Forged Pistons for Acura/Honda, NSX C30A, 90.5mm, 10.2:1 (no OEM rods) (CP Pistons SC7181)
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|
Make |
Acura |
|
Model |
NSX C30A |
|
Part Number |
SC7181 |
|
Cylinders |
6 |
|
Bore (in) |
3.563 |
|
Bore (mm) |
90.5 |
|
Size |
+0.5mm |
|
Stroke |
78 |
|
Conrod |
152 |
|
Comp Height (in) |
1.184 |
|
Comp Height (mm) |
30.1 |
|
Dom/Dish CC |
16.8 |
|
Compression Ratio |
10.2 |
|
Weight (Grams) |
400 |
|
Pin (mm) |
22 |
|
Rings |
CPN-3563 |
|
Ring Thickness |
1.0 x 1.2 x 2.8mm |
|
Pin included (Standard) |
866-2250-15CP1C |
|
Upgraded Pin |
866-2250-20CP3C |
|
Ultra Duty Pin |
866-2250-25CP3C |
|
Locks |
866x063 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, NSX C30A, 90.5mm, 10.2:1 (no OEM rods) (CP Pistons SC7181) |
|---|---|
| Brands | CP Carrillo |
| Engine | C30A NSX |
| 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 SC7181 pistons?
For the SC7181 pistons, a typical bore clearance of 0.0025" to 0.0030" is recommended. However, this may vary based on the specific application and engine builder preferences, so always consult your engine builder for precise measurements.
What compression ratio can I expect with the SC7181 pistons?
The SC7181 pistons provide a compression ratio of 10.2:1 when used with a standard C30A NSX engine setup. Ensure that your engine's combustion chamber and head gasket design support this compression for optimal performance.
Are these pistons compatible with aftermarket rods?
The SC7181 pistons are designed for use with aftermarket rods, but it's crucial to verify the rod length and pin height to ensure proper fitment. Always check the specifications of your chosen rods before installation.
What type of rings come with the SC7181 pistons?
The SC7181 pistons come with high-performance CP rings (CPN-3563), which are designed to handle high power applications. Ensure that the ring gaps are set according to your specific engine build and usage.
What is the weight of the SC7181 pistons?
Each SC7181 piston weighs approximately 400 grams. This lightweight design aids in reducing overall engine weight and improving throttle response, making it suitable for performance applications.
