Forged Pistons for Acura/Honda, B16A, 83mm, 9.8:1 or B18 Block w/B16A or B18C Head, 11:1 (CP Pistons SC7112)
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|
Make |
Acura |
|
Model |
B18 Block w/B16A or B18C Head |
|
Part Number |
SC7112 |
|
Cylinders |
4 |
|
Bore (in) |
3.268 |
|
Bore (mm) |
83 |
|
Size |
+2.0mm |
|
Stroke |
87.2/89 |
|
Conrod |
138/137 |
|
Comp Height (in) |
1.181 |
|
Comp Height (mm) |
30 |
|
Dom/Dish CC |
-0.1 |
|
Compression Ratio |
11 |
|
Weight (Grams) |
296 |
|
Pin (mm) |
21 |
|
Rings |
CPN-3268 |
|
Ring Thickness |
1.0 x 1.2 x 2.8mm |
|
Pin included (Standard) |
827-2250-20CP1C |
|
Upgraded Pin |
827-2250-20CP3C |
|
Ultra Duty Pin |
827-2250-25CP3C |
|
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, 83mm, 9.8:1 or B18 Block w/B16A or B18C Head, 11:1 (CP Pistons SC7112) |
|---|---|
| Brands | CP Carrillo |
| Engine | B16 - Honda, B18 - Honda |
| Make | Honda |
Delivery & Freight
We are an Australian-based company that ships items nationally and internationally, usually within 48 hours of receiving your order. High-value items shipped internationally are sent via DHL Express, while lower-value items are sent via Australia Post Express unless otherwise instructed.
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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 SC7112 pistons in a B16A or B18 engine?
The SC7112 pistons are designed for a compression ratio of 9.8:1 when used in a B16A engine and 11:1 when paired with a B18 block and B16A or B18C head. Ensure that your engine is properly tuned to handle the specified compression for optimal performance.
What machining is required for the SC7112 pistons?
When installing SC7112 pistons, it's crucial to ensure the bore clearance is set correctly according to your engine's specifications. Additionally, ring gaps should be tailored to your specific application, especially if you plan to run higher boost levels or RPMs.
What type of wrist pins are included with the SC7112 pistons?
The SC7112 pistons come with standard wrist pins (part number 827-2250-20CP1C) included at no extra cost. For applications requiring more strength, you can opt for upgraded pins (827-2250-20CP3C) or ultra-duty pins (827-2250-25CP3C) as needed.
Are the SC7112 pistons compatible with high lift camshafts?
Yes, the SC7112 pistons feature deep valve reliefs that accommodate high lift camshafts, making them suitable for performance builds that utilise oversized valves and aggressive cam profiles.
What is the weight of each SC7112 piston?
Each SC7112 piston weighs 296 grams. This lightweight design contributes to reduced reciprocating mass, which can enhance engine response and performance.
