Forged Pistons for Nissan SR20 86.5 11:1 (CP Pistons SC7320)
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|
Make |
Nissan |
|
Model |
SR20DE/DET |
|
Part Number |
SC7320 |
|
Cylinders |
4 |
|
Bore (in) |
3.406 |
|
Bore (mm) |
86.5 |
|
Size |
+0.5mm |
|
Stroke |
86 |
|
Conrod |
136.25 |
|
Comp Height (in) |
1.26 |
|
Comp Height (mm) |
32 |
|
Dom/Dish CC |
0 |
|
Compression Ratio |
11 |
|
Weight (Grams) |
326 |
|
Pin (mm) |
22 |
|
Rings |
RS1610-3406-0 |
|
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 Nissan SR20 86.5 11:1 (CP Pistons SC7320) |
|---|---|
| Brands | CP Carrillo |
| Engine | SR20 |
| 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 is the recommended compression ratio for the SC7320 pistons?
The SC7320 pistons have a compression ratio of 11:1, making them suitable for performance applications where higher compression is desired. Ensure that your engine's setup, including fuel quality and tuning, can support this compression level.
What bore size do the SC7320 pistons accommodate?
The SC7320 pistons are designed for an 86.5mm bore size, which is a +0.5mm oversize for the Nissan SR20 engine. Proper machining of the cylinder bore is essential to achieve the correct clearance.
What type of wrist pins are included with the SC7320 pistons?
The SC7320 pistons come with standard wrist pins (part number 866-2250-15CP1C) included at no additional cost. Upgraded and ultra-duty wrist pins are available for those seeking additional strength.
Can the SC7320 pistons handle high lift camshafts?
Yes, the SC7320 pistons feature deep valve reliefs that accommodate high lift camshafts, making them suitable for performance builds that require enhanced airflow and power.
What is the weight of the SC7320 pistons?
Each SC7320 piston weighs 326 grams. This lightweight design contributes to reduced reciprocating mass, which can improve engine response and performance.
