CP Pistons EJ257 WRX STI (Stroker)
CP Pistons FA20DIT
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CP Pistons for FA20DIT Engines
Enhance the performance of your FA20DIT engine with CP Pistons, renowned for their precision engineering and durability. While we do not carry these pistons in stock, they are available for special order to meet your specific needs. Choose from the following options:
- Bore: 86mm (STD) / Compression: 10.5:1 - Part#: SC7407
- Bore: 86.5mm (+0.5mm) / Compression: 10.5:1 - Part#: SC7408
Key Features:
- High-quality construction for enhanced engine performance
- Available in standard and oversized bore options
- Designed for optimal piston to bore clearance
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 be aware that we cannot offer exchanges or refunds for clearance issues with standard bore pistons.
| Product Name | CP Pistons FA20DIT |
|---|---|
| Brands | CP Carrillo |
| Engine | FA20, 4U-GSE |
| 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 FA20DIT?
The CP Pistons for the FA20DIT engine are available in two bore sizes: 86mm (standard) and 86.5mm (+0.5mm). Ensure you select the appropriate size based on your engine's requirements.
What is the recommended compression ratio for these pistons?
Both the standard and oversized CP Pistons for the FA20DIT engine have a compression ratio of 10.5:1. This ratio is designed to enhance performance while maintaining reliability.
Are these pistons suitable for used bores?
Standard bore size pistons are not recommended for used bores unless there is minimal wear and the correct piston to bore clearance is maintained. It's crucial to assess the condition of your bore before installation.
What should I consider regarding piston to bore clearance?
CP Pistons are designed for optimal piston to bore clearance. It's essential to measure and ensure the correct clearance is maintained during installation to prevent issues such as piston slap or excessive wear.
Can I return or exchange these pistons if there are clearance issues?
No, we cannot offer exchanges or refunds for clearance issues with standard bore pistons. It's important to verify your bore condition and clearance before ordering.
