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Performance Tuning Kits For Open Racing
The following are a list of "off the shelf" parts that can be easily fitted to the GX160/GX200 engine to improve performance. Although some of these modification are not legal for MSA racing (or clubs which adopt the Honda Regulations), if you just race for fun then adding one or a combination of these parts will improve performance. If you are unsure check out the Honda Regs here or discuss with your club scrutineer.
GX160 Performance Upgrade Stage 1
GX160 Performance Upgrade Stage 1
GX200 Camshaft
Smaller GX120 Fan (reduces drag)
GX200 Cylinder Head Gasket
GX200 Carb
De-Baffled Exhaust
G200 Valve Springs
Part Number: GX160_Performance_Kit_1
Our Price: £
Stock Available:
GX160 Performance Upgrade Stage 2
GX160 Performance Upgrade Stage 2
Re-profiled Camshaft (Cam #1)
GX200 Cylinder Head Gasket
Smaller GX120 Fan (reduces drag)
Milled 14cc Cylinder Head
De-Baffled Exhaust
GX200 Carb fitted with Air Filter Adapter and Air Filter
G200 Valve Springs
1:3 Ratio Rocker Arms
Part Number: GX160_Performance_Kit_2
Our Price: £
Stock Available:
GX160 Performance Upgrade Stage 3
GX160 Performance Upgrade Stage 3
High Lift Custom Camshaft (Cam #5, 6 or 7 depending on requirements)
GX200 Cylinder Head Gasket
Milled 14cc Cylinder Head
Aluminium Flywheel with Advanced Timimg
Billet Con Rod
De-baffled Exhaust
GX390 Carb, Carb Adapter, Air Filter and Air Filter Adapter
Rev Kit #2 (Stainless Steel Valves, Aluminium Collets and Split Keepers, Chrome Moly Push Rods, 26lb Valve Springs, less rocker arms)
Billet 1:3 Ratio Roller Rocker Arms
Billet Guide Plate
Part Number: GX160_Performance_Kit_3
Our Price: £
Stock Available:
GX200 Performance Upgrade Stage 1
GX200 Performance Upgrade Stage 1
Custom Camshaft #1
Smaller GX120 Fan (reduces drag)
Flat Top Piston 13101-Z4M-000
File Fit UT1 Piston Rings
De-Baffled Exhaust
G200 Valve Springs
Part Number: GX200_Performance_Kit_1
Our Price: £
Stock Available:
GX200 Performance Upgrade Stage 2
GX200 Performance Upgrade Stage 2
Re-profiled Camshaft (Cam #1)
Smaller GX120 Fan (reduces drag)
Flat Top Piston 13101-Z4M-000
File Fit UT1 Piston Rings
Milled 14cc Cylinder Head
De-Baffled Exhaust
Air Filter Adapter and Air Filter
G200 Valve Springs
1:3 Ratio Rocker Arms
Part Number: GX200_Performance_Kit_2
Our Price: £
Stock Available:
GX200 Performance Upgrade Stage 3
GX200 Performance Upgrade Stage 3
High Lift Custom Camshaft (Cam #5, 6 or 7 depending on requirements)
Milled 14cc Cylinder Head
Aluminium Flywheel with Advanced Timimg
Billet Con Rod
Flat Top Piston 13101-Z4M-000
File Fit UT1 Piston Rings
De-baffled Exhaust
GX390 Carb, Carb Adapter, Air Filter and Air Filter Adapter
Rev Kit #2 (Stainless Steel Valves, Aluminium Collets and Split Keepers, Chrome Moly Push Rods, 26lb Valve Springs, less rocker arms)
Billet 1:3 Ratio Roller Rocker Arms
Billet Guide Plate
Part Number: GX200_Performance_Kit_3
Our Price: £
Stock Available:
Carb Kit for GX160 Engines (Mild Tune)
Carb Kit for GX160 Engines (Mild Tune)
GX200 Carb Insulator
GX200 Carb
Air Filter Adapter
Air Filter
Carb Insulator Gasket
Carb Gasket
Part Number: Carb Kit 1
Our Price: £
Stock Available:
Carb Kit for GX160 and GX200 Engines (Heavy Tune)
Carb Kit for GX160 and GX200 Engines (Heavy Tune)
GX390 Carb
Carb Adapter
Air Filter Adapter
Air Filter
Carb Insulator Gasket
GX390 Carb Insulator
Carb Gasket
Part Number: Carb Kit 2
Our Price: £
Stock Available:
Mikuni Carb Kit for GX160 and GX200 Engines (Extreme Tune)
Mikuni Carb Kit for GX160 and GX200 Engines (Extreme Tune)
Mikuni Carb
Carb Adapter
Air Filter
Part Number: Carb Kit 3
Our Price: £
Stock Available:
Chrome Side Shroud and Pull Start.
Chrome Exhaust Shroud