Forged Pistons for Acura/Honda, R18, 81mm, 9:1 (CP Pistons SC7023)
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|
Make |
Honda |
|
Model |
R18 |
|
Part Number |
SC7023 |
|
Cylinders |
4 |
|
Bore (in) |
3.189 |
|
Bore (mm) |
81 |
|
Size |
STD |
|
Stroke |
87.3 |
|
Conrod |
157.5 |
|
Comp Height (in) |
1.135 |
|
Comp Height (mm) |
28.8 |
|
Dom/Dish CC |
-15.5 |
|
Compression Ratio |
9 |
|
Weight (Grams) |
272 |
|
Pin (mm) |
20 |
|
Rings |
CPN-3189 |
|
Ring Thickness |
1.0 x 1.2 x 2.8mm |
|
Pin included (Standard) |
787-2250-16CP1C |
|
Upgraded Pin |
787-2250-18CP3C |
|
Ultra Duty Pin |
787-2250-24CP3C |
|
Locks |
787X050 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, R18, 81mm, 9:1 (CP Pistons SC7023) |
|---|---|
| Brands | CP Carrillo |
| Engine | R18 |
| 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 SC7023 pistons?
For the SC7023 pistons, a typical bore clearance of 0.0015" to 0.0020" is recommended. However, exact clearances should be determined by the engine builder based on the specific application and intended use.
What compression ratio can I expect with the SC7023 pistons in an R18 engine?
The SC7023 pistons provide a compression ratio of 9:1 when used in the R18 engine. This ratio is suitable for a balance of performance and reliability, but tuning and fuel quality will significantly affect overall performance.
Are the SC7023 pistons compatible with aftermarket camshafts?
Yes, the SC7023 pistons feature deep valve reliefs designed to accommodate high lift camshafts and oversized valves, making them compatible with many aftermarket options. Always verify clearance during installation.
What is the weight of the SC7023 pistons and how does it affect performance?
The SC7023 pistons weigh 272 grams each. Lighter pistons can improve engine response and reduce inertia, but it's essential to balance them with the rest of the rotating assembly for optimal performance.
What type of wrist pins are included with the SC7023 pistons?
The SC7023 pistons come with standard wrist pins (part number 787-2250-16CP1C) included at no additional cost. Upgraded and ultra-duty pins are also available for those seeking enhanced performance and durability.
