Forged Pistons for Acura/Honda, 87mm, K20A 8.7:1 or K24A 10:1 ( (CP Pistons SC7046)
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|
Make |
Acura/Honda |
|
Model |
K24 w/K20A/A2/A3 |
|
Part Number |
SC7046 |
|
Cylinders |
4 |
|
Bore (in) |
3.425 |
|
Bore (mm) |
87 |
|
Size |
STD |
|
Stroke |
99 |
|
Conrod |
152 |
|
Comp Height (in) |
1.181 |
|
Comp Height (mm) |
30 |
|
Dom/Dish CC |
-9.1 |
|
Compression Ratio |
10 |
|
Weight (Grams) |
318 |
|
Pin (mm) |
22 |
|
Rings |
CPN-3425 |
|
Ring Thickness |
1.0 x 1.2 x 2.8mm |
|
Pin included (Standard) |
866-2250-20CP1C |
|
Upgraded Pin |
866-2250-20CP3C |
|
Ultra Duty Pin |
866-2250-25CP3C |
|
Locks |
866x063 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 Acura/Honda, 87mm, K20A 8.7:1 or K24A 10:1 ( (CP Pistons SC7046) |
|---|---|
| Brands | CP Carrillo |
| Engine | K20 |
| 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 is the compression ratio for the SC7046 pistons in a K20A engine?
The SC7046 pistons provide a compression ratio of 8.7:1 when used in a K20A engine. For a K24A engine, the compression ratio is 10:1. Ensure that your engine's setup aligns with these specifications for optimal performance.
What type of ring gaps should I set for the SC7046 pistons?
The ring gaps for the SC7046 pistons should be set according to the specific application and boost levels. Generally, a common starting point is 0.0040” to 0.0045” per inch of bore for the top ring and slightly larger for the second ring. Always consult with your engine builder for precise settings based on your build.
Are the SC7046 pistons compatible with high lift camshafts?
Yes, the SC7046 pistons feature deep valve reliefs designed to accommodate high lift camshafts. This allows for increased airflow and performance, making them suitable for high-performance applications.
What is the recommended machining process for the SC7046 pistons?
When installing SC7046 pistons, ensure that the cylinder bore is properly honed to achieve the correct clearance. The pistons should be fitted with appropriate ring gaps and checked for any necessary adjustments to ensure optimal performance and reliability.
What is the weight of the SC7046 pistons and how does it affect performance?
The SC7046 pistons weigh 318 grams each. Lighter pistons can improve engine response and reduce rotational mass, which can enhance performance. However, ensure that your engine's balance is maintained with the full rotating assembly for best results.
