CP Pistons FA20 / 4U-GSE
CP Pistons EJ20 WRX / EJ205
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CP Pistons for EJ20 WRX / EJ205 Engines
Enhance the performance of your Subaru EJ20 WRX or EJ205 engine with CP Pistons, designed for precision and durability. These pistons are engineered to deliver optimal performance, ensuring your engine runs smoothly and efficiently. Available in various bore sizes, CP Pistons cater to different engine requirements, making them a versatile choice for enthusiasts and professionals alike.
Available Options:
- Bore: 92mm (STD) / Compression: 8.5:1 - Part#: SC7399
- Bore: 92.5mm (+0.5mm) / Compression: 8.5:1 - Part#: SC7400
- Bore: 93mm (+1mm) / Compression: 8.5:1 - Part#: SC7401
Key Features:
- High-quality construction for enhanced durability
- Precision-engineered for optimal performance
- Available in multiple bore sizes to suit your needs
Note: Standard bore size pistons are not recommended for used bores unless minimal wear is present and the correct piston to bore clearance is maintained. Please ensure compatibility before purchase, as exchanges or refunds are not available for clearance issues.
| Product Name | CP Pistons EJ20 WRX / EJ205 |
|---|---|
| Brands | CP Carrillo |
| Engine | EJ20 |
| Make | Subaru |
Delivery & Freight
We are an Australian-based company that ships items nationally and internationally, usually within 48 hours of receiving your order. High-value items shipped internationally are sent via DHL Express, while lower-value items are sent via Australia Post Express unless otherwise instructed.
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Disclaimer:
Product images are for description purposes only. Actual product may vary.
Shipping calculations available at checkout.
If you are unsure, get in touch by emailing [email protected], messaging us on Facebook, or phoning us at +61 7 5645 1333 (8am to 2pm AET).
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 bore sizes are available for the CP Pistons EJ20 WRX / EJ205?
The CP Pistons for the EJ20 WRX / EJ205 are available in three bore sizes: 92mm (STD), 92.5mm (+0.5mm), and 93mm (+1mm), all with a compression ratio of 8.5:1.
Do I need to use specific locks with these pistons?
These pistons are supplied without locks, so you will need to use the factory locks that are compatible with your engine.
What should I consider regarding piston to bore clearance?
It's crucial to maintain the correct piston to bore clearance, especially if using standard bore size pistons on used bores. Ensure minimal wear is present to avoid issues.
Are these pistons suitable for high-performance applications?
Yes, CP Pistons are designed for enhanced durability and optimal performance, making them suitable for both enthusiasts and professional builds in high-performance applications.
What machining is required for proper fitment of these pistons?
Before installation, ensure that the bore is properly sized and honed to match the selected piston size. This is essential for achieving the correct clearance and performance.
