NR RACING

 

HOP UP KITS FOR GX160/200 HONDAS

& 6.5 Chinese OHV MOTORS

STAGE 1 KITS                           STAGE 2 KITS                        STAGE 3 KITS

 

STAGE 4 KITS                                GX120 KITS                                   GX270 KITS 
 

BOLT ON HOP UP KITS FOR GX160, GX200, and Chinese 6.5 OHV ENGINES

 

Kits are 100% Complete with all parts needed (Engine not Included).  All kits require Aftermarket Exhaust and/or Header to work properly. Exhaust is not included and must be ordered separate.  Horsepower ratings are for reference only and assumed tuned exhaust. Actual HP may be different.

WARNING: STOCK FLYWHEELS ARE UNSAFE!!!!

ANY MOTOR WITH GOVERNOR REMOVED SHOULD USE AN ALUMINUM FLYWHEEL.

 

   STAGE 1 HOP UP KIT

Basic kit for improving the performance of GX160, 200s, and Chinese 6.5 Engines. Simple to install, you can expect significant performance increases.

 

Stage 1 Kit includes

  • Race/Open Air Filter & Adapter,

  • Choke Bracket

  • Correct Jet for application,

  • Rev Kit w/18 lb Springs,

  • 8 degree Timing Key,

  • Small Fan,

  • Valve Cover Gasket.

  • Optional Header/Exhaust,

  • Optional Flywheels

Approx 7.5 hp for 160s

Approx 9.0 hp for 6.5s and GX200s

 STAGE 1 ORDER FORM

Select Options below and click button to add to shopping cart

Select Engine Type

Honda GX200 $79

Yellow Clone $79

  Blue (5 bolt) Clone $79

Honda GX160 $89

212 Predator $79

 

 

Select Fuel Type

 
Gas $0

Methanol +$20

E85 +$20

 

Exhaust Options
No Exhaust
Add Header - Kart $20

Add Header - Mini Bike $35
Add Muffler & Clamp $40

 

Flywheel Option

No Flywheel

Add OEM Honda Flywheel $45

Add Aluminum Flywheel $90 
      

Total Cost        

   STAGE 2 HOP UP KIT

For those looking to get the maximum performance without opening up the case, we offer our stage 2 kit. Where possible, we only use genuine Honda components to improve reliability and power. Same as our stage 1 kit but with the addition of a bored carb and 1.3 rockers arms to produce a solid 10 hp on GX200s.

 

Includes

  • Race/Open Air Filter & Adapter,

  • 1.3 Rocker Arms

  • Rev Kit w/18 lb Springs,

  • 8 degree Timing Key,

  • Small Fan,

  • Valve Cover Gasket.

  • Thin Head Gasket (160 Kits only)

  • Carb gasket

  • Guide Plate (Clones Only)

  • Optional Header/Exhaust,

Approx 8.5 hp for 160s

Approx 10.0+ hp for 6.5s and GX200s 

  STAGE 2 HOP KIT ORDER FORM

Select Options below and click button to add to shopping cart

Select Engine Type

Honda GX200 $159

Blue (5 bolt) Clone $159

Yellow Clone $159

Honda GX160 $174

212 Predator $159

 

 

Select Carburator

 
GX200 Bored - gas $0

GX200 Bored - Methanol +$20

GX200 Bored - E85 +$20

SA Extreme Carb - gas +$60

SA Extreme Carb +$70

 

Exhaust Options
No Exhaust
Add Header - Kart $20

Add Header - Mini Bike $35

Add Muffler & Clamp $40

 

Flywheel Option

No Flywheel

Add OEM Honda Flywheel $45

Add Aluminum Flywheel $90 

      

Total Cost        

   STAGE 3 HOP UP KIT

Now you are getting serious. A set-up from Stage 2 kit, we add a cam and a choice of carburetors. A billet rod and all need gaskets are also included.  HP will range between 11 and 14 depending on cam/carb selected.

 

Includes

  • Race/Open Air Filter & Adapter,

  • Choice of Bored GX200 , 390 , or 22mm Carb

  • 260 Dyno, CL1, or NR230U Cam

  • Rev Kit w/18 lb Springs,

  • 8 degree Timing Key,

  • Small Fan,

  • Valve Cover Gasket.

  • Carb gasket

  • Thin Head Gasket (160 Kits only)

  • Billet Rod (not shown in picture), Std length on clones, .020 on Hondas.

  • Case Gasket

  • optional Header/Exhaust

  • Guide plate (Clones only)

  • Rocker arms not  included, use stock rockers (1.3 will not work with cams)

Approx 12 hp for 160s

Up to 14 hp for 6.5s and GX200s 

 

Note: To get maximum power, head should be ported and/or milled.

 

STAGE 3 HOP KIT ORDER FORM

Select Options below and click button to add to shopping cart

Select Engine Type

Honda GX200 $229

Yellow Clone $229

  Blue (5 bolt) Clone $229

Honda GX160 $244

212 Predator $299

 

Select Carb

GX200 Bored - gas $0
GX200 Bored - Methanol +$20

SA Extreme - gas +$60
SA Extreme  - Methanol +$70

GX390 - Gas +$45

GX390 - Methanol +$50

22mm Mikuni - Gas +$30

Walbro 26 - Gas +$110

  

   

Select Camshaft

CL1- No Charge
Dyno CM260 (Large tracks) +$10
230U 0207 ( for small tracks) +$10

230U Marine +$10

252 0207 Package +$180

252 0607 Package +$180

(252 Cams includes 26lb Springs, Reinforced Rocker Arms, CM pushrods, Billet Guide Plate) 

 

Exhaust Options
No Exhaust

Add Header - Kart $20

Add Header - Mini Bike $35

Add Muffler & Clamp $40

 

Flywheel

No Flywheel Included

Add OEM Honda Flywheel $45

Add Aluminum Flywheel $90 
      

Total Cost        

   STAGE 4+ KIT

Our Stage 4+ kits allows you to customize a kit for your application. The 4+ kit starts with package similar to that of the stage 3 kit but adds a Ported and Milled Head, stainless valves, billet rockers, and a serious cam package. Options include everything from roller rockers to stroker kits. This kit will allow you to build a motor in excess of 20+ hp

 

Includes

  • Race/Open Air Filter & Adapter,

  • Bored GX200 Carb

  • Ported & Milled Honda Head)

  • 1.2 Billet Rocker Arms

  • Chrome Moly Pushrods

  • Stud Kit

  • 26 lb Springs,

  • Lash Caps

  • 8 degree Timing Key,

  • Small Fan

  • Gasket Kit

  • Billet Rod (not shown in picture), std with clones, .020 with GX200s

  • Billet Guide plate

  • Choice of Compression Ratios

  • Choice of Cams

  • Optional Long Rod

  • Optional Roller Rockers

  • Optional Flywheels

  • Optional Crankshaft

  • Optional Stroker Kit

 

 

Some parts not shown

 STAGE 4 HOP KIT ORDER FORM

Select Options below and click button to add to shopping cart

Select Engine Type

Honda GX200$649

Yellow Clone $649

  Blue (5 bolt) Clone $649

Honda GX160 $649

212 Predator $719

 

Select Valve Size

  25mm Intake, 24mm Exh

27mm Intake, 24mm Exh +$20

28.5mm Intake, 25mm Exh +90

 

Select Carb Size

  Bored Carb - gas

Bored Carb - Methanol +$20

SA Extreme - gas +$60
SA Extreme  - Methanol +$70

GX390 - Gas +$40

GX390 - Methanol +$50

  22mm Mikuni - Gas +$30

Walbro PZ26 - Gas +$110

   24mm Flat Slide Mikuni - Gas +$140

28mm Flat Slide Mikuni - Alky +$150

 

Select Camshaft

(see GX200 race parts for descriptions)

252 0207

252 0607

252 Marine

274 0207

274 0607

274 1007

285 0607

307 0807

 

Valve Spring

Single Spring

Dual Springs +$20.00

 

 

 

Compression ratio (approximate GX200)

9 to 1 (22cc head)

10 to 1 (22cc head)

10.7 to 1 (22cc head)

10.5 to 1 (18 cc head) +$40

11.3 to 1 (18 cc head) +$40

12.5 to 1 (18 cc head) +$40

For higher compression ratios, select flat top pistons.

 

Piston & Rings (unless specified these will not fit Predators) Flattops add approx 1.5 point compression

  None $0

T2 Flattop +$40

T2 Lightweight Flattop +$60

T3 Dished +$40

  T3 Lightweight Dished +$60

   T3 Lightweight Flattop +$60

Wiseco Forged (adds long rod) $115

Wiseco Forged (adds long rod) for

       Predator $120

 

Crankshaft

  None $0

OEM Honda +$80

OEM Honda, Balanced +$180

.060 Stroker, Unbalanced +$200

.060 Stroker, Balanced +$300

.175 Billet Stroker +$375

(includes Wiseco Piston)

 

Flywheel

  None $0

Billet Aluminum +$90

Small Diameter Aluminum +$180

LW Aluminum w/PVL Ignition (coil and bracket included) +$219

 

Select Misc Options
 Roller Rockers $150
      

Total Cost        

    F200 Kit

Complete Kit to to prepare a GX200 for F200 Class. Kit includes

  • Camshaft, F200

  • Choke Holder, aluminum

  • Cover, Valve Cover w/Nipple

  • Flywheel, Billet

  • Fuel Pump Pulse Fitting, Brass

  • Fuel Pump, Mikuni, Rectangular

  • Fuel Pump, Mounting Plate

  • Guide Plate, Billet, GX200

  • Key, Timing, Offset,

  • Lash caps, 5.5mm,

  • Pushrods, Chrome Moly

  • Retainer, 5.5mm, Alum/keepers

  • Rocker Arms, Reinforced,

  • Rod, Connecting, Billet,  Std

  • Spring, Valve, 37 lb, Pair

  • Stud Kit, GX200,

  • Stud Kit, Valve Cover, GX200

  • Valve, 24 mm x 5.5, SS

  • Valve, 27 mm x 5.5, SS

  • Bearing, Case, ABEC 5 C3,

  • Exhaust, F200, Kit w/muffler

  • Tillotson Dominator Kit, F200

 Picture Coming Soon

$899.00

Compete Parts Kit for F200, Engine Not Included

 

$1189.00

Compete including  GX200 Engine.

(Note: Motor is  a new stock engine. No machining or prep has been done)

    GX120 HOP UP KITS
 

Call or email for information

      
           

Pictures are for reference only.