Forged Pistons for Nissan 86.5mm, RB30/26 8.0:1, RB30/25 8.25:1 (CP Pistons SC7302)
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|
Make |
Nissan |
|
Model |
RB30/RB25DET |
|
Part Number |
SC7302 |
|
Cylinders |
6 |
|
Bore (in) |
3.406 |
|
Bore (mm) |
86.5 |
|
Size |
+0.5mm |
|
Stroke |
85 |
|
Conrod |
152.5 |
|
Comp Height (in) |
1.28 |
|
Comp Height (mm) |
32.5 |
|
Dom/Dish CC |
0 |
|
Compression Ratio |
8.5 FT |
|
Weight (Grams) |
334 |
|
Pin (mm) |
21 |
|
Rings |
CPN-3406 |
|
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 Nissan 86.5mm, RB30/26 8.0:1, RB30/25 8.25:1 (CP Pistons SC7302) |
|---|---|
| Brands | CP Carrillo |
| Engine | RB30DET (DOHC) |
| Make | Nissan |
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 ratios do the CP Pistons SC7302 support?
The CP Pistons SC7302 are designed for RB30/26 engines with a compression ratio of 8.0:1 and for RB30/25 engines with a compression ratio of 8.25:1. Ensure that your engine setup aligns with these specifications for optimal performance.
What is the recommended bore size for the CP Pistons SC7302?
The CP Pistons SC7302 are designed for an 86.5mm bore size. It's crucial to ensure that your engine block is machined to this specification to achieve the correct fit and performance.
What are the features of the CP Pistons SC7302 that enhance performance?
The CP Pistons SC7302 feature deep valve reliefs for high lift camshafts, custom skirt cam and barrel design, and high-performance rings. They are fully CNC machined and balanced to +/- 1 gram, ensuring precision and reliability in high-performance applications.
What type of wrist pins are included with the CP Pistons SC7302?
The CP Pistons SC7302 come with standard wrist pins included at no additional cost. Upgraded and ultra-duty pins are also available for those seeking enhanced durability in high-stress applications.
Do the CP Pistons SC7302 require any specific machining before installation?
While the CP Pistons SC7302 are designed for a precise fit, it's advisable to check for correct bore clearance and ensure that the ring gaps are set appropriately. Always consult with your engine builder for specific machining requirements based on your setup.
