Forged Pistons for Acura/Honda, B18 Block w/B16A or B18C Head, 81.5mm, 12.5:1 ( (CP Pistons SC7116)
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|
Make |
Acura |
|
Model |
B18 Block w/B16A or B18C Head |
|
Part Number |
SC7116 |
|
Cylinders |
4 |
|
Bore (in) |
3.209 |
|
Bore (mm) |
81.5 |
|
Size |
+0.5mm |
|
Stroke |
87.2/89 |
|
Conrod |
138/137 |
|
Comp Height (in) |
1.181 |
|
Comp Height (mm) |
30 |
|
Dom/Dish CC |
6.4 |
|
Compression Ratio |
12.5 |
|
Weight (Grams) |
294 |
|
Pin (mm) |
21 |
|
Rings |
CPN-3209 |
|
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, B18 Block w/B16A or B18C Head, 81.5mm, 12.5:1 ( (CP Pistons SC7116) |
|---|---|
| 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 is the recommended bore clearance for the SC7116 pistons?
For the SC7116 pistons, a typical bore clearance of 0.0015" to 0.0025" is recommended. This ensures proper thermal expansion and reduces the risk of piston seizure. Always verify with your specific engine build requirements.
What compression ratio can I expect with the SC7116 pistons?
The SC7116 pistons have a compression ratio of 12.5:1 when used in a B18 block with a B16A or B18C head. This high compression is suitable for performance applications but requires careful tuning and high-quality fuel to avoid detonation.
What type of wrist pins are included with the SC7116 pistons?
The SC7116 pistons come with standard wrist pins (827-2250-16CP1C) included at no additional cost. For higher performance needs, upgraded pins (827-2250-20CP3C) and ultra-duty pins (827-2250-25CP3C) are also available.
Can the SC7116 pistons accommodate high lift camshafts?
Yes, the SC7116 pistons feature deep valve reliefs designed to accommodate high lift camshafts and oversized valves. This makes them suitable for high-performance builds where increased airflow is necessary.
What machining processes are necessary for the SC7116 pistons?
When installing SC7116 pistons, ensure that the cylinder bores are properly honed to achieve the recommended clearance. Additionally, verify that the ring gaps are set according to your engine's specifications for optimal performance and reliability.
