Forged Pistons for Nissan RB25 NEO 87 9:1 (CP Pistons SC7298)
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|
Make |
Nissan |
|
Model |
RB25DET NEO |
|
Part Number |
SC7298 |
|
Cylinders |
6 |
|
Bore (in) |
3.425 |
|
Bore (mm) |
87 |
|
Size |
+1.0mm |
|
Stroke |
71.7 |
|
Conrod |
121.5 |
|
Comp Height (in) |
1.22 |
|
Comp Height (mm) |
31 |
|
Dom/Dish CC |
7 |
|
Compression Ratio |
9 |
|
Weight (Grams) |
334 |
|
Pin (mm) |
21 |
|
Rings |
CPN-3425 |
|
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 RB25 NEO 87 9:1 (CP Pistons SC7298) |
|---|---|
| Brands | CP Carrillo |
| Engine | RB25 NEO |
| 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 are the recommended bore clearances for the SC7298 pistons?
For the SC7298 pistons, a typical bore clearance is around 0.0015" to 0.0025" (0.038mm to 0.064mm). However, it's essential to consult with your engine builder to determine the best clearance based on your specific application and intended use.
What compression ratio can I expect with the SC7298 pistons in my RB25 NEO?
The SC7298 pistons provide a compression ratio of 9:1 when used with the standard RB25 NEO setup. Keep in mind that actual compression may vary based on head gasket thickness and any modifications to the cylinder head.
Are the SC7298 pistons compatible with high lift camshafts?
Yes, the SC7298 pistons feature deep valve reliefs designed to accommodate high lift camshafts, making them suitable for performance builds that require enhanced airflow.
What type of wrist pins are included with the SC7298 pistons?
The SC7298 pistons come with standard wrist pins (part number 827-2250-20CP1C) included at no additional cost. Upgraded and ultra-duty wrist pins are also available for those seeking additional strength.
Do I need to perform any special machining on the SC7298 pistons?
While the SC7298 pistons are fully CNC machined and balanced, you may need to check and adjust the bore size and ring gaps to ensure proper fitment in your RB25 NEO engine. Always consult with your engine builder for specific machining requirements.
