Forged Pistons for Acura/Honda, B16A, 84.5mm, 10.4:1 or B20 or Sleeved B18 Block w/B16A or B18C Head, 11.5:1 (CP Pistons SC7118)
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|
Make |
Acura/Honda |
|
Model |
B16A |
|
Part Number |
SC7118 |
|
Cylinders |
4 |
|
Bore (in) |
3.327 |
|
Bore (mm) |
84.5 |
|
Size |
+3.5mm |
|
Stroke |
77.4 |
|
Conrod |
134.3 |
|
Comp Height (in) |
1.181 |
|
Comp Height (mm) |
30 |
|
Dom/Dish CC |
1.1 |
|
Compression Ratio |
10.4 |
|
Weight (Grams) |
312 |
|
Pin (mm) |
21 |
|
Rings |
CPN-3327 |
|
Ring Thickness |
1.0 x 1.2 x 2.8mm |
|
Pin included (Standard) |
827-2250-16CP1C |
|
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, 84.5mm, 10.4:1 or B20 or Sleeved B18 Block w/B16A or B18C Head, 11.5:1 (CP Pistons SC7118) |
|---|---|
| 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 SC7118 pistons?
The SC7118 pistons provide a compression ratio of 10.4:1 when used in a B16A engine. For a B20 or a sleeved B18 block with a B16A or B18C head, the pistons can achieve a higher compression ratio of 11.5:1. Ensure that your engine is properly tuned to handle the increased compression.
What bore size do the SC7118 pistons require?
The SC7118 pistons have a bore size of 84.5mm, which is an increase of +3.5mm over the stock size. It is crucial to ensure that your engine block is bored to this specification for optimal performance.
What are the recommended ring gap settings for the SC7118 pistons?
While specific ring gap settings can vary based on application, a general guideline for the SC7118 pistons is to consult with your engine builder to determine the appropriate gaps based on your intended use, boost levels, and RPM range.
Can the SC7118 pistons accommodate high lift camshafts?
Yes, the SC7118 pistons feature deep valve reliefs specifically designed to accommodate high lift camshafts and oversized valves. This makes them suitable for high-performance applications where such modifications are common.
What is the weight of the SC7118 pistons, and how does it affect performance?
The SC7118 pistons weigh 312 grams each. Lighter pistons can improve engine response and reduce reciprocating mass, which is beneficial for high RPM applications. However, ensure that your engine's balance and overall design can support this weight for optimal performance.
