Forged Pistons for Honda, F20C, 87.5mm, CH 1.181, 12.5:1 or F22C, 13.4:1 (CP Pistons SC7166)
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|
Make |
Honda |
|
Model |
F20C |
|
Part Number |
SC7166 |
|
Cylinders |
4 |
|
Bore (in) |
3.445 |
|
Bore (mm) |
87.5 |
|
Size |
+0.5mm |
|
Stroke |
84 |
|
Conrod |
153 |
|
Comp Height (in) |
1.181 |
|
Comp Height (mm) |
30 |
|
Dom/Dish CC |
8.5 |
|
Compression Ratio |
12.5 |
|
Weight (Grams) |
358 |
|
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 1.181, 12.5:1 or F22C, 13.4:1 (CP Pistons SC7166) |
|---|---|
| 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 SC7166 pistons in an F20C engine?
The SC7166 pistons provide a compression ratio of 12.5:1 when used in the F20C engine. If installed in an F22C engine, the compression ratio will be 13.4:1. Ensure that your engine is properly tuned to handle the increased compression.
What are the recommended bore and ring gap specifications for the SC7166 pistons?
The SC7166 pistons have a bore size of 87.5mm. As for ring gaps, they should be set according to your specific application and power goals, taking into account the intended use and operating conditions of the engine.
Can I use the SC7166 pistons with upgraded valve sizes?
Yes, the SC7166 pistons are designed with deep valve reliefs to accommodate oversized valves and high lift camshafts. This feature allows for better airflow and performance when using upgraded components.
What is the weight of the SC7166 pistons, and how does it affect performance?
Each SC7166 piston weighs 358 grams. This relatively lightweight design helps reduce reciprocating mass, allowing for quicker engine response and higher RPM potential, which is beneficial for performance applications.
What type of wrist pins are included with the SC7166 pistons?
The SC7166 pistons come with standard wrist pins (part number 905-2250-15CP1C) included at no additional cost. Upgraded and ultra-duty pins are also available for those looking for enhanced durability.
