Forged Pistons for Acura/Honda, B16A, 85mm, 12:1 or B20 or Sleeved B18 Block w/B16A or B18C Head, 13:1 ( (CP Pistons SC7123X)
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|
Make |
Acura/Honda |
|
Model |
B16A |
|
Part Number |
SC7123X |
|
Cylinders |
4 |
|
Bore (in) |
3.346 |
|
Bore (mm) |
85 |
|
Size |
+4.0mm |
|
Stroke |
77.4 |
|
Conrod |
134.3 |
|
Comp Height (in) |
1.181 |
|
Comp Height (mm) |
30 |
|
Dom/Dish CC |
7.7 |
|
Compression Ratio |
12 |
|
Weight (Grams) |
270 |
|
Pin (mm) |
21 |
|
Rings |
CPN-3347 |
|
Ring Thickness |
1.0 x 1.2 x 2.8mm |
|
Pin included (Standard) |
827-2000-12CP1C |
|
Upgraded Pin |
827-2000-20CP3C |
|
Ultra Duty Pin |
NA |
|
Locks |
827x063 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, B16A, 85mm, 12:1 or B20 or Sleeved B18 Block w/B16A or B18C Head, 13:1 ( (CP Pistons SC7123X) |
|---|---|
| Brands | CP Carrillo |
| Engine | B16 - Honda, B18 - Honda |
| 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 SC7123X pistons?
The SC7123X pistons are designed for a compression ratio of 12:1 when used in a B16A engine. If used in a B20 or sleeved B18 block with a B16A or B18C head, you can achieve a compression ratio of 13:1. Ensure that your engine is properly tuned to handle the increased compression.
What are the recommended machining requirements for these pistons?
When installing SC7123X pistons, ensure that the cylinder bore is correctly sized to 85mm with appropriate clearance. It's also essential to set the ring gaps according to your specific application and boost levels. Always consult with your engine builder for precise machining requirements.
Can I use these pistons with oversized valves?
Yes, the SC7123X pistons feature deep valve reliefs that accommodate oversized valves and high lift camshafts. This design allows for improved airflow and performance, making them suitable for high-performance builds.
What is the weight of the SC7123X pistons, and how does it affect performance?
Each SC7123X piston weighs 270 grams. This relatively lightweight design helps reduce reciprocating mass, which can improve engine response and revving capabilities. However, ensure that your conrods and crankshaft are also rated for the intended RPM and power levels.
What type of wrist pins are included with the SC7123X pistons?
The SC7123X pistons come with standard wrist pins (part number 827-2000-12CP1C) included at no additional cost. If you require an upgraded pin, you can opt for the 827-2000-20CP3C. Ensure proper fitment and lubrication during installation.
