CP Pistons 4G64 with EVO VIII/IX Head
Spool CP Custom Mitsubishi 4G93 Pistons
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These Spool CP Custom Pistons are available in:
- Bore: +0.5mm
- Comp Ratio: 9.0:1
- 5310 Series Pins
- 4 Valve Pockets
- 2618 Forged Alloy
Note: Also available as a custom piston in any bore size and comp ratio – please email for details and pricing.
CP Pistons standard features include:
- 5310 Gudgeon Pins (9310 thicker wall thickness pins are available as an upgrade)/li>
- 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
- Double pin oilers force fed from oil ring groove
- Pick lock grooves for easy lock removal
- Pin fitting included
| Product Name | Spool CP Custom Mitsubishi 4G93 Pistons |
|---|---|
| Brands | CP Carrillo |
| Engine | 4G93 |
| Make | Mitsubishi |
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 is the recommended bore clearance for the Spool CP Custom Mitsubishi 4G93 Pistons?
The recommended bore clearance for these pistons typically ranges from 0.0015" to 0.0025". However, it's crucial to consult with your engine builder as clearance may vary based on specific engine conditions and intended use.
What compression ratio do these pistons provide and how does it affect performance?
These pistons provide a compression ratio of 9.0:1, which is suitable for a balance of performance and reliability. This ratio can enhance throttle response and power output, but ensure that your fuel quality and tuning match the compression to avoid detonation.
Are the gudgeon pins included with the Spool CP Custom Mitsubishi 4G93 Pistons suitable for high-performance applications?
Yes, the included 5310 series gudgeon pins are designed for high-performance applications. They offer a thicker wall for added strength, but if you're aiming for extreme performance, consider upgrading to the 9310 thicker wall pins for enhanced durability.
What machining processes are necessary before installing these pistons?
Before installation, ensure that the cylinder bores are honed to the correct size and finish for the pistons. Additionally, check that the ring gaps are set according to your engine's specifications and intended use to ensure optimal performance and longevity.
Can these pistons accommodate high lift camshafts?
Yes, these pistons feature deep valve reliefs designed to accommodate high lift camshafts, making them suitable for performance builds that require increased valve lift without risking piston-to-valve contact.
