2002-2008 Honda CRF450R 12.5:1 96mm std bore x 62.1mm stroke (449cc) piston kit
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2002-2008 Honda CRF450R 12.5:1 96mm std bore x 62.1mm stroke (449cc) piston kit
|
Make |
Honda |
|
Engine Size |
450cc |
|
Model |
CRF450R |
|
Year |
2002-2008 |
|
Bore (mm) |
96mm |
|
Comp Ratio |
12.5:1 |
|
Piston Part Number |
MX2009 |
|
Gasket Part Number |
C3047 |
|
Conrod Part Number |
PSR8820A |
|
Pin Part Number |
S748-2000-15C |
|
Locks Part Number |
748x050 SWL |
|
Rings |
CPN2-2-3779 |
|
Shelf (RPO) or Made to Order (MTO) |
MTO |
Proudly made in the USA by CP Carrillo Pistons!
- Fully CNC machined
- Balanced to +/- 1 gram
- Double forced pin oilers
- Forged from high strength 2618 alloy
- Designed for maximum performance, horsepower and reliability
- Complete kit includes two pistons, ring sets, wrist pins and clips
- Follow ring end gap and piston to cylinder clearances as per the supplied instructions
| Product Name | 2002-2008 Honda CRF450R 12.5:1 96mm std bore x 62.1mm stroke (449cc) piston kit |
|---|---|
| Brands | CP Carrillo |
Delivery & Freight
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Product images are for description purposes only. Actual product may vary.
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If you are unsure, get in touch by emailing [email protected], messaging us on Facebook, or phoning us at +61 7 5645 1333 (8am to 2pm AET).
What information do I need to match these pistons to my engine?
You need the engine code, bore size, stroke, rod length, pin diameter and target compression ratio. These determine the correct piston compression height and crown design.
How should ring gaps be set for these pistons?
Ring gaps must be set by your engine builder based on fuel type, boost level and the intended rpm range. Forced-induction engines usually require larger gaps.
Are forged pistons suitable for street engines?
Yes. Forged pistons handle detonation and high cylinder pressure better than cast units. Your builder should set the piston-to-bore clearance to suit your application.
What are the recommended clearances for the MX2009 piston kit?
For the MX2009 piston kit, it's crucial to follow the manufacturer's guidelines for piston-to-cylinder clearance and ring end gaps. Typically, a clearance of 0.0025" to 0.0035" is suitable for most applications, but always verify with your specific engine setup.
What type of fuel is recommended for the 12.5:1 compression ratio?
For the 12.5:1 compression ratio of the MX2009 piston kit, premium fuel with an octane rating of at least 98 RON is recommended to prevent knocking and ensure optimal performance. Adjustments to ignition timing may also be necessary.
Do I need to modify my cylinder head for the MX2009 piston kit?
Depending on your specific engine setup, you may need to modify the cylinder head to accommodate the increased compression ratio of the MX2009 piston kit. This could include reshaping combustion chambers or adjusting valve clearance.
What is included in the MX2009 piston kit?
The MX2009 piston kit includes two forged pistons, ring sets, wrist pins, and clips. Ensure all components are inspected for fitment and quality before installation.
How should I break in the engine after installing the MX2009 piston kit?
After installing the MX2009 piston kit, follow a proper break-in procedure. This typically involves varying engine RPMs and avoiding full throttle for the first few hours of operation to allow the rings to seat properly.
