Forged Pistons for Nissan SR20 87 9:1 (CP Pistons SC7326)
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|
Make |
Nissan |
|
Model |
SR20DE/DET |
|
Part Number |
SC7326 |
|
Cylinders |
4 |
|
Bore (in) |
3.425 |
|
Bore (mm) |
87 |
|
Size |
+1.0mm |
|
Stroke |
86 |
|
Conrod |
136.25 |
|
Comp Height (in) |
1.26 |
|
Comp Height (mm) |
32 |
|
Dom/Dish CC |
-11.35 |
|
Compression Ratio |
9 |
|
Weight (Grams) |
321 |
|
Pin (mm) |
22 |
|
Rings |
CPN-3425 |
|
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 87 9:1 (CP Pistons SC7326) |
|---|---|
| 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 bore clearance for the SC7326 pistons?
For the SC7326 pistons, a typical bore clearance of 0.0015" to 0.0025" is recommended. However, final clearance should be determined by the engine builder based on the specific application and intended use.
What compression ratio can I expect with the SC7326 pistons in an SR20 engine?
The SC7326 pistons provide a compression ratio of 9:1 when used in an SR20 engine with the appropriate deck height and gasket thickness. Ensure to verify these parameters during assembly for optimal performance.
Do I need to modify my SR20 engine to fit the SC7326 pistons?
The SC7326 pistons feature deep valve reliefs to accommodate high lift camshafts and oversized valves. However, depending on your specific setup, additional machining or modifications may be required for optimal fitment.
What type of wrist pins are included with the SC7326 pistons?
The SC7326 pistons come with standard wrist pins (part number 866-2250-15CP1C) included at no additional cost. Upgraded and ultra-duty pins are also available for those seeking enhanced performance.
How should I handle the installation of the SC7326 pistons?
When installing the SC7326 pistons, ensure that the piston rings are properly aligned and that the piston-to-wall clearance is within specifications. It is also crucial to follow the manufacturer's guidelines for torque settings on connecting rods to ensure reliability.
