Forged Pistons for Mitsubishi, 4B11 / EVO X, 90mm, 10:1 (CP Pistons SC7227)
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|
Make |
Mitsubishi |
|
Model |
4B11T / EVO X |
|
Part Number |
SC7227 |
|
Cylinders |
4 |
|
Bore (in) |
3.543 |
|
Bore (mm) |
90 |
|
Size |
+4.0mm |
|
Stroke |
86 |
|
Conrod |
143.75 |
|
Comp Height (in) |
1.313 |
|
Comp Height (mm) |
33.4 |
|
Dom/Dish CC |
-3.2 |
|
Compression Ratio |
10 |
|
Weight (Grams) |
369 |
|
Pin (mm) |
23 |
|
Rings |
CPN-3543 |
|
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, 90mm, 10:1 (CP Pistons SC7227) |
|---|---|
| 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 SC7227 pistons?
For the SC7227 pistons, a typical bore clearance of 0.0015" to 0.0020" is recommended. However, this can vary based on your specific application and the engine builder's preferences. Always consult with your engine builder for the best clearance based on your setup.
What compression ratio do the SC7227 pistons provide?
The SC7227 pistons provide a compression ratio of 10:1 when used in the Mitsubishi 4B11T engine. This ratio is suitable for performance applications but should be verified with your engine's specific setup, including boost levels and fuel quality.
What type of wrist pins are included with the SC7227 pistons?
The SC7227 pistons come with standard wrist pins (part number 905-2250-15CP1C) included at no additional cost. Upgraded and ultra-duty pins are also available for those seeking additional strength.
Can the SC7227 pistons accommodate high lift camshafts?
Yes, the SC7227 pistons feature deep valve reliefs designed to accommodate high lift camshafts and oversized valves, making them suitable for performance builds that require these modifications.
What is the weight of the SC7227 pistons?
The SC7227 pistons weigh 369 grams each. This weight is important for maintaining a balanced rotating assembly, especially in high-performance applications.
