Forged Pistons for Honda, F20C, 87.5mm, CH 1.131, 9:1 or F22C, 9.6:1 ( (CP Pistons SC7061A)
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|
Make |
Honda |
|
Model |
F20C |
|
Part Number |
SC7061A |
|
Cylinders |
4 |
|
Bore (in) |
3.445 |
|
Bore (mm) |
87.5 |
|
Size |
+0.5mm |
|
Stroke |
84 |
|
Conrod |
153 |
|
Comp Height (in) |
1.131 |
|
Comp Height (mm) |
28.7 |
|
Dom/Dish CC |
-3.0 |
|
Compression Ratio |
9 |
|
Weight (Grams) |
313 |
|
Pin (mm) |
23 |
|
Rings |
CPN-3445 |
|
Ring Thickness |
1.0 x 1.2 x 2.8mm |
|
Pin included (Standard) |
905-2250-15CP1C |
|
Upgraded Pin |
905-2250-19CP3C |
|
Ultra Duty Pin |
905-2250-26CP3C |
|
Locks |
905x073 SWL |
CP pistons are compatible with oversized valves and high lift camshafts. CP Pistons represent the highest quality and is engineered for maximum power. Standard features include: Deep valve reliefs accommodate high lift camshafts; Larger valve reliefs for +1mm valve sizes; Custom skirt cam and barrel design; Accumulator grooves; High strength aluminum forgings; High performance rings; Fully CNC machined and balanced to +/- 1 gram; Wrist pins included at no additional cost; Double pin oilers force fed from oil ring groove; Pin lock grooves for easy lock removal; Pin fitting included.
| Product Name | Forged Pistons for Honda, F20C, 87.5mm, CH 1.131, 9:1 or F22C, 9.6:1 ( (CP Pistons SC7061A) |
|---|---|
| Brands | CP Carrillo |
| Engine | F20, F22 |
| Make | Honda |
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 compression ratio can I achieve with the SC7061A pistons in my F20C or F22C engine?
The SC7061A pistons offer a compression ratio of 9:1 for the F20C and 9.6:1 for the F22C. Keep in mind that the final compression ratio can be influenced by factors such as head gasket thickness and any machining done to the cylinder head.
What are the recommended bore and clearance specifications for the SC7061A pistons?
The SC7061A pistons are designed for a bore size of 87.5mm. It's crucial to ensure that the pistons are fitted with the correct bore clearance as specified by your engine builder, typically around 0.0015" to 0.0025" for performance applications.
Can I use the SC7061A pistons with high lift camshafts?
Yes, the SC7061A pistons are engineered with deep valve reliefs to accommodate high lift camshafts. This design allows for compatibility with oversized valves and ensures that there is sufficient clearance during operation.
What is the weight of the SC7061A pistons and how does it affect performance?
Each SC7061A piston weighs 313 grams. Lighter pistons can improve engine response and reduce reciprocating mass, which is beneficial for high RPM applications. However, always ensure that the overall rotating assembly is balanced for optimal performance.
What type of wrist pins are included with the SC7061A pistons?
The SC7061A pistons come with standard wrist pins (part number 905-2250-15CP1C) included at no additional cost. Upgraded and ultra-duty wrist pins are also available for those looking to increase strength and reliability in high-performance applications.
