oil and rotate the flywheel 3–5 times by hand to confirm smooth movement.
For engines stored more than 2 years, a full professional inspection is recommended.
5. Troubleshooting & Tips
Sometimes things go wrong, even with careful preparation. Here’s how to diagnose common issues:
Engine won’t start:
Check fuel lines for air bubbles.
Verify battery voltage for starter.
Confirm CDI wiring and Hall sensor connections.
Engine stalls at idle:
Adjust carburetor idle needle slowly.
Check lubrication and fuel mixture.
Unusual noise or vibration:
Stop operation immediately.
Inspect belts, pulleys, and fasteners.
Low compression / leaks:
Add a small amount of oil to cylinders and rotate crankshaft to reseat piston rings.
Warranty & After-Sales Support
At RUIFEIYA, we take every engine seriously. Your V10-150 is not just a model—it’s a precision-engineered machine, and we want you to enjoy it safely and reliably. Here’s what you need to know about warranty, support, and how we handle after-sales service.
1. Pre-Shipment Testing
Every engine is fully assembled and rigorously tested before shipment.
Tests include mechanical operation, lubrication, water-cooling, fuel delivery, and CDI ignition checks.
Only engines that pass all checks leave the factory, ensuring you receive a ready-to-connect, high-performance model.
2. Delivery & Inspection
Upon receiving your engine, inspect it immediately.
If you notice damage from shipping, document it with photos and notify both the courier and RUIFEIYA within 24 hours.
This ensures prompt support and proper handling of any delivery issues.
3. Operational Issues
If your engine shows functional issues, contact us within 7 days for coverage.
Issues caused by misuse, modifications, or improper maintenance are not covered.
Our team is ready to provide guidance for troubleshooting, repairs, or part replacement.
4. Repairs & Replacement
We provide genuine RUIFEIYA parts and professional labor.
Shipping costs depend on fault location and responsibility:
Factory-related issues: Stirlingkit covers parts, labor, and return shipping.
User-related issues: Parts and labor covered; shipping is the customer’s responsibility.
Electronic components (CDI module, Hall sensors) must only be replaced with authentic parts.
5. Limited Edition Support
- Only 20 units produced in this initial release.
- 4 units already reserved; 16 units remain available.
- Support priority goes to the initial batch, ensuring collectors and early adopters get dedicated service.
- Owning a V10-150 is a privilege—this limited availability increases its collector value while also guaranteeing meticulous support.
6. Safety & Responsibility
RUIFEIYA V10-150 is intended for model enthusiasts and collectors who follow the instructions carefully.
Engine use must comply with local safety regulations.
RUIFEIYA is not responsible for injuries or property damage caused by misuse, unsafe operation, or unauthorized modifications.
Always follow proper break-in, lubrication, cooling, and ignition procedures.
7. How to Get Help
Contact Stirlingkit directly via email or through our official store support channels.
Include photos, serial numbers, and a brief description of the issue.
Our support team will guide you through troubleshooting, part replacement, or service arrangements.
Tip: Keep your engine’s documentation, maintenance logs, and parts records handy. This helps speed up service and ensures your V10-150 stays in peak condition.
FAQ – Everything You Need to Know Before Ordering the RUIFEIYA V10-150
Q1: How many units are available?
A1: This is an extremely limited release. Only 20 units of the RUIFEIYA V10-150 have been produced for this batch, and 4 are already reserved. That means there are just 16 units left. Once these are sold out, the next production run will take at least 6 months, due to the engine’s high level of complexity and precision machining.
Q2: When will the next batch be available if it’s sold out?
A2: If this first run sells out, the next batch will not be ready until early next year (around March 2026). This is not a mass-produced item; every part requires careful machining, assembly, and testing, which takes much longer than standard production.
Q3: How much does the engine cost?
A3: The RUIFEIYA V10-150 is priced at $8,000 USD. This reflects its extraordinary craftsmanship, materials, and the fact that it is one of the most advanced model engines currently available.
Q4: How do I reserve a unit?
A4: It’s simple: contact Stirlingkit directly and we will secure your slot on the reservation list. The earlier you reserve, the better your chances of securing one of the 16 units. Filling out the optional survey also helps us understand your needs better, but it’s not required to lock in your order.
Q5: What happens if I cancel my reservation?
A5: If you cancel, your slot will be passed on to the next customer in line. Should you wish to reorder later, you’ll need to rejoin the queue. This ensures fairness and transparency for all collectors.
Q6: How will my engine be shipped?
A6: All orders include insured international shipping and are duty-free/tax-free for customers. Each package is securely packed to withstand long-distance transport, with extra protection for fragile components.
Q7: Why should I buy from Stirlingkit?
A7: Stirlingkit is more than just a seller — we are engine enthusiasts ourselves, and we’ve been serving this community for many years. Collectors worldwide trust us for our responsibility, passion, and commitment.
Here’s what you get when buying from Stirlingkit:
Community-Driven – We’re hobbyists too, so we understand your needs and listen to your feedback.
Trusted Worldwide – Customers know us as reliable, responsible, and caring.
3-Year Protection – Extended coverage, insured shipping, and full tax inclusion.
Extra Quality Control – Every engine goes through a second round of inspection at our warehouse before being shipped.
Direct Support – If any issue arises, Stirlingkit will handle it directly with the manufacturer on your behalf. You will never be left to solve problems alone.
Lifetime Commitment – As long as you’re a Stirlingkit customer, we’ll stand behind you with lifetime service, even beyond warranty.
Guaranteed Allocation – Orders are processed in sequence, with VIP members enjoying priority access.
With Stirlingkit, you’re not just buying a model engine — you’re joining a global community supported by people who share your passion.
Q8: What kind of after-sales service can I expect?
A8: Stirlingkit provides 3 years of insurance coverage for every RUIFEIYA V10-150 purchased through us. This means:
Free repairs or replacement of parts for any verified quality issues.
Full guidance and support throughout the process.
If repairs are needed, Stirlingkit coordinates everything with the manufacturer until the issue is fully resolved.
Q9: Are the engines checked before delivery?
A9: Yes. Every unit goes through two levels of inspection:
-
The manufacturer’s factory inspection.
-
Stirlingkit’s secondary inspection at our warehouse, where we verify ignition, lubrication, and mechanical operation before shipping.
Only engines that pass both checks are shipped out.
Q10: What’s Included in the RUIFEIYA V10-150 Engine Package?
Each package comes with all the essential components to prepare your engine for operation:
V10 Engine ×1
Spark Plugs ×10 （Free Gift）
High-Tension Coils ×11
Ignition Controller ×1
Oil Filter ×1
Fuel Inlet Hose ×1
Fuel Outlet Hose ×1
Water Inlet Hose ×1
Water Outlet Hose ×1
One-Way Check Valve for Water Inlet ×1
Water Inlet Elbow ×1
Water Outlet Elbow ×1
Timing Pulleys ×2
Paper User Manual ×1
Additional Items Required (Not Included):
150A Electronic Speed Controller (ESC) for engine start
Water radiator (240mm recommended)
Coolant tank
Fuel tank
Q11: Is this model suitable for beginners?
A11: The RUIFEIYA V10-150 is an advanced model intended for experienced collectors and hobbyists. Its structure and operation are almost identical to a real V10 engine, which makes it both challenging and rewarding. While beginners are welcome to purchase, we recommend some prior experience with model engines to get the best experience.
Q12: Why is production so limited?
A12: Each RUIFEIYA V10-150 requires hundreds of precision-machined parts and a long assembly/testing process. This is not a mass-production model. For this reason, only 20 units could be produced for the first batch. Future production runs are limited by the same complexity, which is why delivery takes at least 6 months.
Q13: What if I encounter problems years down the road?
A13: As long as you’re a Stirlingkit customer, we’ll be here for you. Even beyond the 3-year insurance, we offer lifetime support. Whether it’s troubleshooting, spare parts, or technical advice, we’ll assist you whenever you need it.
Q14: Can I open the engine to inspect or modify internal parts?
A: While the RUIFEIYA V10-150 is technically disassemblable, many internal components are pre-adjusted at the factory for optimal performance. Changing these can easily cause misfires or damage. For example:
Hall sensors (camshaft and flywheel) are set precisely for correct ignition timing. Altering them can cause misfires or engine failure.
Pistons, rings, and cylinder clearances are installed with tight tolerances for proper compression and smooth operation. Improper handling may reduce performance or increase wear.
High- and low-pressure oil pumps and lubrication channels are calibrated to ensure full lubrication at high RPMs. Disassembly or modification can compromise lubrication and damage the engine.
Tips for safe inspection:
Feel free to inspect external components, test systems, and learn about engine operation.
For internal inspections or modifications, always contact Stirlingkit support first. We provide guidance and approved procedures to keep your engine safe.
Film the entire setup, connection, and inspection process. This helps you:
- Remember the exact order of component connections (fuel lines, cooling, CDI, oil system).
-
Have a reference for troubleshooting or future maintenance.
-
Share with Stirlingkit support for faster, more accurate guidance.
Even experienced modelers benefit from a short video—it can save time and prevent mistakes when reassembling or checking the engine.
Takeaway: Following these guidelines protects your $8,000 investment, ensures reliable performance, and prolongs the life of your RUIFEIYA V10-150.
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