Toyan FS-V800WGPC vs. FS-V800G: What Makes the New Model Stand Out | Stirlingkit

Simon Posted on November 25 2024

TOYAN engines have always been famous for their precision design and excellent performance. The new FS-V800WGPC is a comprehensive upgrade based on the classic FS-V800G. Below is a detailed comparison of the two engines. Let's explore their differences together.

FS-V800G (Old) vs. FS-V800WGPC (New)

Feature	FS-V800G (Old)	FS-V800WGPC (New)
Model	FS-V800G	FS-V800WGPC
Dimensions (mm)	123.42×32.00×127.30	177.00×173.45×153.89
Weight (kg)	2.05	4.8
Displacement (cc)	28cc (3.5cc×8)	28cc (3.5cc×8)
RPM Range	3000-12500	1950-8650
Valve Mechanism	SOHC	OHV
Piston	Single Ring	Double Ring (1 Air + 1 Oil)
Crankshaft	Integrated Crankshaft	Upgraded High-Strength Crankshaft
Lubrication Method	Mixed Oil Lubrication	Mixed Oil Lubrication
Cooling Method	Mechanical Water Cooling	Mechanical Water Cooling
Water Pump	Gear Pump	Dual Gear Pump
Exhaust Pipe	Integrated Exhaust Manifold	Segmented Exhaust Pipe
Timing Belt Drive	Tension-Driven Timing Belt	PU Round Belt Drive
Carburetor	Dual Carburetors	Single Carburetor with Clear Fuel Bulb
Air Filter	Standard Air Filter	Circular Mesh Air Filter (One-Touch Oil Absorption)
Processing	Full CNC	Casting + CNC
Ignition System	Ignition Module	CDI Ignition with Distributor
Starter	Standard Igniter + Brushless Starter	High-Frequency CDI + Relay
Cooling Radiator	Standard Radiator	High-Performance Finned Radiator × 2
Base	Iron/Aluminum Alloy Base	Premium Wooden Base

Key Differences Between the New and Old Toyan V8

The newly upgraded Toyan V8 FS-V800WGPC not only boasts a more refined design but also significantly improves on several key aspects compared to the old model. Below is a detailed comparison to highlight the improvements made to the new model:

1. More Compact and Lightweight Design

New Model: More compact and lighter, with dimensions of 177.00×173.45×153.89mm and weighing just 4.8kg, offering better stability and performance.
- Old Model: Larger and heavier, with a less manageable size and weight that could impact handling and stability.

2. Optimized Performance Parameters
- Displacement: Both models have a consistent 28cc (3.5cc×8) displacement for strong power output.
- RPM Range:
- Old Model: 3000-12500rpm, designed for high-speed operation.
- New Model: 1950-8650rpm, optimized for smoother low-speed operation, resulting in better fuel efficiency and stability.

3. Internal Configuration Improvements
- Valve Mechanism: The new model upgrades from SOHC (Single Overhead Cam),pushrod configuration, to OHV (Overhead Valve) for improved airflow control and combustion efficiency.
- Piston: The new model features a double-ring piston design (1 air ring + 1 oil ring), improving sealing and lubrication compared to the old single-ring piston.
- Crankshaft: The new model uses a high-strength, one-piece integrated crankshaft with five-point support and a 90° cross-plane design, ensuring enhanced durability, stability, and precision.

4. Enhanced Cooling and Lubrication Systems
- Cooling Method: Both models use mechanical water cooling, but the new model features dual gear pumps for superior cooling efficiency. This dual independent cooling system significantly extends runtime and improves heat management.
- Lubrication Method: The classic mixed-oil lubrication design is retained in both models, ensuring smooth and reliable engine operation.

5. Exhaust, Carburetor, and Air Filter Upgrades
- Exhaust System: The new model uses a segmented exhaust pipe for better heat dissipation and easier maintenance, unlike the integrated exhaust manifold in the old model.
- Carburetor and Air Filter:
- Carburetor: The new model features a single carburetor with a transparent fuel bulb, making it easier to monitor fuel levels.
- Air Filter: The new model comes with a circular mesh filter that supports one-touch oil absorption and easier cleaning. It also includes a cold-start cover to improve performance during cold starts.

6. Upgraded Electric Start System
The new model features a reinforced starter shaft with a reduced-speed gear and added relay for better protection against overload, making the electric start more reliable and smoother.

7. Distributor Optimization
- Old Model: The dual floating distributors often caused misfires, spark skipping, and difficult adjustments with messy wiring.
- New Model: A single contact distributor with a V8-specific CDI allows for easier adjustments, cleaner wiring, and more stable, reliable performance.

8. Optional Accessories Upgrades
- Radiator: The new model offers an optional high-performance finned radiator for better cooling efficiency.
- Base: While the old model includes iron or aluminum alloy bases, the new model upgrades to a premium wooden base for a more refined look.

update 12.26

New Toyan V8 production images revealed.