Forged Pistons for Mitsubishi, 4B11 / EVO X, 86.5mm, 10:1 (CP Pistons SC7225)
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|
Make |
Mitsubishi |
|
Model |
4B11T / EVO X |
|
Part Number |
SC7225 |
|
Cylinders |
4 |
|
Bore (in) |
3.406 |
|
Bore (mm) |
86.5 |
|
Size |
+0.5mm |
|
Stroke |
86 |
|
Conrod |
143.75 |
|
Comp Height (in) |
1.313 |
|
Comp Height (mm) |
33.4 |
|
Dom/Dish CC |
1.7 |
|
Compression Ratio |
10 |
|
Weight (Grams) |
335 |
|
Pin (mm) |
23 |
|
Rings |
CPN-3406 |
|
Ring Thickness |
1.0 x 1.2 x 2.8mm |
|
Pin included (Standard) |
905-2250-15CP1C |
|
Upgraded Pin |
905-2250-19CP3C |
|
Ultra Duty Pin |
905-2250-26CP3C |
|
Locks |
905x073 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, 4B11 / EVO X, 86.5mm, 10:1 (CP Pistons SC7225) |
|---|---|
| Brands | CP Carrillo |
| Engine | 4B11T / EVO X |
| 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 is the recommended bore clearance for the SC7225 pistons?
For the SC7225 pistons, a typical bore clearance of 0.0015" to 0.0025" is recommended. However, it's crucial to confirm this with your specific engine build and machining practices, as clearances may vary based on factors like thermal expansion and intended use.
What compression ratio do the SC7225 pistons provide?
The SC7225 pistons are designed to achieve a compression ratio of 10:1 when installed in a Mitsubishi 4B11T engine. Ensure that your cylinder head and gasket choice align with this ratio for optimal performance.
Can I use the SC7225 pistons with high lift camshafts?
Yes, the SC7225 pistons feature deep valve reliefs that accommodate high lift camshafts, making them suitable for performance applications. Always verify that your camshaft specifications are compatible with the piston design to avoid interference.
What type of wrist pins are included with the SC7225 pistons?
The SC7225 pistons come with standard wrist pins (part number 905-2250-15CP1C) included at no additional cost. If you require upgraded or ultra-duty pins, options are available separately.
What machining processes should I consider when installing SC7225 pistons?
When installing SC7225 pistons, ensure that the cylinder bores are properly honed to match the piston size, and check that the ring gaps are set according to your engine's specifications. Balancing the rotating assembly is also crucial for optimal performance and reliability.
