2010-2013 Honda CRF250R 13.5:1 76.8mm std bore x 53.8mm stroke (249cc) piston kit
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2010-2013 Honda CRF250R 13.5:1 76.8mm std bore x 53.8mm stroke (249cc) piston kit
|
Make |
Honda |
|
Engine Size |
250cc |
|
Model |
CRF250R |
|
Year |
2010-2013 |
|
Bore (mm) |
76.8mm |
|
Comp Ratio |
13.5:1 |
|
Piston Part Number |
MX2070C |
|
Gasket Part Number |
C3288 |
|
Conrod Part Number |
PSR8822A |
|
Pin Part Number |
S630-1650-13C |
|
Locks Part Number |
630x050 SWL |
|
Rings |
CP7680C |
|
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 | 2010-2013 Honda CRF250R 13.5:1 76.8mm std bore x 53.8mm stroke (249cc) piston kit |
|---|---|
| Brands | CP Carrillo |
Delivery & Freight
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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 MX2070C piston kit?
For the MX2070C piston kit, it is crucial to follow the manufacturer's specifications for piston-to-cylinder clearance and ring end gaps. Typically, a clearance of 0.0025" to 0.0035" is recommended for the piston, but this can vary based on your specific application and tuning. Always refer to the supplied instructions for precise measurements.
What type of conrod is compatible with the MX2070C piston kit?
The MX2070C piston kit is designed to work with the PSR8822A conrod. Ensure that the conrod is properly installed and that the big-end and small-end clearances are within the recommended specifications to maintain reliability and performance.
What is the compression ratio of the MX2070C piston kit, and how does it affect performance?
The MX2070C piston kit has a compression ratio of 13.5:1. This high compression ratio can enhance power output and throttle response, but it also requires high-octane fuel to prevent detonation. Proper tuning and fuel quality are essential to maximise performance and reliability.
How should I install the MX2070C piston kit for optimal performance?
When installing the MX2070C piston kit, ensure that the pistons are oriented correctly with the arrow pointing towards the front of the engine. Use the appropriate wrist pin clips and ensure they are securely seated. Follow the torque specifications for the conrod bolts and ensure the engine is properly assembled to avoid any issues.
Is the MX2070C piston kit suitable for racing applications?
Yes, the MX2070C piston kit is designed for high-performance applications, including racing. Its forged construction and high compression ratio make it suitable for competitive use. However, ensure that your engine is properly built and tuned to handle the increased demands of racing conditions.
