Forged Pistons for Mitsubishi, 4G63 2G, 94mm Stroke, 86mm, 9:1 or EVO VIII/EVO IX, 9.5:1 (CP Pistons SC7217)
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|
Make |
Mitsubishi |
|
Model |
4G63 2G (7-Bolt) |
|
Part Number |
SC7217 |
|
Cylinders |
4 |
|
Bore (in) |
3.386 |
|
Bore (mm) |
86 |
|
Size |
+1.0mm |
|
Stroke |
94 |
|
Conrod |
150 |
|
Comp Height (in) |
1.252 |
|
Comp Height (mm) |
31.8 |
|
Dom/Dish CC |
-14.2 |
|
Compression Ratio |
9 |
|
Weight (Grams) |
313 |
|
Pin (mm) |
22 |
|
Rings |
CPN-3386 |
|
Ring Thickness |
1.0 x 1.2 x 2.8mm |
|
Pin included (Standard) |
866-2500-18CP1C |
|
Upgraded Pin |
866-2500-20CP3C |
|
Ultra Duty Pin |
866-2500-25CP3C |
|
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 Mitsubishi, 4G63 2G, 94mm Stroke, 86mm, 9:1 or EVO VIII/EVO IX, 9.5:1 (CP Pistons SC7217) |
|---|---|
| Brands | CP Carrillo |
| Engine | 4G63 |
| Make | Mitsubishi |
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 ratio do the SC7217 pistons provide for the 4G63 engine?
The SC7217 pistons offer a compression ratio of 9:1 for standard applications and 9.5:1 for EVO VIII/EVO IX configurations. Ensure that your engine is properly tuned to match the desired compression for optimal performance.
What are the recommended machining requirements for the SC7217 pistons?
When installing SC7217 pistons, ensure that the bore clearance is set correctly according to your engine's specifications. Additionally, verify that the ring gaps are adjusted properly for your application to prevent issues under high RPM and boost conditions.
What is the weight of the SC7217 pistons and how does it affect engine performance?
The SC7217 pistons weigh 313 grams each. Lighter pistons can improve engine response and reduce reciprocating mass, but it's crucial to balance them with the rest of the rotating assembly to maintain reliability and performance.
Are the SC7217 pistons compatible with high lift camshafts?
Yes, the SC7217 pistons feature deep valve reliefs designed to accommodate high lift camshafts, making them suitable for performance builds that require increased airflow and power.
What type of wrist pins are included with the SC7217 pistons?
The SC7217 pistons come with standard wrist pins (part number 866-2500-18CP1C) included at no additional cost. Upgraded and ultra-duty pins are also available for those looking to enhance durability in high-performance applications.
