Forged Pistons for Mini Cooper S, 1.6L Tritec, 78mm, 8.3:1 (CP Pistons SC7512)
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|
Make |
Mini Cooper S |
|
Model |
Tritec 1.6L |
|
Part Number |
SC7512 |
|
Cylinders |
4 |
|
Bore (in) |
3.071 |
|
Bore (mm) |
78 |
|
Size |
+1.0mm |
|
Stroke |
85.8 |
|
Conrod |
131.5 |
|
Comp Height (in) |
1.043 |
|
Comp Height (mm) |
26.5 |
|
Dom/Dish CC |
-2.1 |
|
Compression Ratio |
8.3 |
|
Weight (Grams) |
235 |
|
Pin (mm) |
21 |
|
Rings |
CPN-3071 |
|
Ring Thickness |
1.0 x 1.2 x 2.8mm |
|
Pin included (Standard) |
827-2250-16CP1C |
|
Upgraded Pin |
827-2250-20CP3C |
|
Ultra Duty Pin |
827-2250-25CP3C |
|
Locks |
827x063 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 Mini Cooper S, 1.6L Tritec, 78mm, 8.3:1 (CP Pistons SC7512) |
|---|---|
| Brands | CP Carrillo |
| Engine | Tritec |
| Make | BMW, Mini |
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 SC7512 pistons?
For the SC7512 pistons, a typical bore clearance of 0.0015" to 0.0025" is recommended. However, this can vary based on the specific application and operating conditions, so always consult with your engine builder for precise measurements.
What type of ring gaps should I use with the SC7512 pistons?
For the SC7512 pistons, the ring gaps should generally be set according to the intended use of the engine. A common starting point is 0.004" to 0.005" per inch of bore for the top ring and slightly more for the second ring. Adjustments may be necessary based on boost levels and RPM.
Can I use these pistons with a stock Mini Cooper S engine?
Yes, the SC7512 pistons can be used with a stock Mini Cooper S engine, but modifications may be required for optimal performance. Ensure that the engine is properly tuned and consider upgrading other components such as the fuel system and intercooler for enhanced reliability and power.
What is the maximum boost pressure recommended for the SC7512 pistons?
While the SC7512 pistons are designed for performance, the maximum boost pressure will depend on various factors including engine tuning, fuel quality, and overall engine build. Typically, boost levels around 15-20 psi are common for modified applications, but always assess the entire engine setup for reliability.
Do I need to modify my engine block to fit the SC7512 pistons?
In most cases, the SC7512 pistons will fit a stock Mini Cooper S engine block without major modifications. However, ensure that the block is properly machined and that the piston-to-wall clearance is within specifications. Additional modifications may be necessary if you are significantly increasing power or changing the compression ratio.
