Forged Pistons for Honda, F20C, 87mm, CH 1.181, 12.5:1 or F22C, 13.4:1 (CP Pistons SC7165)
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|
Make |
Honda |
|
Model |
F20C |
|
Part Number |
SC7165 |
|
Cylinders |
4 |
|
Bore (in) |
3.425 |
|
Bore (mm) |
87 |
|
Size |
STD |
|
Stroke |
84 |
|
Conrod |
153 |
|
Comp Height (in) |
1.181 |
|
Comp Height (mm) |
30 |
|
Dom/Dish CC |
9.1 |
|
Compression Ratio |
12.5 |
|
Weight (Grams) |
348 |
|
Pin (mm) |
23 |
|
Rings |
CPN-3425 |
|
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, 87mm, CH 1.181, 12.5:1 or F22C, 13.4:1 (CP Pistons SC7165) |
|---|---|
| Brands | CP Carrillo |
| Engine | F20, F22 |
| Make | Honda |
Delivery & Freight
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Product images are for description purposes only. Actual product may vary.
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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 is the recommended compression ratio for the SC7165 pistons in the F20C and F22C engines?
The SC7165 pistons have a compression ratio of 12.5:1 for the F20C and 13.4:1 for the F22C. Ensure that your engine is built to handle these ratios, as they require high-octane fuel and proper tuning for optimal performance.
What machining considerations should I keep in mind when installing the SC7165 pistons?
When installing the SC7165 pistons, ensure that the bore clearance is set correctly according to your engine's specifications. Additionally, verify that the ring gaps are properly set, as this is crucial for performance and reliability.
Can I use the SC7165 pistons with oversized valves and high lift camshafts?
Yes, the SC7165 pistons are designed with deep valve reliefs to accommodate oversized valves and high lift camshafts. This feature allows for improved airflow and performance in modified engines.
What is the weight of the SC7165 pistons, and how does it affect engine performance?
The SC7165 pistons weigh 348 grams each. Lighter pistons can improve engine response and reduce reciprocating mass, which can lead to better acceleration and higher RPM capabilities. However, ensure that your engine is balanced with the full rotating assembly.
What type of wrist pins are included with the SC7165 pistons?
The SC7165 pistons come with standard wrist pins (part number 905-2250-15CP1C) included at no additional cost. If you require upgraded or ultra-duty pins, options are available for purchase separately.
